SU1275456A1 - Multichannel interface for linking the using equipment with input-output channelsof computer - Google Patents

Abstract

The invention relates to computing and can be used in computing systems in organizing the common fields of external devices. The aim of the invention is to increase the utilization rate of the equipment. The device contains communication units with a channel, and communication units with subscribers. Each communication unit with a channel contains input and output switches, an interface signal generation node, a subscriber initiative fixing node, a subscriber state allocation node, an established communication fix node, a subscriber-direction determination node, a subscriber channel, and a subscriber address display node. subscriber occupancy determination node, subscriber channel direction determination node. Each communication unit with subscribers contains input and output switches, address decoder, subscriber initiative allocator node, subscriber state byte request node, address request node, occupancy determination node. The invention allows for N I / O channels to organize§ (To send a common field consisting of M groups of Subscribers, to connect channels to common subscribers on the initiative of channels or subscribers and to connect a channel to an addressable subscriber, provided that it is included in the common field provided that the subscriber is not engaged in performing I / O operations and that the interface lines are free. 3 Cp f-crystals, 18 ill.

Description

(54) MULTI-CHANNEL DEVICE FOR PAIRING SUBSCRIBERS WITH CHANNELS OF I / O COMPUTER (57) The invention relates to computer technology and can be used in computer systems for the organization of common fields of external devices. The aim of the invention is to increase the utilization of equipment. The device comprises communication units with a channel and communication units with subscribers. Each communication unit with the channel contains input and output switches, an interface signal generation unit, a subscriber initiative fixation node, a subscriber status highlighting node, an established connection fixation node, a direction determination node, a subscriber-channel connection, a subscriber address recognition node, a subscriber busy determination node, a node determine the direction of communication channel subscriber. Each subscriber communication unit contains input and output switches, an address decoder, a subscriber initiative allocation node, a subscriber status byte request node, an address request node, an employment determination node. The invention allows for N input / output channels to organize a common field, consisting of M groups of Subscribers, connecting channels to subscribers of a common field on the initiative of channels or subscribers and connecting a channel to an addressed subscriber, provided that it is part of a common field and provided that the subscriber does not busy with I / O operations and that the interface lines are free. 3 s.p. f-ly, 18 ill.

The invention relates to computer technology and can be used in multi-machine computing systems when organizing common fields of external devices.

The purpose of the invention is to increase the utilization of equipment.

In FIG. 1 shows a block diagram of the proposed device; in FIG. 2 diagram of a node for fixing a subscriber's initiative; in FIG. 3 · - diagram of the node determining the direction of communication channel subscriber; in FIG. 4 is a diagram of a request status byte request node; in FIG. 5 is a diagram of an output switch of a communication unit with a channel; in FIG. 6 diagram of the interface signal generating unit; in FIG. 7 is a diagram of a subscriber state allocation unit; in FIG. 8 diagram of the fixed connection fixing unit; in FIG. 9 is a diagram of a node for determining a direction of communication of a subscriber channel; in FIG. 10 is a diagram of an input switch of a communication unit with a channel; in FIG. 11 is a diagram of a recognition node ’a subscriber’s address; in FIG. 12 is a diagram of a subscriber busyness determination node; in FIG. 13 is a diagram of an input switch of a communication unit with subscribers; in FIG. 14 is a diagram of an address decoder; in FIG. 15 is a diagram of a subscriber initiative allocation unit; in FIG. 16 is a diagram of an address request node; in FIG. 17 is a diagram of a node for determining employment; in FIG. 18 is a diagram of an output switch of a communication unit with subscribers.

The device consists of N blocks 1 of communication with the channel and M blocks of 2 communication with subscribers.

In addition, the device has a group of interface inputs and outputs of the channels - lines 3 and 4 and a group of interface inputs and outputs of subscribers of lines 5 and 6, as well as inter-unit communication lines 7-27.

Each block 1 contains an output switch 28, an interface signal generation unit 29, a subscriber initiative fixing unit 30, a subscriber status highlighting unit 31, an established connection fixing unit 32, a subscriber-channel communication direction determining section 33, an input switch 34, a subscriber address recognition section 35 , the subscriber busyness determination section 36, the channel-subscriber communication direction determination section 37, and the communication lines 38-62.

Each block 2 contains an input switch 63, an address decoder 64, a subscriber initiative allocation unit 65, a subscriber status byte request unit 66, an address request unit 67, a busy determination unit 68, an output switch 69, and communication lines 70-80.

The subscriber initiative fixing unit 30 (Fig. 2) contains trigger groups 81-86, AND element groups 8798, and OR element group 99 and 100.

The node 37 determining the direction of communication channel-subscriber (Fig. 3) contains a group of OR elements 101-105, a group of elements AND 106-112, a group of triggers 113 and 114, a group of delay elements 115-117 and a group of elements NOT 118 and 119.

The subscriber status byte request node 66 (FIG. 4) comprises a trigger 120, an AND element 121, an HE element 122, and delay elements 123-126.

The output switch 28 of the communication unit with the channel (FIG. 5) contains amplifiers-transmitters 127-136, a group of OR elements 137-147, a group of elements AND 148-172 and elements NOT 173 and 174.

The interface signal generation unit 29 (Fig. 6) contains priority shapers 175 and 176, an address shaper 177, triggers 178-181, OR elements 182-184, AND elements 185194, and elements NOT 195-199.

The subscriber status highlighting unit 31 (Fig. 7) contains decoders 200 and 201, triggers 202 and 203, an OR element 204, and AND elements 205-210.

Node 32 fixing the established connection (Fig. 8) contains a group of triggers 211 and 212, a group of elements AND 213-216 and a group of elements NOT 217 and 218.

Node 33 Determining the direction of communication, the subscriber-channel (Fig. 9) contains the priority driver 219, the group of triggers 220 and 2.21, the group of elements OR 222 and 223 ,. groups of elements AND 224-227 and groups of elements NOT 228 and 229.

The input switch 34 of the communication unit with the channel (Fig. 10) contains a group of amplifier receivers 230-237.

The subscriber address recognition node 35 (Fig. 11) contains a subscriber address register 238, an address decoder 239 abo3

2 7 5 4 5 benta, typeset registers 240 and 241, groups of elements UM 242-244, elements OR 245 and 246, groups of elements I 247-250, one-shot 251, element I 251, element I 252, element NOT 253 $ and delay element 254.

The subscriber busy determination node 36 (Fig. 12) contains a group of OR elements 255-257, a group of elements NOT 258-261, elements NOT 262 and 263, as well as groups of elements AND 264 and 265.

The input switch 63 btsoka communication with subscribers (Fig. 13) 'contains a group of amplifier receivers 266-271.

The address decoder 64 (FIG. 14) comprises an address register 272, a decoder 273, a group of AND elements 274, and an element NOT 275.

The site 65 allocation initiative of the subscriber (Fig. 15) contains a decoder 276 "elements And 277 and 278.

The address request unit 67 (FIG. 16) comprises a trigger 279, a delay element 280, and AND elements 281 and 282.

Node 68 definition of employment (Fig. 17) contains the element. OR 283 and the element is NOT 284.

The output switch 69 of the communication unit with the subscribers (Fig. 18) contains OR elements 285-291, a group of amplifier transmitters 292-297, a group of elements AND 298-309, an element NOT 310 and an delay element 311.

The device operates as follows. 35

In the initial state, all the register circuits of the device are reset, there is no permission to connect one or another channel to one or another group of subscribers of a common field, 40 each channel has a corresponding block 1, each block of subscribers of a common field has a corresponding block 2.

Logical connection of channels to 45 subscribers of a common field is carried out during a sequence of signals of the initial sampling (channel initiative) or a sequence of signals entered by a subscriber (initiative of 50 subscribers of a common field).

The logical connection of the channel to the addressed subscriber of the common field during the sequence of signals of the initial sampling is performed under 55 following conditions: the addressed subscriber is part of the common field; the addressed subscriber is not busy performing an I / O operation specified by another channel; the interface lines, with which the addressed subscriber is connected, are free: you, i.e. currently, none of the channels is logically connected to the interface lines of the subscriber group, which includes the addressed subscriber ”

If the addressed subscriber is not part of the common field or it is forbidden for this channel to work with this subscriber by setting the corresponding dialed register 240 and 241 of node 35 to the Prohibition position, then the address of this subscriber is not recognized, the FBG-K signal is distributed via the I / O interface line, The permission signal for connecting the channel to the common field is not generated.

