JPH0115183B2 - - Google Patents
Info
- Publication number
- JPH0115183B2 JPH0115183B2 JP56208765A JP20876581A JPH0115183B2 JP H0115183 B2 JPH0115183 B2 JP H0115183B2 JP 56208765 A JP56208765 A JP 56208765A JP 20876581 A JP20876581 A JP 20876581A JP H0115183 B2 JPH0115183 B2 JP H0115183B2
- Authority
- JP
- Japan
- Prior art keywords
- switching
- input disconnection
- backup
- working
- detection circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- IORPOFJLSIHJOG-UHFFFAOYSA-N 3,7-dimethyl-1-prop-2-ynylpurine-2,6-dione Chemical compound CN1C(=O)N(CC#C)C(=O)C2=C1N=CN2C IORPOFJLSIHJOG-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Time-Division Multiplex Systems (AREA)
Description
【発明の詳細な説明】
本発明は、現用と予備との多重変換装置を切換
える切換装置を有するシステムに於いて、入力断
検出による警報信号を出力するか否か制御する入
力断警報制御方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an input disconnection alarm control method for controlling whether or not to output an alarm signal upon input disconnection detection in a system having a switching device for switching between active and standby multiplex converters. It is something.
現用の多重変換装置の障害時に予備の多重変換
装置に切換装置により切換えるシステムに於いて
は、切換えにより使用されなくなつた多重変換装
置は入力断状態となり、それによつて入力断警報
信号が出力されることになる。例えば第１図に示
すように、多重化装置MPX1と多重分離装置
DMPX1とからなる多重変換装置MUX1を現用と
し、多重化装置MPX2と多重分離装置DMPX2と
からなる多重変換装置MUX2を予備とするよう
に、切換装置SWa，SWbが制御部CONTにより
切換制御されていると、現用側の多重化装置
MPX1の入力断検出回路DET1は、各チヤネルの
入力信号in１〜inmが加えられている限り入力断
警報信号を出力しないが、予備側の多重化装置
MPX2の入力断検出回路DET2は、切換装置SWa
により各チヤネルの入力信号in１〜inmを現用側
の多重化装置MPX1に加えるように切換えられて
いることにより、入力信号がないので入力断警報
信号を出力することになる。 In a system in which a switching device switches to a backup multiplex converter when a failure occurs in the current multiplex converter, the multiplex converter that is no longer in use due to switching becomes in an input disconnected state, and an input disconnection alarm signal is output. That will happen. For example, as shown in Figure 1, a multiplexer MPX 1 and a demultiplexer
The switching devices SWa and SWb are controlled by the control unit CONT so that the multiplex converter MUX 1 consisting of the multiplexer MPX 1 and the demultiplexer DMPX 1 is in use, and the multiplex converter MUX 2 consisting of the multiplexer MPX 2 and the demultiplexer DMPX 2 is used as a backup. If switching is controlled, the working multiplexer
The input disconnection detection circuit DET 1 of MPX 1 does not output an input disconnection alarm signal as long as the input signals in1 to inm of each channel are applied.
The input disconnection detection circuit DET 2 of MPX 2 is connected to the switching device SWa.
Since the input signals in1 to inm of each channel are switched to be applied to the working side multiplexer MPX 1 , an input disconnection alarm signal is outputted since there is no input signal.
なお多重分離装置DMPX1，DMPX2にも入力
断検出回路（図示せず）が設けられているもので
あるが、切換装置SWbのスイツチS1〜S4が図示
状態で、予備側の多重化装置MPX2と多重分離装
置DMPX2とはスイツチS4を介して折返し接続さ
れているので、予備側の多重分離装置DMPX2の
入力断検出回路（図示せず）から入力断警報信号
が出力されることはない。又Soutは多重化送信
信号、Rinは多重化受信信号、out1〜outmは各
チヤネル対応の出力信号である。 Note that the demultiplexing devices DMPX 1 and DMPX 2 are also provided with input disconnection detection circuits (not shown), but the switches S 1 to S 4 of the switching device SWb are in the illustrated state, and the multiplexing on the standby side is Since device MPX 2 and demultiplexer DMPX 2 are connected back through switch S 4 , an input disconnection alarm signal is output from the input disconnection detection circuit (not shown) of demultiplexer DMPX 2 on the standby side. It never happens. Further, Sout is a multiplexed transmission signal, Rin is a multiplexed reception signal, and out1 to outm are output signals corresponding to each channel.
又現用側の多重変換装置MUX1に障害が発生
すると、制御装置CONTは切換装置SWa，SWb
を制御して、予備側の多重変換装置MUX2に切
換える。この場合も先に現用側であつた多重化装
置MPX1の入力断検出回路DET1は入力断警報信
号を出力することになる。 Also, if a failure occurs in the multiplex converter MUX 1 on the active side, the control device CONT switches the switching devices SWa and SWb.
is controlled to switch to the multiplex converter MUX 2 on the standby side. In this case as well, the input disconnection detection circuit DET 1 of the multiplexer MPX 1 , which was previously on the active side, outputs an input disconnection alarm signal.
