JPH03148925A - Communication equipment switching system - Google Patents
Communication equipment switching systemInfo
- Publication number
- JPH03148925A JPH03148925A JP28625689A JP28625689A JPH03148925A JP H03148925 A JPH03148925 A JP H03148925A JP 28625689 A JP28625689 A JP 28625689A JP 28625689 A JP28625689 A JP 28625689A JP H03148925 A JPH03148925 A JP H03148925A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- communication device
- communication equipment
- switching
- side communication
- 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.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 72
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は通信装置切換え方式に関し、特に通信装置障害
、通信回線障害、切換部自体の障害を判別して切換える
通信装置切換え方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication device switching system, and more particularly to a communication device switching system that switches after determining a communication device failure, a communication line failure, or a failure in the switching section itself.
従来、この種の通信装置切換え方式は、第２図のブロッ
ク図に示すように、外部通信回線２３Ａから入力される
バイポーラ信号は切換器２３経由分配回路２４にて二分
配後、稼動側通信装置２８又は待機側通信装Ｗ２９へ継
電器２５．２６を介して入力する。一方稼動側通信装置
２８および待機側通信装置２９の出力バイボーラ信号は
継電器３０を切換えて外部通信回線２３Ａへ出力されて
いる。すなわち、従来の通信装置切換え方式は、単に外
部通信回１１２３Ａからの入力バイボーラ信号を分配回
路２４を用いて二分配し、稼動側通信装置２８と待機側
通信装置２９とに送り、各通信装置内の障害検出により
がい当する継電器を駆動して切換えている。一方、出力
バイボーラ信号を送る場合に稼動側通信装置２３に装置
障害が発生すると、稼動側通信装置２３からの切換要求
信号をうけて、継電器３０によって信号径路を切換えて
、待機側通信装置２９の出力バイボーラ信号を通信回線
２３Ａへ送るようにする。また、入力バイボーラ信号は
分配回路２４において、外部通信回線２３Ａからの入力
バイボーラ信号断が検出された場合、あるいは、切換用
継電器の電源断となった場合に、入力バイボーラ信号径
路を分配回路２４を通さず非能動回路であるう回回路の
継電器２７に切換えていた。Conventionally, in this type of communication device switching system, as shown in the block diagram of FIG. 28 or to the standby communication device W29 via relays 25 and 26. On the other hand, the output bibolar signals of the active side communication device 28 and the standby side communication device 29 are outputted to the external communication line 23A by switching the relay 30. That is, the conventional communication device switching method simply divides the input bibolar signal from the external communication circuit 1123A into two using the distribution circuit 24, sends it to the active side communication device 28 and the standby side communication device 29, and sends it to the active side communication device 28 and the standby side communication device 29. When a fault is detected, the corresponding relay is activated and switched. On the other hand, if a device failure occurs in the active communication device 23 when sending an output bibolar signal, the signal path is switched by the relay 30 in response to a switching request signal from the active communication device 23, and the standby communication device 29 The output bibolar signal is sent to the communication line 23A. Furthermore, when the input bibolar signal is detected in the distribution circuit 24 as disconnection of the input bibolar signal from the external communication line 23A, or when the switching relay is powered off, the input bibolar signal path is routed through the distribution circuit 24. Instead, the switch was switched to relay 27, which is a detour circuit and is an inactive circuit.
しかしながら上述した従来の通信装置切換え方式は、通
信回線からの入力バイボーラ信号断によってう回回路に
切換わった場合にう回回路にはバイポーラ信号検出回路
を備えてないので、通信回線からの入力バイボーラ信号
が復旧しても入力バイボーラ信号径路を分配回路側に復
旧させることをかできないため、稼動側通信装置と待機
側通信装置の両方に対して入力バイボーラ信号を送るこ
とができず、待機側通信装置において、入力信号断の警
報が生じてしまうという欠点がある。However, in the conventional communication device switching method described above, when the input bipolar signal from the communication line is disconnected and the circuit is switched to the detour circuit, the detour circuit is not equipped with a bipolar signal detection circuit. Even if the signal is restored, the input bibolar signal path cannot be restored to the distribution circuit side, so the input bibolar signal cannot be sent to both the active communication device and the standby communication device, and the standby communication The device has a drawback in that an alarm is generated when the input signal is disconnected.