If the addressed subscriber is part of the common field, but the interface lines to which this subscriber is connected are busy, or busy, then node 36 generates a sign of busyness of the addressed subscriber, node 29, by the presence of this sign, on behalf of the addressed subscriber brings the sequence of initial sampling signals to the end, having issued a status byte with a Busy *, * pointer to the channel, the signal to enable the channel to connect to the common field by the node 37 is not generated.

The sequence of initial sampling signals begins with the channel issuing the address of the subscriber on the interface line, accompanied by an ADR-K signal, which, through line 4, enter block 35 (Fig. 10) of block 1.

Having passed through the receiver amplifiers 231 and 235, the subscriber’s address and the ADR-K signal on lines 58 and 59 are sent to node 35 (Fig. II), where the address by the ADR-K signal through the I 248 elements and the OR 242 element is entered in the address register 238 and decrypted.

The address decoder 239 has K outputs (by the number of subscribers in the general field) divided by AND groups (by the number of subscriber groups in the general field).

The first group includes K 'outputs, the second - etc. (by the number of subscribers in groups of the general field).

By means of mounting jumpers, the outputs of the decoder 239 are combined with the inputs of the group of elements And 249 and 250 in the order of decreasing the priority of subscribers in the groups of the general field, and the second inputs receive voltage levels from the outputs of the registers 240 and 241 in the same order.

Using these dialers, you can temporarily exclude (make it unavailable 5 for a given channel) from the total field any number of subscribers.

If the subscriber’s address is entered in register 238, which is not part of the common field or is temporarily out of ¹⁰ keys, then low voltage levels are present at the outputs of all I 249 and 250 elements, which corresponds to the unrecognized subscriber address. At the output of the OR 246 element there is also a low level ¹⁵ , which, having passed the element NOT 253, allows the VBR-K signal issued by the channel to follow the ADR-K signal to pass along the circuit: line 4, amplifier receiver 237 of switch 34, line ²⁰ 59, the delay element 254 of the node 35, the AND element 252, line 52, the OR element 146 of the switch 28 (Fig. 5), the amplifier-transmitter 136, line 3.

If the subscriber’s address is included in register 238, which is part of the general field and is not temporarily excluded from it, then the output of only one element And from the group of elements I 249 and 250 of node 35, the input of which reaches a high level from the output of the decoder 239 corresponding to the subscriber address, a high level is present, which corresponds to the identification of the subscriber address. This level, passing through the chain: one ► of the OR 243 and 244 elements, the OR 246 element and the NOT 253 element, blocks the propagation of the FBG-K signal through the And 252 element. Busy addressable subscriber included in the 40th common field , and the busyness of the interface line to which this subscriber is connected is determined by the node 36 (Fig. 12).

A sign of employment of the addressed ⁴⁵ subscriber is the presence of a high voltage level at the output of the corresponding element And 264 and 265, the inputs of which at this time receive a high level from node 35 (line. 50 48) - a sign of recognition of the subscriber address, a high level from node 32 (line 46) through the corresponding element NOT 259 or 261 - the absence of the established connection of the addressable 55 percent with this channel and the high level from the nodes 32 of all blocks 1 (line 10) through the corresponding element NOT 258 or 260 - the existence of the established communication of the addressed subscriber with any other channel.

A sign of the busyness of the interface lines to which the addressed subscriber is connected is the presence at this time of a high level at the first or third inputs of the corresponding OR element 255 or 256 (lines 7 and 13).

When the addressed subscriber is busy or the interface lines are busy, the output of the OR 257 element (line 50) of the node 36 (Fig. 12) contains a high level, which sets the subscriber busy trigger 181 in the node 29 (Fig. 6), preparing the node 29 on behalf of the addressed subscriber, end the sequence of signals of the initial sampling, during which a status byte with a busy indicator is output to the channel. The VBR-K signal through the AND 194 and OR 184 elements sets the RAB-A trigger 180 and the ADR-A trigger 179 to a single state, resulting in a response to the VBR-K signal to the channel from the output of the trigger 180 via line 38 through the element OR 144 and an amplifier-transmitter 134 of the switch 28 receives the signal RAB-A. The ADR-K signal through the element NOT 196 of the node 29 blocks the output of the ADR-A signal to the channel from the output of the ADR-A trigger 179. The address of the subscriber, on behalf of whom the sequence of signals of the initial sampling continues, is entered in the register 238 of the address of the node 35.

In response to the RAB-A signal, the channel picks up the ADR-K signal, as a result of which the subscriber’s address is given in the channel: register output 238 of node 35, line 51, group of elements AND 189, group of elements OR 182 of node 29, line 38, group elements And 169, elements 137-140 and amplifier-transmitters 127-130 of the switch 28 and the ADR-A signal on the circuit: trigger output 179, element And 186 node 29, line 38, element OR 143 and amplifier-transmitter 133 of switch 28.

After receiving and verifying the subscriber’s address, the channel issues a command accompanying it with a UPR-K signal, which, having passed the amplifier-receiver 234 of the switch 34 and the element And 190 of the node 29, sets the ADR-A trigger 179 to the zero state, thereby stopping the generation of the ADR-signal A, and trigger 178 producing UNR-A is in a single state. The issuance of the UPR-K signal to the channel is blocked by the presence of the UPR-K signal, which through element 5 is NOT 195 fed to the input of element And 185 of node 29.

In response to the removal of the ADR-A signal, the channel responds with the removal of the UPR-K signal, as a result of which a θ status byte with a Busy pointer (third byte digit) and the UPR-A signal are output to the channel.

The channel, having received the status byte, gives an INF-K signal, which, having passed the amplifier-receiver 233 of the switch 34, the AND element 191 and the OR element 183 of the node 29, sets the triggers 178, 180 and 181 to the initial state, thereby completing the sequence of initial sampling signals. ^twenty

At the time of generation stop signal BRA-251 A monostable multivibrator 35 generates a single node signal, which leads to the initial state address register 238 at the same node 35. ²⁵ Menno channel with the issuance of the status byte with a pointer Busy signal output from AND gate 207 via node 31 corresponding element And 96 or 98 of the node 30 (Fig. 2) sets the trigger corresponding to the subscriber’s address from the group of triggers 85 and 86 to a single state 30, fixing the fact of the channel’s failed connection with the addressed subscriber. 3 $

If the address of the subscriber, which is part of the general field, is temporarily not excluded from it, is free from the I / O operation, and the lines of the interface to which it is connected are free, then the outputs of the corresponding element And the group of elements AND 249 and 250 and the corresponding element OR 243 or 244 of the node 45. 35 there are high levels, i.e. the subscriber’s address is recognized and the group of subscribers of the common field, which includes the addressed subscriber, is defined; at the output of the OR element 283 of node 50 68 of that block 2, which is connected to the group of subscribers, which includes the addressed subscriber, by its inputs 5 and 6, there is a low level, i.e. interface lines are free; at the outputs of the corresponding elements NOT 217 and 218 of the node 32 of all blocks 1 - neither high vdob, i.e. the addressed subscriber is free from I / O; at the output of the OR element 257 of the node 36 there is a low level that blocks the operation of the node 29; at the output of the corresponding element NOT 262 or 263 of the node 36 is a high level, i.e. the addressed subscriber and the interface lines are free.

As a result, the FBG-K signal along the circuit: the output of the amplifier-receiver 237 of the switch 34, line 59 sets the corresponding trigger 113 or 114 in node 37 through its input logic to a single state, which is a sign of connecting this channel to the lines of the user group interface, which includes the addressed subscriber. A high level from the output of this trigger goes through the corresponding element OR 101 or 102 to line 7 of the priority system, thereby prohibiting through the elements NOT 118 and 119 nodes 37 of all subsequent blocks 1 the installation of similar triggers in a single state when other channels access a group of subscribers in the structure of which includes the addressed subscriber, at the first inputs of the corresponding elements And 148-165 of the switch 28, allowing the channel to transmit all interface signals from the addressed subscriber, which come from the corresponding unit 2 to the WTO the first inputs of these elements AND through line 8, through the OR element 105 of the node 37 to the input of the chain of delay elements 115-117 for generating a time diagram of the ADR-K, RVB-K and VBR-K signals, through the OR element 285 of the switch 69 (Fig. 18 ) of the corresponding block 2 along line 80 to the input of node 68 (Fig. 17), as a result of which a sign of busy lines of the interface lines of the group of subscribers of the common field is generated, which includes the addressed subscriber, which is issued on line 25 to all blocks 1 to prevent connecting to -. channels to this group of subscribers during the sequence of initial sampling signals, as well as to the outputs of the corresponding elements And 308 and 309. of the switch 69 of the corresponding unit 2 via line 26, allowing the transmission of interface signals from the initiating channel to a group of subscribers of a common field, which the addressed subscriber is included.

