JPS5491017A - Remote control supervisory circuit for variable equalizer - Google Patents
Remote control supervisory circuit for variable equalizerInfo
- Publication number
- JPS5491017A JPS5491017A JP15795277A JP15795277A JPS5491017A JP S5491017 A JPS5491017 A JP S5491017A JP 15795277 A JP15795277 A JP 15795277A JP 15795277 A JP15795277 A JP 15795277A JP S5491017 A JPS5491017 A JP S5491017A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- remote control
- register
- supervisory circuit
- variable equalizer
- 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
Abstract
PURPOSE: To improve the reliability of a submarine cable repeating system by making an adequate process possible at a ground station by sending out an alarm signal to a circuit corresponding to a fault in a repeater.
CONSTITUTION: A control signal arriving together with a main signal is extracted by BPF4, amplified 5 and made into pulses in circuit 6 before being supplied to register 7; and then, equalizer-setting information is read out and fixed equalization is performed. Discriminator circuit 9 detects abnormal information in register 7 and comparative decision circuit 10 detects the abnormal level of amplifier 5, so that an alarm signal will be sent out to the circuit corresponding to both abnormality detection outputs.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15795277A JPS5491017A (en) | 1977-12-28 | 1977-12-28 | Remote control supervisory circuit for variable equalizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15795277A JPS5491017A (en) | 1977-12-28 | 1977-12-28 | Remote control supervisory circuit for variable equalizer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5491017A true JPS5491017A (en) | 1979-07-19 |
Family
ID=15661040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15795277A Pending JPS5491017A (en) | 1977-12-28 | 1977-12-28 | Remote control supervisory circuit for variable equalizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5491017A (en) |
-
1977
- 1977-12-28 JP JP15795277A patent/JPS5491017A/en active Pending
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