本発明の通信装置切換え方式は通常の通信回線に稼動側
通信装置または待機側通信装置を切換えて接続するため
の障害検出部と切換部とを有する第１の切換え手段と、
う回回路切換え部に前記稼動側通信装置または前記待機
側通信装置の少なくとも一方の出力信号を切換えて接続
する第２の切換え手段とを備え、前記第２の切換え手段
が前記第１の切換え手段の障害検出部の情報により動作
する。The communication device switching method of the present invention includes a first switching means having a failure detection section and a switching section for switching and connecting an active communication device or a standby communication device to a normal communication line;
a second switching means for switching and connecting an output signal of at least one of the active side communication device or the standby side communication device to the detour circuit switching section, and the second switching means is connected to the first switching means. It operates based on the information from the failure detection unit.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は、本発明の一実施例を示す構成図である。図に
おいて、外部の通信回線ＩＡから入力されるバイポーラ
信号は切換部２Ａの入力端子１から継電器３を通り稼動
側通信装置７の入力端子５へ送られる。稼動側通信装置
７の出力バイボーラ信号は出力端子６から継電器１１を
通り分配器１２で２分配される。２分配されたバイポー
ラ信号の一つは出力端子１９から外部の通信回線ＩＡへ
送られ、他の一つは継電器４を通り待機側通信装置８の
入力バイボーラ信号として入力端子９へ送られる。稼動
側通信装置７に障害が発生し、切換要求信号１４が出さ
れた場合に、制御部１３は制御信号１８Ａを送出し、継
電器３．４．１１を切換えることにより、信号経路を待
機側通信装置８に切換える。分配器１２にはこの分配器
１２に入力する信号の検出器を有しており、この検出器
が稼動側通信装置からの信号が断となると、継電器３．
４．１１を切換え、まず信号径路を待機側通信装置８に
切換える。この場合に分配器１２における信号断検出が
外部通信回線断によりものでああれば、待機側通信装置
８に切換え後も入力断信号１７が送出され、分配器１２
でも信号断検出となる。この条件では、継電器３．４．
１１を稼動側通信装Ｍ７側に復帰させる。分配器１２に
おける信号断検出が分配器１２の回路障害である場合に
は、稼動側通信装置７は信号を検出し、入力断信号１５
を送出しないが、待機側通信装Ｗ８では入力信号断とな
り、入力断信号１７を送出する。FIG. 1 is a configuration diagram showing an embodiment of the present invention. In the figure, a bipolar signal input from an external communication line IA is sent from an input terminal 1 of a switching section 2A to an input terminal 5 of an active communication device 7 through a relay 3. The output bibolar signal from the active communication device 7 passes through the relay 11 from the output terminal 6 and is divided into two by the distributor 12. One of the two divided bipolar signals is sent from the output terminal 19 to the external communication line IA, and the other one passes through the relay 4 and is sent to the input terminal 9 as an input bipolar signal of the standby side communication device 8. When a failure occurs in the active side communication device 7 and the switching request signal 14 is issued, the control unit 13 sends the control signal 18A and switches the relay 3.4.11 to change the signal path to the standby side communication. Switch to device 8. The distributor 12 has a detector for the signal input to the distributor 12, and when the signal from the operating communication device is cut off, the detector activates the relay 3.
4.11, and first the signal path is switched to the standby side communication device 8. In this case, if the signal disconnection detected in the distributor 12 is due to a disconnection of the external communication line, the input disconnection signal 17 is sent out even after switching to the standby communication device 8, and the distributor 12
However, signal disconnection is detected. Under this condition, relays 3.4.
