JPH05206970A - Various function realizing system for transmitter - Google Patents

Abstract

PURPOSE:To obtain a reliable transmitter which does not generate erroneous operation by preventing the output of a harmful and meaningless signal to outside at the time of the setting conversion of a function concerning the various function realizing system for the transmitter. CONSTITUTION:The system is provided with a function realization indication part 70 indicating the realization of a function to be assigned to a unit to the respective units 101 to 10m in accordance with a function to be realized by the transmitter. In the unit, function setting/switch indicating signal parts 601 to 60m outputting a function setting signal and a switching signal in accordance with the indication from the function realization indicating part and a function corresponding to the function setting signal are set. Then the system is provided with variable function parts 401 to 40m connected to a signal line through a try state output terminal 20, variable function parts 501 to 50m connected to a signal line through an input terminal 30 and a try state output terminal switching between a connection state and a high impedance state in accordance with the switching signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for realizing various functions of a transmission device, and in particular, a plurality of units that can be hot-plugged and unplugged are provided, and the units are connected to each other by a signal line to realize a plurality of functions. The present invention relates to various function realizing methods of a transmission device that can be realized. Here, the transmission device is interposed between a switchboard and various subscriber terminal devices, telephones, facsimile devices, etc., and multiplexes signals to speed up the transmission time or frame type. It is a device for switching between, and switching between analog data and digital data.

[0002]

2. Description of the Related Art Conventionally, there has been a transmission device as shown in FIG. In the transmission device according to the present example, as shown in the figure, the units 100 _{1 to} 100 ₃ are connected to each other by a signal line, and the unit 100 capable of hot insertion / removal and capable of realizing a plurality of functions. and ₁ to 100 _3, within each unit 100 ₁ to 100 _3, as shown in the figure, function a circuit 24 ₁ for realizing the functions a of various functions,
25 ₂ and 25 _3, and an output terminal 22 and an input terminal 3 connected to one signal line. In this example, when the function B is to be realized in place of the function A as the function to be implemented by the transmission device, the above units are separated during operation to realize the function B. It is necessary to install the necessary new unit. Here, in the illustrated signal lines, only the signal lines that change between when the function A is realized and when the function B is realized are written.

[0003]

As described above, in the conventional example, due to the version upgrade, etc.
When changing the function of the transmission device from function A to function B,
It was necessary to remove the old unit for function A and install the new unit for function B. However, if you try to change the function while operating the system of the device, there is a problem that the signal is disturbed and a malfunction is caused because a meaningless and harmful signal is output from the unit at the moment of disconnection. Was there.

Therefore, according to the present invention, it is not necessary to insert or remove each unit when changing the function during operation, and the reliability of each unit does not malfunction when changing the function during operation. It is made for the purpose of providing various function realizing methods of a certain transmission device.

[0005]

To solve the above technical problems SUMMARY OF THE INVENTION The present invention, as shown in FIG. 1, the active pluggable unit 10 ₁ to 10 _m is provided with a plurality, the respective units 10 ₁ In a transmission device connected to each other by a signal line for 10 _m , a function implementation instruction that instructs each unit to implement the function to be assigned to the unit, according to the function to be implemented by the transmission device. The unit 70 is provided, and the function setting / switching instruction units 60 _{1 to} 60 _m for outputting the function setting signal and the switching signal in the units 10 ₁ to 10 _m according to the instruction from the function realization instructing unit 70.
And the corresponding function is set according to the function setting signal, and the variable function units 40 ₁ to 40 _m connected to the signal line via the tri-state output terminal 20 and the signal line via the input terminal 30. a variable function unit 50 ₁ to 50 _m were in accordance with the switching signal, the tri-state output terminal 20 of switching between a connected state and a high impedance state, in which the provided.

[0006]