Thus, the channel that started the sequence of initial sampling signals has an addressable ⁵ subscriber, and the initiating channel is available to the addressed subscriber, i.e. the channel interface lines through block 1 and the corresponding block 2 are connected to the interface lines to which the addressed subscriber is connected.

Adress ^ Bonnet on SHIN-K and ADR-K, RVB-K and VBR-K signals through block 1 and the corresponding block. 2 in the same sequence in which they are issued by the channel, arrive at the inputs of the addressed subscriber, who recognizes his address and issues a signal RAB-A through the blocks 2 and 1.

From this point the switch 34 Bloch ²⁰ ka 1 and the switch unit 69 2, the switch unit 63 2 and the switch unit 1 28 operate in relay mode interface signals from the channel to the subscriber and vice versa. The remaining nodes of blocks 1 and 2 perform their functions.

In node 31 (Fig. 7), when the ADR-K and VBR-K signals coincide, the trigger 202 of the initial sampling through the And 205 element is set to a single state, which allows the UPR-K signal to set the trigger through the And 206 element to the subscriber through the And 206 element 203 I / O to a single state 35, if this command is associated with data exchange. Setting the trigger 203 to a single state is blocked by a low level from the output of the OR element. 204, if the channel issues an abo-40 Nent command, which is not connected with the exchange of data. Highlights these commands. decoder 201 of node 31. In response to the command, the subscriber issues status bytes to the channel, which in node 31 receives 45 to the input of decoder 200 to allocate status bytes with indicators Busy, Attention, the control unit has ended and the subscriber's status zero byte.

The signal at the inlet of the And 210 50 element corresponds to the presence of a zero status byte, at the output of the And207 element the status byte with a busy indicator, at the output of And 208 element - a status byte with a warning Caution, '' 55 at the output of And 209 element to the presence of a status byte with a WU pointer finished.

If, during a sequence of initial sampling signals, the addressed subscriber, in response to a command related to data exchange _f, issues a status byte zero, which corresponds to their readiness to perform an operation. I / O, then the signal from the output of the And 210 element through line 45 through the corresponding And 213 or 215 element of the node 32 (Fig. 8) sets the trigger 211 or 212 to a single state, which corresponds to fixing the established connection of the channel with the addressed subscriber. From this moment, the addressed subscriber is busy with respect to all other channels.

A sign of subscriber employment is developed by the assembly assembly of the outputs of the corresponding elements NOT 217 and 218 of all nodes 32 of blocks 1.

The trigger for fixing the established connection is in a single state until the addressable element completes the I / O operation by issuing the status byte with the pointer of the control unit in the channel. The signal from the output of the And 209 element through the corresponding And 214 or 216 element sets this trigger to the zero state. After the channel has received the status byte with the pointer WU, the subscriber removes the RAB-A signal, completing the I / O operation. At the time the subscriber stops generating the RAB-A signal, the single-vibrator 25I generates a single signal, which initializes the register 238 core, ca and triggers 113 and 114.

The sequence of signals entered by the subscriber is called up by the requirement to transmit data when it is in multiplex mode, or to transmit a status byte in the following cases: for transmitting a stored state; to inform the channel that the subscriber who was busy during the previous call is free; to issue a status byte to the channel with the WU pointer, it ended when the operation was completed; to issue a status byte to the channel caused by operator intervention (in the status byte, the Attention indicator or the memory pointer has finished when the subscriber changes from the Not ready state to the Ready state).

If the subscriber has access from several channels, the service request associated with the data exchange in multiplexed mode is issued only to that channel 5, which started the corresponding input-output operation, and the service request caused by operator intervention should be issued in all channels to which this subscriber is available. The subscriber who needs service from the side of the channel issues a TRB-A signal. It is impossible to determine the subscriber’s address using a single TRB-A signal, which means that the channel that is supposed to provide service to this subscriber. To determine the subscriber’s address, certain circuits of block 2, to the input of which the signal TRB-A receives, some of the functions of the input-output channel are taken over.

The signal TRB-A through the amplifier-receiver 271 of the switch 63 (Fig. 13) and the element And 282 node 67 (Fig. 16) $ sets the trigger 279 address request in a single state. A high level from the trigger output 279 through the OR element 288 of the switch 69 (Fig. 18} and the amplifier-transmitter 294 is input to the subscriber on the rights ^{30 of} the RVB-K signal, and through the delay element 311, the OR element 287 and the amplifier-transmitter 293 are VBR-K signal rights. In addition, a high level from the output of flip-flop 279 enters 35 to the input of AND element 281 and through OR element 283 of node 68 (Fig. 17) to the inputs of all blocks 1 as a sign of busy lines of the interface of a subscriber group, which this 40 subscriber enters to prevent the connection of any channel by his an initiative to this group of subscribers of the general field.

In response to the VBR-K signal, subscriber 43. issues a RAB-A signal and its address on the interface line, accompanying it with an ADR-A signal. The signal RAB-A through the amplifier-receiver 267 of the switch 63 is fed to the input of the OR element 283, 50 confirming the busyness of the interface lines, and the subscriber's address through the amplifiers-receivers 268 and the group of elements And 274 by the ADR-A signal from the output of the amplifier-receiver 270 is entered in register 55 272 the address is decrypted, and the result of decryption from the output of the decoder 273 on line 20 goes to the inputs of all

1275.456 blocks 1. At the same time, the ADR signal passes through the I element 281 and the delay element 280 along lines 24 to the inputs of all I blocks and through the I delay element 126 to the input of the I element 121, In the node 33 (Fig. 9) of each block 1, the decryption result the subscriber’s addresses on line 1I and information about the established links of the channel with the subscribers of the common field from node 32 on line 46 are received at the inputs of elements 226 and 227 in a certain sequence.

If the established 'connection of the channel with this subscriber is fixed, then in node 33 of this block 1 the corresponding trigger 220 or 221 for determining the direction of communication is set to a single state. A high level from the output of this trigger through the shaper 219 goes to the node 33 to the input of the corresponding element And 106 or 108 and through the element NOT 228 or 229 to the input of the element And 121, blocking its operation.

A high level from the overall output of the driver 219 goes to the switch 28, where through the elements OR 147 and 145 and the amplifier-transmitter 135 is issued to the channel as TRB-A signal. Thus, the channel from which it is required is defined. service, and a service request was issued to him.

The channel, having received the TRB-A signal, produces a VBR-K signal, which, through the amplifier-receiver 237, the corresponding elements of the group I and 106 and 108 and OR 103 and 104 sets the trigger from the group of triggers 113 and 114 to a single state, which is a sign of connecting this channel to the group of subscribers of the general field, which includes the subscriber who issued the signal TRB-A. As a result of the connection, the RAB-A signal and the address followed by the ADR-A signal issued by the subscriber are sent to the channel ..

At the same time, the address of the subscriber by the ADR-A signal through the AND 247 elements and the OR 242 elements is entered in the address register 238 and decrypted.

The channel recognizes the subscriber’s address and issues a UPR-K signal, which is fed to the subscriber’s input.

During this sequence of signals, the subscriber issues an INF-A signal to the channel, offering or requesting a redp byte of information, or an UPR-A signal, offering a status byte.

If the subscriber gives an INF-L signal, then information is exchanged, and the device operates in the passive repeater mode.

If the subscriber issues a UPR-A signal, accompanying them with a status byte, then the node circuit 31 allocates a status byte from the various status bytes with a WU pointer, which means in this case the end of the I / O operation. Then the signal from the output of the And 209 element through the corresponding And 214 or 216 element brings the trigger, on which the channel’s connection with this subscriber has been fixed, to its initial state. After the channel receives the status byte, the subscriber removes this status byte and the UPR-A and RAB-A signals, completing the sequence of signals entered by the subscriber .. At the end of the RAB-A signal, a single signal from the output of one-shot 251 initializes the address register 238 and trigger connecting the channel in the node 37.From this moment, the subscriber is free for all channels to which he is available, and the RAB-K signal is issued to this group of subscribers of the common field from the output of the OR element 285 through the element NOT 310, the OR element 286, and the amplifier-transmitter 292.