11 is returned to the active communication device M7 side. If the signal disconnection detected in the distributor 12 is due to a circuit failure in the distributor 12, the operating side communication device 7 detects the signal and transmits the input disconnection signal 15.
However, the input signal is cut off in the standby side communication device W8, and the input cutoff signal 17 is sent out.
このような条件の場合では制御部１３は制御信号１８Ｂ
によりう回回路ＩＢに信号を通すようにう回切替部２Ｂ
を切換える。またう回切替部２Ｂは切換部２Ａの電源断
の場合にも、う回目路側に自動的に切換わり信号径路か
断たれることを防ぐことができる。Under such conditions, the control unit 13 outputs the control signal 18B.
The detour switching unit 2B is configured to pass the signal to the detour circuit IB.
Switch. Furthermore, even when the switching section 2A is powered off, the detour switching section 2B can automatically switch to the detour side and prevent the signal path from being cut off.
以上説明したように、本発明は稼動側通信装置の出力バ
イボーラ信号を二分配し、通信回線のほかに待機側通信
装置にも送ることにより信号断の検出を稼動側通信装置
、および、切換部にある分配回路、および待機側通信装
置の３個所で行うことができるので、通信装置障害、通
信回線障害を区別し、不必要な装置切換を防ぐことがで
きる効果がある。また、通信装置切換部自体の障害も検
出できるので、う回回路利用のための切換えも適切に行
うことができる効果がある。As explained above, the present invention divides the output bibolar signal of the active communication device into two and sends it to the standby communication device in addition to the communication line, thereby detecting a signal disconnection between the active communication device and the switching unit. This can be carried out at three locations: the distribution circuit located at the terminal, and the standby side communication device, which has the effect of distinguishing between communication device failures and communication line failures and preventing unnecessary device switching. Furthermore, since failures in the communication device switching unit itself can be detected, there is an effect that switching for use of the detour circuit can be appropriately performed.
図面の簡単な説明
第１図は本発明の一実施例の構成図、第２図は従来の通
信装置切換え方式の構成図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional communication device switching system.
１．５．９・・・入力端子、２Ａ−・・切換部、２Ｂ・
−・う回切換部、３．４．１１・・−継電器、５−・・
入力端子、６，１０．１９・・・出力端子、７・・・稼
動側通信装置、８・・・待機側通信装置、１２・・・分
配器、１３−・・制御部。1.5.9...Input terminal, 2A-...Switching section, 2B-
-・Detour switching unit, 3.4.11...-Relay, 5-...
Input terminal, 6, 10.19... Output terminal, 7... Active side communication device, 8... Standby side communication device, 12... Distributor, 13-... Control unit.
Claims (1)
を切換えて接続するための障害検出部と切換部とを有す
る第１の切換え手段と、う回回路切換え部に前記稼働側
通信装置または前記待機側通信装置の少なくとも一方の
出力信号を切換えて接続する第２の切換え手段とを備え
、前記第２の切換え手段が前記第１の切換え手段の障害
検出部の情報により動作することを特徴とする通信装置
切換え方式。a first switching means having a fault detection unit and a switching unit for switching and connecting the active communication device or the standby communication device to a normal communication line; and a second switching means that switches and connects at least one output signal of the standby communication device, and the second switching means operates based on information from a failure detection section of the first switching means. communication device switching method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28625689A JPH03148925A (en) | 1989-11-02 | 1989-11-02 | Communication equipment switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28625689A JPH03148925A (en) | 1989-11-02 | 1989-11-02 | Communication equipment switching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03148925A true JPH03148925A (en) | 1991-06-25 |
Family
ID=17702015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28625689A Pending JPH03148925A (en) | 1989-11-02 | 1989-11-02 | Communication equipment switching system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03148925A (en) |
-
1989
- 1989-11-02 JP JP28625689A patent/JPH03148925A/en active Pending
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