Operation: From the function implementation instruction section 70, the operator can
Each unit 10 according to the function to be realized by the transmission device.
₁-10_mShould be assigned to the unit
Instructions for realizing the function are given. When the instruction is given, each user
Knit 10₁-10_mFunction setting / switching instruction unit 60 ₁
~ 60_mIs the variable function unit 40₁~ 40_m, 50₁~
Fifty_m, The function setting signal is output according to the instruction.
U At that time, all the tri-state output terminals 20 are
Is in a high impedance state, and the variable function unit 40₁~
40_mIs cut off from the signal line, the variable function unit 4
0₁~ 40_mVia the signal line when setting functions.
And a harmful and meaningless signal is output to the outside,
It does not adversely affect other devices. On the other hand, variable function
Part 50₁~ 50_mAre connected at the input terminal 30
Therefore, when setting the function, no signal is output to the outside.
Yes. Each variable function unit 40₁~ 40_m, 50₁~ 50_mEach of
When the function setting is completed,
Indicator 60₁~ 60_mSwitch to the output terminal 20
Signal to output a high impedance
The functional unit 40 is switched from the state to the connected state.₁~ 40_m
Is connected to a signal line, and the functional unit 40₁~ 40_mOut of
The applied signal will be sent to the outside. In addition, above
The explanation is that there is only one part that changes due to a change in function.
I explained about the case of line No., but only in that case
When changing in multiple signal lines without
May have the above configuration for each signal line.

[0007]

EXAMPLES Next, examples of the present invention will be described.
FIG. 2 shows an overall block diagram including the transmission device and the remote terminal device according to the present embodiment. As shown in the figure, in the present embodiment, the active pluggable units 1 ₁ to 1 ₃ connected to each other by a signal line, the subscriber-system transmission apparatus 100
0 Depending on should realize functions, for each unit 1 ₁ to 1 _3, and function realizing instruction unit 7 for instructing the implementation of functions to be assigned to the unit is provided. As shown in the figure, the function implementation instruction unit 7 analyzes the instruction from the remote terminal device 71 and the remote terminal device 71 in which the operator gives an instruction of the function to be implemented by the transmission device, and for each unit. And a control unit 72 for giving instructions.

Further, FIG. 3 shows each unit of the transmission apparatus according to the embodiment.
It shows a knit. As shown in the figure, each unit
To 1₁~ 1₃To realize various functions of transmission equipment
, The function according to the instruction from the outside is set,
Variable machine connected to the signal line via the state output terminal 2
Nobu 4₁~ 4₃(When the function A is set,
Variable) connected to the signal line via input terminal 3
Nobu 5₁~ 5 ₃(When the function B is set,
Connection status and high impedance depending on the switching signal
Tri-state output terminal 2 that switches between
And input terminal 3 and various controls for each unit.
CPU8₁~ 8₃And have.

FIG. 4 functionally shows the variable function section 4 ₁ and the CPU 8 ₁ for the unit 1 ₁ . As shown in the figure, the variable function unit 4 _1, wherein an individual functional unit functions A circuit 14a, function C circuit 14c, and the function G circuit 14 g, the selection of the individual functional unit according to the function setting signal And a selection unit 14 to perform. Similarly, the variable function unit 5 also has a function B circuit 15b and a function D circuit 15b.
d, a function H circuit 15h, and a selection unit 15 that selects each individual function unit according to a function setting signal. Here, Examples of multiple functions which can be each variable function of each unit 1 ₁ to 1 ₃ is selected, for example, be the frame unit that performs frame processing of data to be transmitted to a plurality of types selected This is the case when it is possible, or when it is possible to select the digital data processing function and the analog data processing function. Further, the CPU 8 ₁ is functionally provided with the variable function units 4 ₁ , 5 _{1 as} shown in FIG.
And function setting and switching instruction unit ₆₁ made according to function setting signal and a switching signal to the tri-state output terminal 2 to the instruction from the control unit 72 instructs the settings function for, in the function setting completion or production Notification unit 9 ₁ for notifying the control unit 72 of status completion
And have.

FIG. 5 shows a processing diagram for setting and operating the function A according to this embodiment. As shown in the figure, the control unit of the transmission device and each unit are powered on. At this stage, the function of each unit 1 ₁ to 1 ₃ is undetermined,
Each tri-state output terminal 2 is in a high impedance state. After that, when the control unit 72 issues a setting instruction for the function A to the transmission device from the remote terminal device 71, the control unit 72 gives a corresponding instruction for each unit according to the instruction. The function setting / switching instructing sections 6 _{1 to} 6 ₃ configured by the CPU of each unit, etc. respond to the instruction to the variable function sections 4 ₁ to 4 ₃ to set the function necessary for realizing the function A. An instruction, that is, an instruction to select the function A circuit 14a by the function setting signal is given.

