KR19990056234A - Time switch and link matching device of TOLL exchanger - Google Patents

Abstract

The present invention relates to a time switch and a link matching device of a TOLL exchanger. The present invention relates to a TOLL exchanger using a routing message that is additionally provided with a TLIA and an OTRD and can control routing to a specific TLIA among two TLIAs. Aiming to control switching of call processing paths to accepted direct connection subscribers; 2 timeslot exchange boards 0 and 1 (TSIA0) that are applied to the voice call memory 100a of the memory control and maintenance board (CMMA; , TSIA1); Call memory 100a sequentially storing PCM data for voice signals applied from the timeslot exchange boards 0, 1 (TSIA0, TSIA1), and address information of PCM data recorded on the call memory 100a. And a control memory (100b ') for storing the route setting message and storing the path setting message, and performing a physical connection to the communication channel, and then transferring the PCM data stored in the communication memory (100a) to the physically connected communication channel. And a holding board 100 '; Two time switches and link matching boards 0 for restoring the PCM data applied from the call memory 100a to a voice signal in a state where a physical connection to the call channel is made by the memory control and holding board 100 '. 1 (141, 142) and; An optical transmitter / receiver circuit board 0 connected to the time switch and link matching boards 0, 1 (141, 142) to convert the voice signal into an optical signal and apply the same to the central data link (CDL) so that the voice signal is spatially divided. A time division switch 2 including 1 (161, 162); When the relay call or direct access subscriber call is generated, the memory control and maintenance board of the time switch and link matching boards 0, 1 (141, 142) based on the time slot exchange board routed to the relay call or direct access subscriber call ( Path setting data in which information about a time switch and a link matching board to be physically connected to the timeslot exchange board by 100 'is recorded in the control memory 100b' of the memory control and maintenance board 100 '. Is composed of a time division switch processor 200 '.

Description

Time switch and link matching device of TOL switch

The present invention relates to a time switch and link matching device of a TOLL switch, and more particularly, to a time switch and link matching device of a TOLL switch configured to accommodate a direct connection subscriber of 1024 channels in the TOLL switch.

As is well known, the TOLL switch is a switch developed to provide call processing services for relay calls, and the time switch and link matching device employed to switch the call processing path for the relay call in the TOLL switch is shown in FIG. As shown in 1.

1 is a view showing the main block configuration of the time switch and link matching device of the conventional TOLL switch.

As shown in the figure, the time switch and link matching device of the TOLL exchanger include two pieces of TSIA0, TSIA1 (120, 121), one piece of CMMA (100), one piece of TLIA (140), and one piece of OTRD. And a time division switch processor (200) and a time division switch processor (200). The TSIA0, 1 (120, 121) is a match exchange processor (ASP; not shown) of a match exchange subsystem (ASS; not shown). Receives the relay call received from the) and performs the function of applying the voice signal according to the corresponding relay call to the call memory (100a) of the CMMA (100) by converting the PSM data based on 1,024 timeslots, the CMMA (100) Is composed of a call memory (100a) for sequentially storing the PCM data applied from the TSIA0, TSIA1 (120, 121) and a control memory (100b) for storing address information about the call memory (100b) for call processing Function to provide a path.

In addition, the time division switch processor 200 performs a function of controlling the CMMA (100), the TLIA 140 extracts a clock from the voice signal is read and applied from the communication memory (100a) to the relay call The OTRD 160 converts the voice signal into an optical signal and applies it to a central data link (CDL).

In addition, the time division switch processor 200 uses the data as shown in FIG. 2 in the control memory 100b of the CMMA 100 so that the CMMA 100 can perform a switching operation according to the call processing path setting. The configured routing data is recorded. According to the routing data, a total of 16 bits are configured, 15 and 14 bits correspond to a conversion state, 13 and 12 bits correspond to a TLSI number to which a physical connection is made, 11, 10 bits are the code corresponding to the TSIA number to which the voice signal is transmitted, 9-5 bits are the code corresponding to the channel number to be connected, and 4-0 bits are the code corresponding to the subhighway number to be connected. do.

In particular, the time division switch processor 200 records a '00' code in 13 and 12 bits of the routing message in order to allow a call applied from the TSIA0 (120, 121) to be applied to the TLIA 140, and other than a voice signal. In order to apply a ring tone, for example, a ring back tone, to the TLIA 140, 13 and 12 bits of the routing message are recorded as '10', and the CMMA 100 is set to the idle state. To do this, record 11 code in 13 and 12 bits of the routing message.

