JPS5685949A - Carrier-frequency terminal equipment - Google Patents
Carrier-frequency terminal equipmentInfo
- Publication number
- JPS5685949A JPS5685949A JP16316379A JP16316379A JPS5685949A JP S5685949 A JPS5685949 A JP S5685949A JP 16316379 A JP16316379 A JP 16316379A JP 16316379 A JP16316379 A JP 16316379A JP S5685949 A JPS5685949 A JP S5685949A
- Authority
- JP
- Japan
- Prior art keywords
- cut
- carrier
- terminal equipment
- sigr
- frequency terminal
- 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.)
- Granted
Links
Landscapes
- Monitoring And Testing Of Exchanges (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
PURPOSE: To prevent the sound of a bell of each telephone set when the radio circuit has been cut off, by stopping a sending of the SIGR signal by the alarm information of cut-off of the radio circuit, from the radio apparatus, in the carrier- frequency terminal equipment of tone-on idle, which is connected to the multiplex radio apparatus.
CONSTITUTION: The carrier-frequency terminal equipment 17 is connected to the base band signal line 4 from the multiplex radio apparatus 5 and the receiving alarm information line 10, the base band signal is divided into each telephone channel 8 by the carrier-frequency terminal equipment 3, and the alarm information is amplified 11 and operates the relay 12. Since the device 11 is tone-on idle, in case the radio circuit is cut off, the SIGR signal becomes a service state even if the device is in a service state. In this case, the receiving alarm information of cut-off of the radio circuit is received, the relay 12 is operated, the SIGR signal line is opened by the contacts rl1∼rln, and the SIGR signal is made a waiting state. In this way, when the radio circuit is cut off, it is prevented that bells of each telephone set ring all together.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16316379A JPS5685949A (en) | 1979-12-14 | 1979-12-14 | Carrier-frequency terminal equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16316379A JPS5685949A (en) | 1979-12-14 | 1979-12-14 | Carrier-frequency terminal equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5685949A true JPS5685949A (en) | 1981-07-13 |
JPH0140538B2 JPH0140538B2 (en) | 1989-08-29 |
Family
ID=15768424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16316379A Granted JPS5685949A (en) | 1979-12-14 | 1979-12-14 | Carrier-frequency terminal equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5685949A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0475455U (en) * | 1990-11-13 | 1992-07-01 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115313A (en) * | 1974-07-29 | 1976-02-06 | Fujitsu Ltd | Pcm kaisenno shogaijiseigyohoshiki |
-
1979
- 1979-12-14 JP JP16316379A patent/JPS5685949A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115313A (en) * | 1974-07-29 | 1976-02-06 | Fujitsu Ltd | Pcm kaisenno shogaijiseigyohoshiki |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0475455U (en) * | 1990-11-13 | 1992-07-01 |
Also Published As
Publication number | Publication date |
---|---|
JPH0140538B2 (en) | 1989-08-29 |
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