Intervention (initiative) of the operator can cause the subscriber to transition from the Not Ready state to the Ready state, as a result of which the subscriber circuits form a status byte with a pointer WU is finished, or 4Q asynchronous signal is generated, as a result of which the subscriber circuits form a status byte with a Caution pointer. The formation of these bytes causes a subscriber servicing request, which should be issued to all channels available to this subscriber.

In response to the signal TRB-A, the node 67 generates and through the switch 69 50 gives the subscriber the signals RVB-K and VBR-K. In response to these signals, the subscriber issues a signal RAB-A and its address, accompanying it with an ADR-A signal. The address is entered in register 272, decrypted, 55 and the result of decryption, together with the ADR-A signal that passed through the I element 281 and the delay element 280, 1275456 14 are sent to the corresponding inputs of all blocks 1.

Since in this case no established connection of the channel with this subscriber is fixed in any of the blocks 1, the required drip (direction of the subscriber-channel communication) is not defined, i.e. all triggers 220 and 221 in each block 1 are in the initial state10.

As a result, the inputs of the element 125 receive high levels, allowing the ADR-A signal from the output of the delay element 280 through the delay element 126 15 and the element And 121 to set the status byte trigger 120 to a single state. A high level from the output of this trigger opens the And element and the ADR-A signal is sent to the input of the subscriber who issued the TRB-A signal, on the rights of the UPR-K signal. The subscriber removes the ADR-A signal, thereby stopping the issuance of the UPR-K signal from the output of the And element. In response to the 25 reset of the UPR-K signal, the subscriber issues a status byte with a pointer. Attention or WU has finished depending on the operator’s actions, accompanying it with the UPR signal -BUT.

The status byte goes to the input of the decoder 276, and the result of decryption through the element And 277 (VU finished) or the element And 278 (Attention) goes to the corresponding inputs 35 of all blocks 1.

The UPR-A signal is issued to the subscriber with the rights of the INF-K signal. The subscriber removes the signals UPR-A and RAB-A, ending the sequence of signals. The address register 272 via the HE 275 element and the status byte request trigger 120 through the HE 122 element are initialized by removing the RAB-A signal.

During this sequence of signals, the result of deciphering the subscriber’s address and status bytes are sent to the inputs of node 30 (Fig. 2) of each block 1, as a result of which, in each node 30, a trigger corresponding to the subscriber’s address is set to a single state if a pointer is in the status byte Attention or pointer WU finished.

The signals from the outputs of the triggers of the above groups are fed to the inputs of the shapers 175 and 176.

A single state of any of these triggers is a sign of the start of the development by node 29 of a sequence of signals input on behalf of the subscriber, during which a status byte with a pointer ’’ is displayed on the channel.

The low level from the output of the shaper 175 is issued to the channel as TRB-A signal, at the same time from the output of the shaper 177 the address goes to the inputs of the elements And 166-169.

The channel, having received the TRB-A signal, gives out the VBR-K signal, which sets the trigger 180 for generating RAB-A and the trigger 179 for generating ADR-A to a single state, as a result of which the signal RAB-A, the subscriber’s address and the signal ADR- enter BUT. At the same time, a status byte pointer is formed in the node 29. A high level at the output of AND 188 corresponds to the indicator ’’ ВУ finished ’’, at the output of And 187 corresponds to the indicator ’’ Attention *. ’In node 35, the subscriber’s address is entered in address register 238 and decrypted.

The channel recognizes the address and issues sigUPR-K, which, through the AND element, has stopped

190 resets the trigger 179 thereby generating the ADR-A signal, and sets the trigger I78 of the UPR-A generation, the output of which is blocked by a low level from the output of the HE 195 element, to a single state. The channel responds with the UPR-K signal to remove the ADR-A signal, as a result, the status byte with the corresponding pointer and the UPR-A signal are output to the channel.

At node 31, the status bytes are decrypted, as a result of which the signal at node 30, through the corresponding AND element, leads to the trigger, the initiator of the described sequence of signals, from the output of the And 208 or 209 element, depending on the status byte pointer.

Having received the status byte, the channel eats out the INF-K signal, which initializes the triggers 180 and 178, stopping the generation of signals UPR-A and RAB-A. Thus, all blocks 1 in the corresponding channels issue a status byte caused by operator intervention.

If during the initial sampling at node 30 an unstable connection of the channel with the subscriber is recorded vv.10 to busy the subscriber or the interface lines to which he is connecting, on the corresponding trigger 85 or 86, then at the moment the subscriber or interface lines are released, the status byte must be sent with the pointer WU finished,

At this moment, the contents of the trigger, on which the connection is not established, is copied to the corresponding trigger 83 or 84. Issue-. I’ve finished the status byte channel with the WU pointer similar to issuing the status byte with the WU pointer when the subscriber changes from the “Not Ready” state to the Ready state.

Claims (1)