本発明は、前述の如き欠点を改善したもので、
多重変換装置の現用、予備を識別し、予備側の多
重変換装置の入力断検出を禁止し、余分な入力断
警報信号が出力されないようにすることを目的と
するものである。以下実施例について詳細に説明
する。 The present invention improves the above-mentioned drawbacks, and
The purpose of this invention is to identify whether the multiplex converter is currently in use or as a standby, and to prohibit detection of input disconnection of the multiplex converter on the standby side, thereby preventing unnecessary input disconnection alarm signals from being output. Examples will be described in detail below.
第２図は本発明の実施例の要部ブロツク線図で
あり、第１図と同一符号は同一部分を示し、
SWCは切換制御回路、ALMは警報盤である。切
換制御回路SWCは切換装置SWa，SWbを制御す
るものであるから、多重化装置MPX1，MPX2の
何れが現用側であるか容易に識別できることにな
る。従つて予備側の多重化装置の入力断検出回路
に禁止信号を加えるものである。例えば多重化装
置MPX2が予備側であるとすると、入力断検出回
路DET2に禁止信号を加える。それによつて入力
断検出回路DET2は入力断状態でも入力断警報信
号を警報盤ALMに出力しないものとなる。 FIG. 2 is a block diagram of main parts of an embodiment of the present invention, and the same reference numerals as in FIG. 1 indicate the same parts.
SWC is a switching control circuit, and ALM is an alarm panel. Since the switching control circuit SWC controls the switching devices SWa and SWb, it is possible to easily identify which of the multiplexing devices MPX 1 and MPX 2 is on the active side. Therefore, a prohibition signal is added to the input disconnection detection circuit of the multiplexer on the standby side. For example, if the multiplexer MPX 2 is on the standby side, a prohibition signal is applied to the input disconnection detection circuit DET 2 . As a result, the input disconnection detection circuit DET 2 does not output an input disconnection alarm signal to the alarm panel ALM even in an input disconnection state.
又多重化装置MPX2を現用側とするように切換
えた場合は、多重化装置MPX1の入力断検出回路
DET1に禁止信号を加えるものである。従つて現
用状態の多重化装置に於いてのみ入力断検出が行
なわれることになり、余分な警報信号が出力され
るようなことはなくなる。又多重分離装置の入力
断検出回路に対しても同様に禁止信号を加えるよ
うにすることができる。 In addition, if the multiplexer MPX 2 is switched to the active side, the input disconnection detection circuit of the multiplexer MPX 1
This adds a prohibition signal to DET 1 . Therefore, the input disconnection detection is performed only in the multiplexing device currently in use, and no unnecessary alarm signals are output. Further, a prohibition signal can be similarly applied to the input disconnection detection circuit of the demultiplexer.
以上説明したように、本発明は、多重化装置
MPX1，MPX2等を含む現用と予備との多重変換
装置と、切換装置SWa，SWbと、切換制御回路
SWCとから構成され、多重変換装置は入力断検
出回路DET1，DET2を備え、切換制御回路SWC
は切換装置SWa，SWbを制御することによる現
用、予備の切換状態を識別する機能と、禁止信号
を出力する機能とを備えて、現用側となつた多重
変換装置の入力断検出回路を動作状態とし、予備
側となつた多重変換装置の入力断検出回路に禁止
信号を加えて、入力断警報信号の出力を禁止する
もので、予備側に切換えらた多重変換装置が入力
断状態となつても、入力断警報信号が出力されな
いように制御されるから、誤判断を生じる虞れが
なくなる利点がある。 As explained above, the present invention provides a multiplexing device
Multi-converter for active and backup including MPX 1 , MPX 2 , etc., switching devices SWa, SWb, and switching control circuit
The multiplex converter is equipped with input disconnection detection circuits DET 1 and DET 2 , and a switching control circuit SWC.
has the function of identifying the active and standby switching states by controlling the switching devices SWa and SWb, and the function of outputting a prohibition signal, and switches the input disconnection detection circuit of the multiplex converter on the active side to the operating state. This method applies a prohibition signal to the input disconnection detection circuit of the multiplex converter that has become the standby side, and prohibits the output of the input disconnection alarm signal. Also, since the input disconnection alarm signal is controlled so as not to be output, there is an advantage that there is no possibility of erroneous judgment.
即ち、予備側に切換えられて入力信号が加えら
れなくなつた多重変換装置の入力断検出回路から
は入力断警報信号が出力されず、実際に入力断と
なつたときは、現用側に切換えられている多重変
換装置の入力断検出回路が動作して入力断警報信
号を出力することになり、現用側か予備側かの探
索を行う必要はないものとなる。 In other words, the input disconnection detection circuit of the multiplex converter that has been switched to the standby side and no longer receives input signals does not output an input disconnection alarm signal, and when an input disconnection actually occurs, the input disconnection detection circuit is switched to the active side. The input disconnection detection circuit of the multiplex converter will operate and output an input disconnection alarm signal, and there will be no need to search for whether it is on the active side or on the standby side.