Here, when the routing message is recorded in the control memory 10b, the CMMA 100 makes a physical connection according to the call processing path based on the routing message, where 13 and 12 bits of the routing message are stored. If it is recorded as '00', the TLIA 140 makes a physical connection to the call channel.

Thus, when the voice signal according to the relay call read out from the call memory 100a is applied to the TLIA 140, the TLIA 140 restores the PCM processed voice signal to the original voice signal and the OTRD ( 160, the voice signal is converted into an optical signal by the OTRD 160, and then is applied to the central data link unit and applied to the network control subsystem (INS (not shown)).

In the case of the TOLL exchanger, only the call processing function for the relay call is designed, but in order to improve the utilization efficiency of the TOLL exchanger, a direct connection subscriber (eg, telephone number guide 114, fire signal 119, crime) Acceptance of the signal 112, etc. is urgently required.

Accordingly, the present invention has been made in view of the above circumstances, and is additionally provided with a TLIA and an OTRD and accommodated in a TOLL exchanger by using a routing message that can control routing to a specific TLIA among two TLIAs. It is an object of the present invention to provide a time switch and a link matching device of a TOLL exchanger that enables switching control of a call processing path for a direct subscriber.

According to one embodiment of the present invention for realizing the above object, when a voice signal according to a relay call or a direct access subscriber call is input, two pieces of PCM are processed and applied to the call memory of the memory control and maintenance board (CMMA). Timeslot exchange boards 0 and 1; A control memory for sequentially storing PCM data of voice signals applied from the timeslot switching boards 0 and 1, and address information of PCM data recorded on the call memory, and a path setting message; A memory control and maintenance board configured to transmit the PCM data stored in the communication memory to the physically connected communication channel after performing physical connection to the communication channel; Two time switches and a link matching board for restoring the PCM data applied from the communication memory to a voice signal in a state where a physical connection to the communication channel is made by the memory control and maintenance board; An optical transmitter / receiver circuit board 0 and 1 connected to the time switch and link matching boards 0 and 1 so as to convert a corresponding voice signal into an optical signal and apply the same to the central data link CDL so that the corresponding voice signal is spatially divided. A time division switch configured to; When the relay call or direct access subscriber call is generated, the time is changed by the memory control and maintenance board of the time switch and link matching boards 0 and 1 based on the time slot exchange board routed to the relay call or direct access subscriber call. A time switch and link matching device of a TOLL exchanger comprising a time division switch processor for recording routing information in which information about a time switch and a link matching board to be physically connected to a slot exchange board is recorded in a control memory of the memory control and maintenance board. Is provided.

According to the present invention having the above configuration, it is possible to accommodate a trunk of 1024 channels and a direct access subscriber of 1024 channels.

1 is a block diagram illustrating a main block configuration of a time switch and a link matching device of a conventional TOLL exchanger;

2 is a view showing the configuration of routing data applied in the time switch and link matching device of the conventional TOLL switch;

3 is a block diagram illustrating a main block configuration of a time switch and a link matching device of a TOLL exchanger according to an embodiment of the present invention;

4 is a view showing the configuration of routing data applied in a time switch and a link matching device of a TOLL switch according to an embodiment of the present invention;

5 is a flowchart illustrating the operation of a time switch and a link matching device of a TOLL exchanger according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: Time Switch and Link Matching Device (TSL),

2: Time Switch (TSW; Time Switch),

100,100 ′: Control Memory and Maintenance Board Assembly (CMMA),

100a: call memory, 100b, 100b ': control memory,

120,121,120 ', 121': Time Slot Interchange Board Assembly (TSIA),

140, 141, 142: Time Switch and Link Interface Board Assembly (TLIA),

160,161,162: Optic Transmitter and Receiver Daughter Board Aeeembly,

200,200 ': Time Switch Processor (TSP).

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a block diagram illustrating a main block configuration of a time switch and a link matching device of a TOLL switch according to an embodiment of the present invention, and FIG. 4 is a time switch and link matching device of a TOLL switch according to an embodiment of the present invention. A diagram showing the configuration of routing data applied in.

Here, the components that perform the same functions as the components shown in FIG. 1 among the components shown in FIG. 3 are given the same reference numerals as in FIG. 1, and detailed description thereof will be omitted.

In FIG. 3, reference numerals 120 'and 121' denote the CMMA by converting the voice signals for the relay call and the direct access subscriber call applied from the matching exchange processor (ASP) (not shown) based on the 1024 time slots. 100 ') and TSIA0 and TSIA1 applied to the call memory 100a, and 141 and 142 are the PCM data when the data stored in the call memory 100a is outputted by the TSIA0 120' and TSIA1 121 '. Are TLIA0 and TLIA1 extracting a clock of the TLIA0 120TL and recovering the audio signals applied from the TSIA0 120 'and the TSIA1 121'. .