11 The invention relates to computing and may be used in multi-wired computing systems when organizing common fields of external devices.  The purpose of the invention is to increase the utilization rate of the equipment. FIG.  1 shows a block diagram of the proposed device; in fig.  2schema node fixing initiative subscriber; in fig.  3 is a diagram of a node for determining the direction of communication channel subscriber; in fig.  4 is a diagram of a subscriber status byte request node; on league.  5 is a diagram of an output switch; a communication unit with a channel; in fig.  6 diagram of the interface signal generation unit; in fig.  7 is a diagram of a subscriber state allocation node; in fig.  8 diagram of the fixed connection fixing unit; in fig.  9 is a diagram of a node for determining the direction of communication of a subscriber channel; in fig.  10 is a circuit diagram of an input switch of a communication unit with a channel; in fig.  11 is a diagram of a subscriber address identification node; in fig.  12 is a diagram of a subscriber occupancy determination node in FIG.  13 is a diagram of an input switch of a communication unit with subscribers; in fig.  14 is an address decoder circuit; in fig.  15 is a diagram of a subscriber initiative allocation node; in fig.  16 diagram of the address request node; in fig. 17 diagram of the node definition of occupancy; in fig.  18 is a diagram of an output switch of a communication unit with subscribers.  The device consists of N units 1 of communication with a channel and M units 2 of communication with subscribers.  In addition, the device has a group of interface inputs and outputs of the channels - lines 3 and 4 and a group of interface inputs and outputs of subscribers of lines 5 and 6, as well as inter-block LINEs 7-27.  Each block 1 contains an output switch 28, an interface signal generation terminal 29, a subscriber initiative fixing node 30, a subscriber status allocator 31, a fixed communication node 32, a subscriber-channel direction determination node 33, an input switch 34 subscriber arvieca identification unit 35, subscriber occupancy unit P1 36, subscriber direction determination unit 37, channel - subscriber, and communication lines 38-62.  Each unit 2 contains an input switch 63, an address switch 64, a subscriber initiative allotment node 65, a subscriber state byte request node 66, an address request node 67, an employment determining node 68, an output switch 69, and a communication line 70-80.  The node 30 fixing the subscriber's initial number 1 (FIG.  2) contains groups of flip-flops 81-86, groups of elements AND 8798 and a group of elements OR 99 and 100.  The node 37 of the definition of communication alphabet is a subscriber (FIG.  3) contains groups of elements ШШ 101-105, groups of elements И 106-112, groups of flip-flops 113 and 114, group of elements 115-117 of delay and group of elements NOT 118 and 1 19. .  The subscriber status byte request node 66 (FIG.  4) contains the trigger 120, the element And 121, the element NOT 122 and the elements 123-126 delay.  The output switch 28 of the communication unit with the channel (FIG.  5) contains amplifiers, transmitters 127-136, a group of elements OR 137-147, a group of elements AND 148-172 and elements NOT.  Interface generation unit 29 (FIG.  6) contains priority shapers 175 and 76, address shaper 177, triggers 178-181, elements SH 182-184, elements AND 185194 and elements NOT 195-199.  The subscriber state allocation unit 31 (FIG.  7) contains decoders 200 and 201, triggers 202 and 203, element ШШ 204, and elements И 205-210.  Fixed connection fixing unit 32 (-Fig, 8) contains a group of triggers 211 and 212, a group of elements AND 213-216, and a group of elements HE 217 and 218.  Node 33 (Determining the subscriber-channel direction of communication (FIG.  9) contains priority shaper 219, groups of flip-flops 220 and 221, groups of elements ШИИ 222 and 223 ,.  groups of elements And 224-227 and groups of elements HE 228 and 229. .  The input switch 34 of the communication unit with the channel (FIG.  10) contains groups of amplifier receivers 230-237.  Subscriber address identification node 35 (FIG.  II) contains the subscriber address register 238, the subscriber address decoder 239, 2AO and 241 dial registers, HJM 242-244 element groups, OR 245 and 246 elements, And 247-250 element groups, 251 one-shot, And 251 element, and 252 element , the element is NOT 253 and the element is 254 delay.  The occupancy determination node 36 of abonent {fig.  12) contains the group of elements OR 255-257, the group of elements HE 258-261, the elements HE 262 and 263, and the group of elements AND 264 and 265, the Input switch 63 of communication with subscribers (Fig.  13) contains a group of U-amplifier-receivers 266-271, Address Decoder 64 (FIG.  14) contains the register 272 addresses, the decoder 273, the group of elements AND 274 and the element NOT 275.  A subscriber initiative allocation node 65 (FIG.  15) Sodgr 1 T decoder 276 elements And 277 and 278.  The address request node 67 (FIG.  16) comprises a trigger 279, a latch element 280, and elements 281 and 282, an occupancy detection node 68 (FIG.  17) contains an element. OR 283 and item NOT 284.  The output switch 69 of the communication unit with subscribers (FIG. 18) contains elements OR 285-291, a group of amplifiers-transmitters 292-297, a group of elements AND 298-309, an element NE 310 and an element 311 of delay.  The device works as follows. In the initial state, all the register circuits of the device are reset, since the decision to connect one channel or another to one or another group of subscribers has no common field, the corresponding block 1 is available for each channel, the corresponding block 2 is available to each group of common floor subscribers A logical connection of channels to the subscribers of the common field is made during the initial sampling signal sequence (channel initiative) or signal sequence entered by the subscriber- (initial ativ subscribers total gender).  A logical connection of the channel to the addressed subscriber of the common field during the initial sampling signal sequence is made under the following conditions; the addressed subscriber is part of the general gender; the addressed subscriber is not engaged in performing the I / O operation specified by another channel; interface lines,  To which the addressed subscriber is connected, Svobod1Sh, t. e.  at the moment, none of the channels is logically connected to the subscriber group interface lines, which includes the addressed subscriber.  If the addressed subscriber is not part of the common floor or this channel is forbidden to work with this subscriber by setting the corresponding dial register 240 and 241 of node 35 to the Restricted position, then this subscriber's address is not recognized, the VBR-K signal propagates through the I / O interface line The signal to allow the connection of a channel to a common field is not generated.  If the addressed subscriber is part of the general floor, but is currently busy, or the interface lines to which this subscriber is connected, then the green 36 generates an indication of the busy address of the addressable subscriber, node 29, by the presence of this sign, on behalf of the addressable subscriber leads signals of the initial sample to the end, by issuing a status byte to the channel with a pointer to Zero, the signal for connecting the channel to the common field by the node 37 is not generated.  The sequence of signals of the initial sampling begins with a channel on the line of the address interface, the subscriber is accompanied by the signal ADR-K, which are transmitted via line 4 to node 35 (Fig.  10) block 1.  Passing through receiver amplifiers 231 and 235, the subscriber’s address and the ADR-K signal on lines 58 and 59 arrive at node 35 (FIG.  P), where the address by the ADR-K signal through AND 248 elements and the OR element 242 is entered into address register 238 and decrypted.  The decoder 239 address has K outputs (by the number of subscribers in the general field), divided into M groups (by the number of groups of subscribers in the general field).  The first group includes K outputs, the second - K and t, d.  (by the number of subscribers in the general gender groups).  With the help of mounting jumpers, the outputs of the depotfrater 239 are combined with the inputs of a group of elements AND 249 and 250 in order to reduce the priority of subscribers in groups of the common field, and BTopwe inputs receive voltage levels from the outputs of registers 240 and 241 in the same order, With the help of dialers can be temporarily excluded (to make inaccessible for a given channel) from the general floor any number of subscribers.  If the address of the subscriber, who is not part of the common floor or temporarily excluded from it, is entered in register 238, then the outputs of all elements 249 and 250 contain low voltage levels, which corresponds to the non-address of the subscriber's address.  At the output of the OR element 246 there is also a low level, which, having passed the NE 253 element, allows the VBR signal transmitted by the channel to follow the ADR-K signal along the circuit: line 4, amplifier receiver 237 of switch 34, line 59, delay element 254 of node 35, element I 252, line 52, element OR 146 of switch 28 (FIG.  5), the amplifier-transmitter -136, line 3, If the address of the subscriber, who is part of the common floor and temporarily excluded from it, is entered in register 238, then the output of only one element And from the group of elements And 249 and 250 of node 35, the input of which receives a high level from the output of the decoder 239 corresponding to the address of the subscriber, there is a high level that corresponds to the identification of the address of the subscriber.  This level, passed through the circuit: one of the elements OR 24 and 244, the element ШШ 246 and the element NOT 253, blocks the propagation of the VBR-K signal through the element I 252.  The occupancy of the addressed subscriber included in the common field, and the occupancy of the interface line to which this subscriber is connected, is determined by node 36 (FIG.  12) A sign of the location of an addressed subscriber is the presence of a high voltage level at the output of the corresponding element AND 264 and 265, the inputs of which at this time receive a high level from node 35 (line 48) - a sign that the subscriber’s address is recognized, a high level from a node 32 (line 46) through the corresponding element NOT 259 or 261 - absence of the established communication of the addressed subscriber with this cable and high level from the nodes 32 of all units 1 (line 10) through the corresponding element YAK 258 or 260 - presence of the established communication of the addressable subscriber1 ; | with any other channel.  A sign of the interruption of the interface lines to which the addressed subscriber is connected is the presence at this time of a high level on the first or third inputs of the corresponding element OR 255 or 256 (lines 7 and 13).  During the busy subscriber or busy interface lines at the output of the element OR 257 (line 50) of the node 36 (Fig, 12) there is a high level, which in the node 29 (Fig, 6) sets the subscriber trigger 181 to one state by preparing node 29 on behalf of the addressed subscriber to complete the sequence of initial sampling signals, during which the status byte is sent to the channel with the pointer ZAN, VBR-K signal through AND 194 and OR 184 sets the RUD-A trigger 180 into one state And the trigger 179 ADR-A signals, as a result, in response to the VBR-K signal, the signal RAB-A comes from the output of the trigger 180 via line 38 through the OR 144 element and the amplifier-transmitter 134 of the switch 28.  