第１図は現用と予備との多重変換装置と切換装
置とからなるシステムのブロツク線図、第２図は
本発明の実施例の要部ブロツク線図である。
MUX1，MUX2は多重変換装置、MPX1，
MPX2は多重化装置、DMPX1，DMPX2は多重
分離装置、SWa，SWbは切換装置、DET1，
DET2は入力断検出回路、SWCは切換制御回路、
ALMは警報盤である。
FIG. 1 is a block diagram of a system consisting of active and standby multiplex converters and switching devices, and FIG. 2 is a block diagram of essential parts of an embodiment of the present invention. MUX 1 , MUX 2 are multiplex converters, MPX 1 ,
MPX 2 is a multiplexer, DMPX 1 and DMPX 2 are demultiplexers, SWa and SWb are switching devices, DET 1 ,
DET 2 is the input disconnection detection circuit, SWC is the switching control circuit,
ALM is an alarm panel.
Claims (1)
換制御回路とから構成され、前記切換装置により
現用、予備の切換えを行なうシステムに於いて、 前記現用と予備との多重変換装置は、入力断検
出回路を備え、 前記切換制御回路は、現用、予備の切換状態の
識別機能と、禁止信号の出力機能とを備え、 該切換制御回路により前記切換装置を制御して
現用、予備の切換えを行なわせ、該現用、予備の
切換状態を識別して、現用側となつた多重変換装
置の入力断検出回路を動作状態とし、予備側とな
つた多重変換装置の入力断検出回路に禁止信号を
加えて入力断警報信号の出力を禁止する ことを特徴とする入力断警報制御方式。[Scope of Claims] 1. In a system comprising a multiplex converter, a switching device, and a switching control circuit for working and backup, and switching between working and backup by the switching device, The conversion device includes an input disconnection detection circuit, and the switching control circuit has a function of identifying a switching state between working and standby, and a function of outputting a prohibition signal, and the switching control circuit controls the switching device to switch between working and standby switching states. , performs backup switching, identifies the working and backup switching states, puts the input disconnection detection circuit of the multiplex converter on the active side into operation, and detects the input disconnection of the multiplex converter on the backup side. An input disconnection alarm control method characterized by adding a prohibition signal to a circuit to prohibit the output of an input disconnection alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20876581A JPS58108842A (en) | 1981-12-23 | 1981-12-23 | Control system for warning of input break |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20876581A JPS58108842A (en) | 1981-12-23 | 1981-12-23 | Control system for warning of input break |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58108842A JPS58108842A (en) | 1983-06-29 |
| JPH0115183B2 true JPH0115183B2 (en) | 1989-03-16 |
Family
ID=16561712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20876581A Granted JPS58108842A (en) | 1981-12-23 | 1981-12-23 | Control system for warning of input break |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58108842A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114459A (en) * | 1980-02-14 | 1981-09-09 | Nec Corp | Noninterruptive switching device |
-
1981
- 1981-12-23 JP JP20876581A patent/JPS58108842A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114459A (en) * | 1980-02-14 | 1981-09-09 | Nec Corp | Noninterruptive switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58108842A (en) | 1983-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62253231A (en) | Active/standby changeover system | |
| JPH07297762A (en) | Line changeover device | |
| CA2227022A1 (en) | Restoration network architecture | |
| JPH11261511A (en) | Simplex/duplex corresponding device | |
| JPH0115183B2 (en) | ||
| JPS61295800A (en) | Remote station control system | |
| JPH0431209B2 (en) | ||
| JPH0817393B2 (en) | Transmission line branching device | |
| JPS61208334A (en) | Ring transmission system | |
| SU1128241A1 (en) | Analog information input device | |
| JP2573658Y2 (en) | Signal circuit | |
| JPH01151390A (en) | Channel for digital automatic exchange by redundant structure | |
| JPH0730615A (en) | Line control part redundant system | |
| JPS5869146A (en) | Multiplex converter | |
| JPH04100397A (en) | Changing method for cross connect device | |
| JPH0439931B2 (en) | ||
| JPH0469460B2 (en) | ||
| JPS6269756A (en) | Plural circuit switching system for automatic calling device | |
| JPH0683240B2 (en) | Signal transmission method | |
| JPH03205925A (en) | Dual system using common bus | |
| JPS63189027A (en) | Redundant constituting circuit | |
| JPH03235539A (en) | Pcm terminal station equipment | |
| JPH01300746A (en) | Handset selector for telephone set | |
| JPH02170633A (en) | Signal system bypass system | |
| JPH0437320A (en) | Line switching system for transmission system |