Further, reference numerals 161 and 162 are connected to the rear ends of the TLIA0 141 and TLIA1 142, respectively, to convert electrical voice signals outputted from the TLIA0 141 and TLIA1 142 into optical signals to convert them into optical signals. OTRD0 and OTRD1 transmitted to (CDL), and 100 'allows a call input from TSIA0 120' to be transmitted to TLIA0 141 based on routing data recorded in control memory 100b '. The call entered into TSIA1 121 'is a CMMA for transmission to the TLIA1 142.

Reference numeral 200 'denotes time division for generating predetermined routing data based on call information applied from a matching exchange processor (ASP) and recording the routing data generated in the control memory 100b of the CMMA 100'. It is a switch processor.

Particularly, in the present invention, if the time division switch processor 200 ′ determines that the path of the call generated based on the call information from the matching exchange processor (ASP) is set to TSIA0, the call path is set to the TLIA0 141. As shown in FIG. 4, 13,12 bits of the routing data are recorded as '00', and when the path of the call is determined to be set to TSIA1, the corresponding routing path is set to the TLIA1 142. Record 13, 12 bits of '01'.

Next, the operation of the time switch and the link matching device of the TOLL switch according to an embodiment of the present invention will be described in detail with reference to the flowchart shown in FIG. 5.

First, when a call is generated from any direct connection subscriber or relay line accommodated in the TOLL switch (step 300), the matching exchange processor (ASP) of the matching exchange subsystem (ASS) to which the direct connection subscriber or relay line is physically connected is connected. Information about the call, ie call / call number, call / call class, conversion status, TLIA number, TSIA number, channel number, subhighway number, etc. required for time division switching is generated and the call information is generated. To the time division switch processor 200 'of the time switch and link matching device (TSL) 1 (step 302).

Accordingly, the time division switch processor 200 'determines whether the path of the call is set to TSIA0 (120') based on the TSIA number information among the call information (step 304). As a result, the path of the call is TSIA0 (120). (YES in step 304), the routing data is generated based on the call information applied from the matching exchange processor (ASP), and the routing data is composed of 16 bits as shown in FIG. 15 and 14 bits are conversion codes indicating conversion status, 13 and 12 bits are TLIA codes indicating TLIA numbers to which the call channel is physically connected, 11 and 10 bits are TSIA codes indicating routed TSIA numbers, and 9 to 5 bits. Is a channel code indicating a channel number in the routed TLIA, and a 4-0 bit is composed of a subhighway code indicating a subhighway number, and in this case, the time division switch processor 200 '. It is written in the control memory (100b of) the CMMA (100), by writing the bits 13,12 of the route setup data '00' (step 306).

Accordingly, the CMMA 100 'makes a physical connection to the call channel based on 13 and 12 bits of the routing data recorded in the control memory 100b'. In this case, the 13 and 12 bits Since it is' 00 ', the CMMA 100' makes a physical connection to the call channel to the TLIA0 141 (step 308).

After the physical connection to the call channel is made through the above step, if a voice signal for a relay call or a direct access subscriber call is input to the TSIA0 (120 ') (step 310), the TSIA0 (120') is input to a 1024 timeslot. Processing the voice signal based on PCS (Pules Code Modulation) and applying the corresponding PCM data to the call memory 100a of the CMMA 100 ', and the call memory 100a sequentially stores the corresponding PCM data; At the same time, the CMMA 100 'stores the information on the address where the PCM data is recorded in the control memory 100b' (step 312).

Then, the CMMA (100 ') is the PCM data stored in the call memory (100a) based on the address information and the routing data for the PCM data recorded in the call memory (100a) stored in the control memory (100b') Is transmitted to a specific channel of the TLIA0 141 physically connected in step 308 (step 314), whereby the TLIA0 141 extracts a clock of the PCM data and transmits the PCM data to the TSIA0 (120 '). Restore the audio signal applied from

Subsequently, the audio signal restored and output from the TLIA0 141 is converted into an optical signal in the OTRD0 161 connected to the rear end thereof, and then transmitted to the central data link unit CDL to be connected to the network control subsystem INS. And a space division switch (SSW) (not shown) configured to perform call processing for the relay call and the direct access subscriber.