The signal ADR-K through the element NOT 196 of node 29 blocks the output to the channel of the signal ADR-A from the output of the trigger 179 of generation of ADR-A.  The address of the subscriber, on behalf of which the sequence of signals for the: initial sample is continued, is entered in the address address register 238 of node 35.  In response to the RAB-A signal, the channel removes the ADR-K signal, as a result of which the subscriber's address along the circuit is output to the channel: register output 238 of node 35, line 51, element group AND 189, element group OR 182 of node 29, line 38, a group of elements And 169, elements 137-140 and amplifiers-transmitters 127-130 of the switch 28 and the signal ADR-A along the circuit: output of the trigger 179, element And 186 of node 29, line 38, element ШШ 143 and amplifier-transmitter 133 of the switch 28.  After receiving and checking the subscriber's address, the channel issues a command accompanying it with the UPR-K signal, which, having passed the receiver receiver amplifier 234 of the switch 34 and the AND element of node 29, sets the ADR-A output trigger 179 to the zero state, thereby terminating the ADR signal -A, and the trigger 178 generation UPR-A - in a single state.  The output of the UPR-K signal to the channel is blocked by the presence of the UPR-K signal, which through the element NOT 195 enters the input of the element 185 of the node 29.  In response to the removal of the ADR-A signal, the channel responds with the removal of the UPR-K signal, as a result of which a status byte is issued to the channel with the Charge indicator (third byte) and the UPR-A signal. The channel, having received a status byte, gives you The INF-K signal that has passed through the receiver amplifier 233 of the switch 34, AND element 191, and OR element 183 of node 29 sets the triggers 178, 180, and 181 to their initial state, thus completing the sequence of signals of the initial sample.  At the moment when the generation of the RAB-A signal is stopped, the one-shot 251 of node 35 produces a single signal, which returns to the initial state the address address register 238 of node 35.  Simultaneously with the issuance of the status byte to the channel with the pointer Zan, the signal from the output of the And element 207 of the node 31 through the corresponding element 96 and 98 of the node 30 (Fig.  2) establishes in one state the trigger corresponding to the address of the subscriber from the group of triggers 85 and 86, fixing the fact of the unsuccessful communication of the channel with the addressed subscriber.  If the address of the subscriber who is part of the common floor is temporarily not excluded from the register 238 of node 35, is free from performing an I / O operation, and the interface lines to which it is connected are free, then at the outputs of the corresponding AND group elements And 249 and 250 and the corresponding element OR 243 or 244 node 35 there are high levels, t. e.  the address of the subscriber is identified and the group of subscribers of the general gender, which includes the addressable subscriber, is determined; at the output of the OR element 283 of the node 68 of that block 2, which, by its inputs 5 and outputs 6, is connected to the group of subscribers, which includes the addressed subscriber, there is a low level, t. e.  interface lines are free; at the outputs of the corresponding elements NOT 217 and 218 of the node 32 of all blocks 1 - high VDOB none, t. e.  the addressed subscriber is free from performing an I / O operation; at the output of the element CMM 257 of node 36 there is a low level that blocks the operation of node 29; at the output of the corresponding element NOT 262 or 263 node 36 - a high level, t. e.  addressed subscriber and interface lines are free.  As a result, the signal in the circuit: the output of the amplifier-receiver 237 of the switch 34, line 59 establishes at node 37 the corresponding trigger 113 or 114 through its input; logic in one state, which is a sign of connecting this channel to the subscriber group interface lines, which includes the addressed subscriber.  A high level from the output of this trigger goes through the corresponding element OR 101 or 102 to line 7 of the priority system, thereby prohibiting through the elements NE 118 and 119 nodes 37 of all subsequent blocks 1 to install similar triggers in one state when other channels access the subscriber group , which includes the addressed subscriber, to the first inputs of the corresponding elements AND 148-165 of the switch 28, allowing the transmission to the channel of all interface signals from the addressed subscriber, which come from the corresponding block 2 n the second inputs of these AND gates via line 8 through an OR gate 105 to node 37 of delay elements 115-117 input string to generate a timing chart of signals ADR-K, K-HDR and FBG-K, an OR gate 285 alternation switch 69 (FIG.  18) of the corresponding block 2 through line 80 to the input of the node 68 (FIG.  17), as a result of which a sign of the interface lines of the common field subscriber group is formed, which includes the addressable subscriber, which is provided via line 25 to all blocks 1 to prevent other channels from connecting to this subscriber group during the initial sample signal sequence, and also the outputs of the corresponding elements And 308 and 309.  switch 69, respectively.  unit 2 via line 26, allowing the transmission of interface signals from the initiator channel to a group of subscribers of the common field that includes it. addressed subscriber.  Thus, the channel that started the sequence of signals of the initial sample is available to the addressed subscriber, and to the addressed subscriber the initiator channel, t. e.  lines — the channel interface through the unit and the corresponding unit 2 are connected to the interface lines to which the addressable subscriber is connected.  The address 6oHeHfa in 1CHIN-K and the signals ADR-K, RVB-K and VBR-K through block 1 and the corresponding block.  2 in the same sequence in which they are issued by the channel, arrive at the inputs of the addressed subscriber, who identifies his address and enters the channel through blocks 2 and 1 of the signal RAB-A.  From now on, the switch 34 of block 1 and the switch 69 of block 2, the switch 63 of block 2 and the switch 28 of block 1 work in the mode of retransmitting interface signals from channel to subscriber and vice versa.  The remaining nodes of blocks 1 and 2 perform their functions.  B node 31 (FIG.  7) when the signals ADR-K and VBR-K-flip-flop 202 of the initial sample coincide, through element I 205 it is set to one state, which allows the UPR-K signal during command issuing a command to the subscriber through element I 206 to set the input-output trigger 203 to one state if this command is associated with data exchange.  Setting the trigger 203 to one is blocked by a low level from the output of the OR element. 204, if the channel transmits to the subscriber a command that is not associated with the exchange of data.  Allocate these commands, the decoder 201 of node 31.  In response to the command, the subscriber enters the status byte channel, which in node 31 enters the input of the decoder 200 to highlight the status bytes with signatures Zanto, Attention, the slave terminated and the subscriber state zero byte.  Signal on c. On the input of the element And 210 corresponds to the presence of the zero byte of state, at the output of the element I207 of the state byte with the pointer Zan, the output of the element And 208 is the status byte with the pointer. Attention, at the output of the element 209, the presence of the state byte It ended 12 610 If during the sequence of initial sampling signals, the addressed subscriber, in response to a command associated with data exchange, causes a zero status byte, which corresponds to their readiness to perform an I / O operation, then the signal from the output of the And 210 to l SRI 45 through the corresponding AND gate 213 and 215 assembly 32 (FIG.  8) sets the trigger 21i or 212 to one state, which corresponds to fixing the established connection of the channel with the addressed subscriber.  From this point on, the addressed subscriber is occupied with respect to all other channels.  The sign of subscriber busyness is developed by the assembly assembly of the outputs of the corresponding elements HE 217 218 of all nodes 32 blocks 1.  and the set commit commit trigger is in a single state until the addressable element completes the I / O operation, issuing a status byte to the channel with a VU terminator.  The signal from the output of the AND element 209 through the corresponding AND element 214 or 216 sets this trigger to the zero state.  After the channel has received the status byte with the pointer, the subscriber has finished the subscriber removes the RAB-A signal, completing the I / O operation.  At the moment when the subscriber terminates the RAB-A signal, the one-shot 251 generates a single signal that resets the address register 238 and the triggers 113 and 114.  The sequence of signals entered by the subscriber is caused by a request for data transmission, when it is carried out in a multiplexed mode, or for the transmission of a state byte in the following cases: to transmit the stored state; to inform the channel that the subscriber who was busy during the previous call is free; dp reading a status byte to the channel with a pointer to the terminator when terminating the operation; for a byte to the channel, the state caused by the operator's intervention (in the status byte is a pointer Attention or the pointer terminates when the subscriber transitions from Not Ready to the State).  If the subscriber is accessed from the HecKojJbKHX channels, the service requirement associated with data exchange in multiplexed mode is issued only to the channel that started the corresponding input / output operation, and the service requirement caused by operator intervention must be issued during all channels to which this subscriber is available.  A subscriber who needs service from the channel issues a TRB-A signal.  According to a single TRB-A signal, it is impossible to determine the address of the subscriber, and hence the channel that is to provide service to this subscriber.  To determine the address of the subscriber, certain schemes of block 2, to the input of which a TRB-A signal arrives, take some of the functions of the I / O channel.  The TRB-A signal through the amplifier-receiver 271 of the switch 63 (FIG.  13) and the element And 282 node 67 (FIG.  16) sets the request request trigger 279 to one.  A high level from the trigger output 279 through the switch element OR 288 69 (. FIG.  18) and the amplifier-transmitter 294 enters the subscriber's input on the rights of the RVV-K signal, and through the delay element 311, the ШШ 287 element and the amplifier-п (transmitter 293 - on the rights of the VBR-K signal).  In addition, a high level from the output of the trigger 279 enters the input of the AND 281 element and through the OR element 283 of the node 68 (FIG.  17) to the inputs of all blocks 1 as an indication of the subscriber group interface lines, which includes this one. subscriber, to prevent any channel, on his initiative, from connecting to this group of common-field subscribers.  In response to the VBR-K signal, the subscriber issues a RAB-A signal and an address on the interface line, accompanied by an ADR-A signal.  