JPH0446737U - - Google Patents
Info
- Publication number
- JPH0446737U JPH0446737U JP8742490U JP8742490U JPH0446737U JP H0446737 U JPH0446737 U JP H0446737U JP 8742490 U JP8742490 U JP 8742490U JP 8742490 U JP8742490 U JP 8742490U JP H0446737 U JPH0446737 U JP H0446737U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- circuits
- data transmitting
- line
- contacts
- 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
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Detection And Prevention Of Errors In Transmission (AREA)
Description
第１図は本考案による回 切替装置が適用され
る装置全体の構成を示すブロツク図、第２図は同
装置において現用回線に障害が発生した場合のデ
ータ伝送の流れを示す図、第３図は従来の切替回
路の一例を示す図である。
１……現用回線、２……予備回線、３……自局
装置、４……対向局装置、６，１３……データ送
受信部、８，１５……制御回路、９，１６……タ
イミング発生回路、１１，１８……切替回路。
Figure 1 is a block diagram showing the overall configuration of a device to which the line switching device of the present invention is applied, Figure 2 is a diagram showing the flow of data transmission in the same device when a fault occurs in the working line, and Figure 3 1 is a diagram showing an example of a conventional switching circuit. 1... Working line, 2... Protection line, 3... Own station device, 4... Opposite station device, 6, 13... Data transmitting/receiving section, 8, 15... Control circuit, 9, 16... Timing generation Circuit, 11, 18...Switching circuit.
Claims (1)
め定められた切替条件に基づいて前記現用回線の
何れかを前記予備回線に切替える並列型の回線切
替装置において、 自局装置３と対向局装置４の各々に設けられ、
データを含む所望の信号を送信するとともに相手
側装置からの信号を受信するデータ送受信部６，
１３と、該データ送受信部の各々の対応する各チ
ヤンネルＣＨ１〜ＣＨｎ，ＣＨαの接点を切替え
る切替回路１１，１８と、前記データ送受信部の
受信信号に基づいて前記切替回路の切替条件を判
断して該切替回路に切替指令を出力する制御回路
８、１５と、前記接点の切替え後に送信を行なう
ためのタイミング信号を出力するタイミング発生
回路９，１６とを備えたことを特徴とする回線切
替装置。[Claims for Utility Model Registration] A parallel line switching device that has a plurality of working lines 1 and a protection line 2 and switches any of the working lines to the protection line based on predetermined switching conditions. , provided in each of the own station device 3 and the opposite station device 4,
a data transmitting/receiving unit 6 that transmits a desired signal including data and receives a signal from the other party's device;
13, switching circuits 11 and 18 for switching the contacts of the corresponding channels CH1 to CHn and CHα of each of the data transmitting and receiving sections, and determining switching conditions of the switching circuits based on the received signals of the data transmitting and receiving section. A line switching device comprising control circuits 8 and 15 that output a switching command to the switching circuit, and timing generation circuits 9 and 16 that output a timing signal for transmitting after switching the contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8742490U JPH0446737U (en) | 1990-08-23 | 1990-08-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8742490U JPH0446737U (en) | 1990-08-23 | 1990-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0446737U true JPH0446737U (en) | 1992-04-21 |
Family
ID=31819750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8742490U Pending JPH0446737U (en) | 1990-08-23 | 1990-08-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446737U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114459A (en) * | 1980-02-14 | 1981-09-09 | Nec Corp | Noninterruptive switching device |
| JPS6212216A (en) * | 1985-07-10 | 1987-01-21 | Hitachi Ltd | Optical communication method |
-
1990
- 1990-08-23 JP JP8742490U patent/JPH0446737U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114459A (en) * | 1980-02-14 | 1981-09-09 | Nec Corp | Noninterruptive switching device |
| JPS6212216A (en) * | 1985-07-10 | 1987-01-21 | Hitachi Ltd | Optical communication method |
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