When the function setting is completed in each of the variable function units 4 ₁ to 4 ₃ , the notification units 9 _{1 to} 9 ₃ cause the control unit 7 to operate.
2 is notified of setting completion. Further, the control unit 72 notifies the remote terminal device 71 of the completion of the function setting. When the remote terminal device 71 receives the completion notification of the function setting, it sends an operation start command to the control unit 72. When the control unit 72 receives the operation start instruction, for each unit 1 ₁ to 1 _3, so that each performs an instruction to start operation. When the control unit 72 are instructed to start operation, function settings, switching instruction unit ₆₁ through the _third CPU 8 ₁ to 8 ₃ of each unit ₁ 1 to 1 _3, with respect to the tri-state output terminal 2, switching Send a signal. To realize the function A corresponding to FIG. 3, the switching signal shown in Table 1 below is sent to the output terminal 2.

[0012]

[Table 1] That is, as shown in the serial table, for the tri-state output terminal of the unit 1 _1, "0" signal is sent to, and the output terminal 2 to the connected state, the output signal from the function A circuit outputs Enable and send a "1" signal to the output terminal of unit 1 ₂ and to the output terminal 2
High impedance state (cut-off state). Further, with respect to the output terminals of the unit 1 _3, it sends a "1" signal,
The output terminal 2 is also in a high impedance state. When the function setting / switching instructing units 6 _{1 to} 6 ₃ send out the above switching signals, the notifying units 9 _{1 to} 9 ₃ receive the fact and notify the control unit 72 of the completion of the operation discharge. .. Upon receiving the notification, the control unit 7
2 notifies the remote terminal device 71 of the completion of the operation.

FIG. 6 shows the function B after the function A is realized.
And shows a procedure for realizing, when the function A of switching to function B, first the output terminal 2 of the unit 1 ₁ and the high-impedance state (disconnected state),
After that, the processing is performed in the same manner as in the case of FIG. However,
The switching signal to be sent to each tri-state output terminal 2 is the function setting / switching instruction section 6 ₁ according to the above-mentioned table.
Will be output from ~ 6 ₃ . In the above description, the case where only one signal line is changed by switching each function has been described, but the present invention is not limited to this case, and one or more signal lines can be set by setting each function. Even when the function changes, the same device as above may be provided for each signal line that changes depending on the setting of the function, and the same processing may be performed.

[0014]

As described above, in the present invention, the function realization instructing section is provided, and each unit is provided with the function setting / switching instructing section, the variable function section, and the tri-state output terminal. As a result, the function can be converted by the instruction of the function instructing unit without inserting / removing each unit, and at the time of converting the function of the variable function unit, the tri-state output terminal is set to the high impedance state. By doing so, it is possible to provide a transmission device that can prevent the output of a signal that is harmful to the outside and meaningless and that can realize various functions that are reliable and have no malfunction.

[Brief description of drawings]

FIG. 1 is a block diagram of the principle of the invention.

FIG. 2 is an overall block diagram according to an embodiment.

FIG. 3 is a block diagram according to an embodiment.

FIG. 4 is a detailed block diagram according to an embodiment.

FIG. 5 is a function A setting processing diagram according to an embodiment.

FIG. 6 is a function B setting processing diagram according to the embodiment.

FIG. 7 is a block diagram according to a conventional example.

[Explanation of symbols]

 10, 1 Function part 20, 2 Tri-state output terminal 30, 3 Input terminal 40, 50, 4, 5 Variable function part 60, 6 Function setting / switching instruction part 70, 7 Function realization instruction part

Claims (2)

[Claims] 1. A unit (10 ₁ to 1) capable of hot insertion and removal.
0 _m ) are provided in plurality, and each unit (10 ₁ to 10 ₁ ) is provided.
_In a transmission device interconnected by signal lines between _m ), a function implementation instruction unit that instructs each unit to implement the function that should be assigned to that unit, depending on the function that the transmission device implements. (70) is provided, and a function setting / switching instruction section (60) for outputting a function setting signal and a switching signal in the unit (10 ₁ to 10 _m ) in response to an instruction from the function realization instructing section (70). ₁ ~
60 _m ), the corresponding function is set according to the function setting signal, and the variable function unit (40 ₁ to 40 _m ) connected to the signal line via the tri-state output terminal (20) and the input terminal (30 )
Connected to the signal line via the the variable function unit (50 ₁ to 50
_m ) and a tri-state output terminal (20) that switches between a connected state and a high impedance state according to a switching signal.
A method for realizing various functions of a transmission device, characterized by being provided with. 2. The variable function section (40 ₁ to 40 _m , 50 ₁₎
To 50 _m) includes a plurality of individual functional unit in which various functions are set, the transmission apparatus according to claim 1, characterized by having a selection section for selecting the individual functional unit in accordance with the function setting signal Various function realization methods.