However, contrary to the above case, if the time division switch processor 200 'analyzes call information in step 304 and the call is not a call routed to TSIA0 120' (NO in step 304), the time division switch The processor 200 'generates routing data based on the call information authorized from the matching exchange processor (ASP). In particular, the processor 200' records 13 and 12 bits of the routing data as' 01 'to record the CMMA 100'. In the control memory 100b '(step 316).

Accordingly, the CMMA 100 'makes a physical connection to the call channel based on 13 and 12 bits of the routing data recorded in the control memory 100b'. Since it is' 01 ', the CAAM 100' makes a physical connection to the call channel to the TLIA1 142 (step 318).

After the physical connection to the call channel is made through the above step, when a voice signal for a relay call or a direct access subscriber call is input to the TSIA1 121 '(step 320), the TSIA1 121' is input to a 1024 timeslot. PCM (Plues Code Modulation) processing of the corresponding voice signal based on the PCM data is applied to the call memory (100a) of the CMMA (100 '), the call memory (100a) stores the PCM data sequentially and At the same time, the CMMA 100 'stores the information on the address where the PCM data is recorded in the control memory 100b' (step 322).

Then, the CMMA (100 ') is the PCM data stored in the call memory (100a) based on the address information and the routing data for the PCM data recorded in the call memory (100a) stored in the control memory (100b') Is transmitted to a specific channel of the TLIA1 142 physically connected in step 318 (step 314), and the TLIA2 142 extracts a clock of the PCM data and transmits the PCM data to the TSIA1 121 '. Restore the audio signal applied from

Subsequently, the audio signal restored and processed from the TLIA1 141 is converted into an optical signal in the OTRD0 162 connected to the rear end thereof, and then transmitted to the central data link unit CDL to be connected to the network control subsystem INS. And a space division switch (SSW) (not shown) configured to perform call processing for the relay call and the direct access subscriber.

As described above, according to the time switch and the link matching device of the TOLL switch according to an embodiment of the present invention, it is possible to accommodate a direct connection subscriber of 1024 channels and a trunk of 1024 channels.

Claims (5)

2 timeslot exchange boards 0 and 1 (TSIA0) that are applied to the voice call memory 100a of the memory control and maintenance board (CMMA; , TSIA1); Call memory 100a sequentially storing PCM data for voice signals applied from the timeslot exchange boards 0, 1 (TSIA0, TSIA1), and address information of PCM data recorded on the call memory 100a. And a control memory (100b ') for storing the route setting message and storing the path setting message, and performing a physical connection to the communication channel, and then transferring the PCM data stored in the communication memory (100a) to the physically connected communication channel. And a holding board 100 '; Two time switches and link matching boards 0 for restoring the PCM data applied from the call memory 100a to a voice signal in a state where a physical connection to the call channel is made by the memory control and holding board 100 '. 1 (141, 142) and; An optical transmitter / receiver circuit board 0 connected to the time switch and link matching boards 0, 1 (141, 142) to convert the voice signal into an optical signal and apply the same to the central data link (CDL) so that the voice signal is spatially divided. A time division switch 2 including 1 (161, 162); When the relay call or direct access subscriber call is generated, the memory control and maintenance board of the time switch and link matching boards 0, 1 (141, 142) based on the time slot exchange board routed to the relay call or direct access subscriber call ( Path setting data in which information about a time switch and a link matching board to be physically connected to the timeslot exchange board by 100 'is recorded in the control memory 100b' of the memory control and maintenance board 100 '. Time switch and link matching device of a TOLL exchanger consisting of a time division switch processor (200 '). 2. The TOLL switch of claim 1, wherein the time division switch processor (200 ') determines a time slot exchange board routed for a call generated based on call information applied from a match exchange processor (ASP). Time switch and link matching device. The method of claim 1 or 2, wherein if the path of the call generated by the time division switch processor 200 'is set to the timeslot switching board 0 (120'), the 13,12 bits of the routing message are set to '00'. On the other hand, if the path of the corresponding call is set to the timeslot exchange board 1 (121 '), the time switch and link of the TOLL switch characterized in that 13,12 bits of the routing message are recorded as' 10'. Matching device. The time switch and link registration board 0 (141) of claim 1, wherein the memory control and maintenance board 100 'is set to' 00 'when 13 and 12 bits of the path setting message written in the control memory 100b' are '00'. Physical connection to the call channel when the 13,12 bits of the routing message are '10', and the time switch and the link matching board 1 (142) are physically connected to the call channel. Time switch and link matching device of the TOLL exchanger. 2. The time switch and link matching device of a TOLL switch according to claim 1, wherein 1024 channels are allocated to the time switch and link matching boards 0, 1 (141, 142).