The signal RAB-A through the amplifier-receiver 267 of the switch 63 is fed to the input of the element OR 283, confirming that the interface lines are busy, and the address of the subscriber through the amplifiers of the receivers 268 and the group of elements AND 274 by the ADR-A signal from the output of the amplifier-receiver 270 is entered into the register 272, the address is decrypted, and the result of the decryption from the output of the decoder 273 via line 20 is fed to the inputs of all 3612 blocks 1.  At the same time, the ADPA signal, through the AND element 281 and the delay element 280, via lines 24 is fed to the inputs of all blocks I and through the delay element 126 to the input element I 121.  In node 33 (FIG.  9) for each block 1, the result of deciphering the address of the subscriber via line 11 and information about the established connections of the channel with the subscribers of the common field from node 32 via line 46 arrive at the inputs of the AND elements 226 and 227 in a certain sequence.  If the established connection of the channel with this subscriber is fixed, then in the node 33 of this block 1 the corresponding trigger 220 or 221 of determining the direction of communication is set to one state.  The high level from the output of this trigger through the shaper 219 enters the node € U1 33 to the input of the corresponding element AND 106 or 108 and through the element NOT 228 or 229 to the input of element AND 121, blocking its operation.  A high level from the common output of the driver 219 enters the switch 28, where through the OR elements 147 and 145 and the amplifier-transmitter 135 is output to the channel with the rights of the TRB-A signal.  Thus, a channel is defined from which it is required.  service, and issued him a request for service.  The channel, having received the TRB-A signal, carries the VBR-K signal, which, through amplifier-receiver 237, the corresponding AND elements 106 and 108 of the group and OR 103 and 104 sets in one state a trigger from the group of triggers 113 and 114, which is a sign connecting this channel to the group of subscribers of the general gender, which includes the subscriber who issued the TRB-A signal.  As a result of the connection, the RAB-A signal and the address, followed by the ADR-A signal, issued by the subscriber, enter the channel. .  At the same time, the address of the subscriber is signaled by the ADR-A signal through the elements AND 247 and the elements of the ШШ 242 and is entered and the address register 238 is decoded.  The channel identifies the address of the subscriber and generates a signal UPR-K, which is fed to the input of the subscriber.  During this sequence of signals, the subscriber issues a SIGIAL INF-A channel, offering or requiring a very rare inLormation bow, or an UPR-A signal, which is a pre-broadcast status message.  Xley abopé Since the NIF-L signal is sent, information is exchanged, and the device operates in the passive repeater mode.  If the subscriber issues a UPR-A signal, followed by a status byte, then node 31 schemes of all possible status bytes are allocated a status byte with a pointer to the terminator, which means in this case the end of the I / O operation.  Then, the signal from the output of the element AND 209 through the corresponding element AND 214 or 216 brings the trigger, on which the connection of the channel with the given subscriber was fixed, to the initial state.  After the channel has received a status byte, the subscriber removes this status byte and the SAR-A and RAB-A signals, completing the sequence of signals entered by the subscriber. At the end of the RAB-A signal, a single signal from the output of the one-shot 251 returns to its initial state the address register 238 and the channel connection trigger at node 37. From this point on, the subscriber is free for all channels that is available, and the RAB-K signal is output to this the common field subscriber group from the output of the element OR 285 through the element PE 310, element OR 286 and the transmitter-amplifier 292; Intervention (initiative) of the operator may cause the subscriber to go from Not Ready to Ready state, as a result of which nor with the decree Telem slave left off or vyrabot ku asynchronous signal, whereby the subscriber circuit formed buy state with arrows Attention.  The formation of these bytes causes a request to service the subscriber, which should be issued to all channels accessible to the subscriber, in response to the TRB-A signal, node 67. works out and through the switch 69, gives the subscriber signals to the RVB-K and VBRVV responding to these signals, the subscriber issues a RAB-A signal and his address, accompanying him. by the ADR-A signal, the Address is entered into the register 272, decrypted, and the result of the decryption, together with the ADR-A signal, passed through AND 281 and the delay element 280, arrive at the corresponding inputs of all blocks 1.  Since in this case the connection of the channel with this subscriber is not fixed in any of the blocks 1, the desired channel (the direction of the communication subscriber-channel) is not defined, t. e.  all the triggers 220 and 22 in the caldera I block are in the initial state. As a result, the inputs of the element 125 receive high levels, allowing the ADR-A signal from the output of the delay element 280 through the delay element 126 and the And element 121 to set the byte request trigger 120 state to single state.  A high level from the output of this trigger opens the element I and the signal ADR-A is fed to the input of the subscriber who issued the signal TRB-A, as the signal UPR-K, the Subscriber removes the signal ADR-A, stopping it. the most output of the UPR-K signal from the output of the I element. In response to a reset of the UPR-K signal, the subscriber issues a status byte with an Attention pointer or a HU finished depending on the operator’s actions, accompanied by its U11P-A signal, the Status Byte is fed to the decoder input 276, and the result of the decryption through the AND element 277 (TU has ended) or the AND element 278 (Attention) is fed to the corresponding inputs of all blocks 1, the UPR-A signal is given to the subscriber on the rights of the INF-K signal, the Subscriber removes the UPR-A and PAK signals And, ending the sequence of signals.  The address register 272 through the NOT element 275 and the state byte request trigger 120 through the NOT element 122 are reset to the initial state by removing the RAB-A signal.  During this sequence of signals, the result of deciphering the subscriber's address and status byte is fed to the inputs of node 30 (FIG.  2) each block 1, as a result of which in each node 30 the trigger corresponding to the address of the subscriber is set to one, if the Attention indicator is present in the status byte or the SL terminator is terminated.  Citals from the outputs of the triggers of the listed groups are fed to the inputs of the formers 175 and 176.  The unit state of any of these triggers is a sign of the beginning of the generation by the node 29 of the signaling sequence entered on behalf of the subscriber, during which a status byte is issued to the channel with an Attention pointer or a terminator.  A low level from the output of the imaging unit 175 is output to the channel as a TRB-A signal, and simultaneously with the output of the imaging unit 177, the address is fed to the inputs of the AND elements 166-169.  Having received the TRV-A signal, the channel outputs a VBR-K signal that sets the trigger RAB-A 180 and the ADR-A trigger 179, and as a result, the RAB-A signal, the subscriber's address and the signal ADR-A.  At the same time, a status byte pointer is generated at node 29.  The high level at the output of the And 188 element corresponds to the pointer of the slave ended, and at the output of the And 187 element to the pointer. At node 35, the address of the subscriber is entered into address register 238 and is decoded.  The channel identifies the address and issues an UPR-K signal, which, through element I 190, resets trigger 179, thereby terminating the generation of the ADR-A signal, and sets up trigger I78 of UPR-A output, which is blocked by a low level from the element output. NOT 195.  The channel responds to the removal of the ADR-A signal by removing the UPR-K signal, as a result of which a status byte is output to the channel with a corresponding pointer and an UPR-A signal.  In the node, the 31 byte of the state is decrypted, with the result that AND 208 or 209 from the output, depending on the state byte pointer, the signal in node 30, through the corresponding AND element, returns to the initial state the trigger, the initiator of the described sequence of signals.  Having received the status byte, the channel generates an INF-K signal, which reset the triggers 180 and 178, terminating the processing of the UPR-A and RAB-A signals.  Thus, all blocks 1 in the corresponding channels issue a status byte caused by operator intervention.  If, during the initial sampling, node 30 has an unidentified connection of the channel with the caller. 1, subscriber dusts 1-1 or interface lines to which it is connected, on the corresponding trigger 85 or 86, then at the moment the subscriber or interface lines are released into the channel, the status byte must be outputted with the pointer of the terminator, At this moment the trigger content, on which an unassigned link is fixed, is rewritten into the corresponding trigger 83 or 8A.  In-  The state byte channel with the pointer of the terminator is the same as the output of the status byte with the index of the terminator when the subscriber from the state is ready to goto comrade.  Claim 1.  A multichannel device dp interface of subscribers with computer I / O channels, containing a group of communication units with a channel and a communication unit with subscribers; the first and second outputs of communication units with a channel of a group are connected respectively to the first and second inputs of a communication unit with subscribers, the first output of which is connected to the first inputs of communication units with a channel of the group, the second inputs of which are connected to the second output of the communication unit with subscribers, the third and fourth outputs of which are connected respectively to.  third and fourth.  