JPH0476741U - - Google Patents
Info
- Publication number
- JPH0476741U JPH0476741U JP12143090U JP12143090U JPH0476741U JP H0476741 U JPH0476741 U JP H0476741U JP 12143090 U JP12143090 U JP 12143090U JP 12143090 U JP12143090 U JP 12143090U JP H0476741 U JPH0476741 U JP H0476741U
- Authority
- JP
- Japan
- Prior art keywords
- call path
- station
- modem
- call
- unused
- 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
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Radio Relay Systems (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Description
第１図は、この考案の一実施例による通話路自
動切換システムを示すブロツク図、第２図、第３
図はこの考案の他の実施例による通話路自動切換
システムを示すブロツク図、第４図は従来の内線
延長型通話方式を使用した衛星通信システムを示
すブロツク図である。１は地球局Ａ、２は交換機
、３，１３，１４，１５は電話機、４，１０は端
局設備、５，１２は変復調装置、６，１１はＩＦ
分配合成部、７，９は送受信装置、１６，１７，
１８は変復調部、１９，２０，２１は信号変換部
、２２，２３，２４はレピータ部、２５はＳＳ監
視線、２６は障害監視線、２７は制御線、２８は
監視制御装置、２９は音声レベル検出回路、３０
は音声信号線、３１は音声の有無監視信号線、３
２は優先順位記憶回路。なお、図中、同一符号は
同一、又は相当部分を示す。
FIG. 1 is a block diagram showing an automatic communication path switching system according to an embodiment of this invention, and FIGS.
FIG. 4 is a block diagram showing an automatic communication path switching system according to another embodiment of the present invention, and FIG. 4 is a block diagram showing a satellite communication system using a conventional extension line communication system. 1 is earth station A, 2 is an exchange, 3, 13, 14, 15 are telephones, 4, 10 are terminal equipment, 5, 12 are modem equipment, 6, 11 are IF
distribution/synthesis unit; 7, 9 are transmitting/receiving devices; 16, 17;
18 is a modem unit, 19, 20, 21 is a signal converter unit, 22, 23, 24 is a repeater unit, 25 is an SS monitoring line, 26 is a fault monitoring line, 27 is a control line, 28 is a monitoring control device, 29 is an audio level detection circuit, 30
is an audio signal line, 31 is an audio presence/absence monitoring signal line, 3
2 is a priority storage circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
ムにおいて、交換機側の発信者が１回のダイヤリ
ングで相手局の未使用電話機を呼び出せるように
、相手局の変復調装置が障害時、当該通話路を未
使用通話路に自動的に切換えることを特徴とする
通話路自動切換システム。 In a satellite communication system that uses an extension extension telephone system, when the modem of the other station has a problem, the call path is left unused so that the caller on the exchange side can call an unused telephone at the other station with one dialing. An automatic call path switching system characterized by automatically switching to the used call path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12143090U JPH0476741U (en) | 1990-11-19 | 1990-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12143090U JPH0476741U (en) | 1990-11-19 | 1990-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0476741U true JPH0476741U (en) | 1992-07-03 |
Family
ID=31869287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12143090U Pending JPH0476741U (en) | 1990-11-19 | 1990-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0476741U (en) |
-
1990
- 1990-11-19 JP JP12143090U patent/JPH0476741U/ja active Pending
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