the inputs of the communication units with the channel of the group, the third outputs of which are connected with their fifth inputs, the fourth inputs and the sixth inputs of the communication units with the channel of the group are connected respectively with the interface inputs and outputs of the channels, the third input and the fifth output of the communication unit with subscribers are connected respectively with interface outputs and subscriber inputs, the fifth output of each previous communication unit with a group channel is connected to the seventh input of each subsequent communication unit with a group channel, and the communication unit with subscribers contains an input signal an ator, an output switch, an occupancy node, an address decoder, an address request node, the input switch input interface is connected to the third input of the communication unit with subscribers, the fifth output of which is connected to the output switch output interface, the channel connection output of which is connected to the input of the presence of the channels of the occupancy node, the output of the occupation sign of which is connected to the first output of the communication unit with subscribers, the second output of which is connected to the output of the attribute of the request node address request, the sign of the vacancy sign of which is connected to the input of the sign of the vacancy of an occupancy node, the sign of the operation of which is connected to the output of the sign of the input switch and the sign input of the address decoder, the address output of which is connected to the third output of the communication unit with subscribers The fourth output of which is connected to the interface output of the input switch, the output of the address identifier of which is connected to the inputs of the address identifier of the address decoder and address node of the address, in the progress of the presence of the request attribute of which is connected to the inputs of the presence of the attribute of the request for determining the occupancy node and the output switch, the input of interface signals and the connection signs of the channel of which are connected respectively to the first and second inputs of the communication unit with subscribers, the information output and the output of the demand for servicing the input switch connected, respectively, to the information input of the address decoder and the service request input to the address request node, and each communication unit with a channel of the group contains an input switch, output switch, interface signaling node, subscriber state node, subscriber-channel direction determination node, communication-direction direction node, subscriber-specific node, subscriber address identifying node, subscriber’s fixing node a connection, the interface input of the input switch is connected to the sixth input of the communication unit with a channel, the fourth output of which is connected to the interface output of the output switch, the control output of which is connected to the byte input PICs audio bonds la isolate local state and the control node input The sensing subscriber addresses, an information input coupled to an information output of the input switch, output primary sampling feature of which is connected to the inputs of the initial conditions; sampling node identifying the subscriber's address and node determining the direction of communication channel - subscriber, interface output of the input switch and the output of the attribute of the initial sample of the node determining the direction of communication channel subscriber connected to the first output of the communication unit to the channel, the second output of which is connected to the output of the connection of the node connection determine the direction of the communication channel - the subscriber, the priority output of which is connected to the fifth output of the communication unit with the knot, the third and fourth inputs of which are connected respectively to the address input of The evil of determining the direction of communication is the subscriber-channel and the interface input of the output switch, the control input of which is connected to the output of blocking the input switch, the output of the sign of the unrecognized address of the subscriber's address identification node, the output of enabling the connection of the direction-determining node of the communication channel the node of determining the direction of communication the subscriber-channel, the input of the request attribute and c. the established communication stroke of which is connected respectively to the second input of the communication unit with the channel and the output of the established communication of the fixed connection node, the output of the unspecified communication of which is connected to the third output of the communication unit with the channel, the first and fifth inputs of which and the output connection of the fixation node of the established communication is connected to the input of the busy condition of the subscriber occupancy control node, the output of the idle signs of which is connected to the input of the signs of the absence of the communication direction determining node of the channel - the subscriber, the entry of the service request features and the entry of the identification signs of the subscriber of which are connected respectively to the code of the signs of the demand for servicing the subscriber direction determination node - the channel and the output of the subscriber identification signs of the subscriber's address identification node, the reset output of the subscriber's address identification node the node of the direction of communication subscriber - the channel and the node of the definition of the direction of the sleep cpnal - the subscriber, the output of the address of the node of the identification of the address of the subscriber is connected to the input the recognition of the location of the fixation node of the established communication and the input of the identification of the address of the subscriber identification node, the output of which and address1 of the identification address of the subscriber's address are connected to the information input of the interface generation node, the output of which is connected to the input of the attributes of the interface service of the output comm the output of the features of the interface signals of the input switch is connected to the information input of the interface signal generation node and the information input of the allocation node ab onent, the output of the readiness attribute is connected to the input of the readiness attribute of the fixed connection node, priority inputs of the subscriber occupancy detection nodes and the communication direction determination node channel — the subscriber is connected to the seventh communication unit input with a channel The purpose of using the equipment utilization factor is to introduce additional communication units with subscribers, the first to third inputs of which and the first to fifth exchanges of which are connected respectively to neJjBbiM and second outputs ties with the channel of the group, interface outputs of the respective subscribers, the first, second, third and fourth inputs of communication blocks with the channel of the group and interface inputs of the respective subscribers, the fourth inputs of additional communication blocks with subscribers are connected to the sixth outputs of communication blocks with the channel groups, the eighth and ninth inputs of which are connected respectively to the sixth and seventh outputs of additional communication units with subscribers, and each communication unit with subscribers further comprises an initiative allocation node The subscriber s and the subscriber state byte request node, the information output of the input Switch is connected to the information input of the subscriber's initiative allocation node, the readiness output and the output of the initiative flag of which are connected. respectively, with the sixth and seventh outputs of the communication unit with subscribers, the output of the state of the co-coupling switch oaiiTa is connected to the inputs of the status byte of the allocation node of the subscriber’s initial initiative, the subscriber’s status of the request subscriber, the output of the request sign which is connected to the input of the request sign of the request node of the subscriber’s state byte, the output of the sign (which is connected to the input of the presence of the request sign of the output switch, the outputs of the sign of the work and the address identifier of the input switch and the fourth input of the communication unit with subscribers is connected respectively to the inputs of the operation flag, the address identifier and the condition of requesting the request of the subscriber state request byte node, the output of the request attribute of which is connected to the input of the subscriber initiative selection node request, and each communication unit with the channel the group additionally contains a node for fixing the initiative of the subscriber, the outputs of the sign of work and the sign of readiness of which are connected respectively to the inputs of the sign of work and the sign of readiness of the node producing The interface's s, whose address and status identification inputs are connected respectively with the output of the identification of the address node of the subscriber's address and the output of the operation sign of the subscriber's allocation node, the inputs of the initiative and unspecified communication, the address input, the readiness sign input and the occupation sign input the subscriber's initiative fixing node is connected to the ninth, fifth, third, eighth and first inputs of the communication unit, respectively, with the channel, the sixth output of which is connected to the output of the request condition, 2, Device Property according to claim.  1, characterized in that the subscriber initiative fixing node contains three groups of triggers, six groups of elements AND, a group by elements OR, and the output of the sign of operation of the node is connected to the outputs of the first group of triggers, whose inputs are connected to the outputs of the corresponding elements of the first and second groups, the output of the readiness attribute of the node is connected to the outputs of the second group triggers, all of which are connected to the outputs of the corresponding AND elements of the third group and the corresponding OR elements of the group whose inputs are connected to the element outputs Both the fourth and fifth groups, the node address identification input is connected to the first inputs of the first, third and test groups, the outputs of the third and sixth elements of the groups are connected to the inputs of the corresponding triggers of the third group, the outputs of which are connected to the first inputs of the co. The corresponding elements AND of the fourth group, the second and third inputs of which are connected respectively to the input of an unestablished communication and the input of the attribute of a node, the input of the sign of which is connected to the second inputs of the elements of the first, third and sixth groups, the input of the attribute of the initiative of the node is connected to the first inputs elements And the second group, the second inputs of which are connected to the address input of the node and the first inputs of elements And the fifth group, the second inputs of which are connected to the input of the sign of readiness of the node, 3, the device according to claim 1, characterized in that the subscriber initiative selection node contains a decoder and two AND elements, and the information input of the Denifferator node is connected to the first inputs of the AND elements, the input of the status byte feature of the node is connected to the second inputs of the AND elements, the third inputs of which are connected to the input of the node request sign, readiness outputs and initiative sign are connected to the outputs of the first and second elements I. 0 4. The device according to p. I, of which is that the request node of the subscriber’s state byte contains a trigger, two delay elements, three AND elements, an NOT element, and the inputs 5 feature request and conditions required. The NIN of the node request is respectively connected to the first and second delay elements connected to the inputs of the first element I, whose output and element output are NOT connected to the trigger inputs, the output of which is connected to the output of the node request sign and the first inputs of the second and third elements AND whose outputs are connected to way out 5, the node service feature, the inputs of the status byte flag, the operation flag and the address identifier of which are connected respectively to the second input of the second element AND, the input of the element NOT and the second input of the third element I. IPUt.Z 7C 1lg. Phage 7 59 77 76