JPS648739A - Two-way amplifier supervising system - Google Patents

Two-way amplifier supervising system

Info

Publication number
JPS648739A
JPS648739A JP16457187A JP16457187A JPS648739A JP S648739 A JPS648739 A JP S648739A JP 16457187 A JP16457187 A JP 16457187A JP 16457187 A JP16457187 A JP 16457187A JP S648739 A JPS648739 A JP S648739A
Authority
JP
Japan
Prior art keywords
amplifier
pilot
outgoing
coupling means
signal
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
Application number
JP16457187A
Other languages
Japanese (ja)
Inventor
Shinichi Noro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16457187A priority Critical patent/JPS648739A/en
Publication of JPS648739A publication Critical patent/JPS648739A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To send fault information of each amplifier to the center without making an effective transmission frequency band narrow by using a pilot signal of a 2-way amplifier as a carrier for the transmission of fault information. CONSTITUTION:When a fault takes place in an outgoing amplifier FTA1 of a 2-way amplifier 1 of a 2-way amplifier group, the output level of an outgoing pilot PL1 is deteriorated. An outgoing level detection circuit 11 detects the level decrease and discriminates it as a fault and gives a detection signal L1 to an ID number generator 12A, which is driven by the detection signal L1 to generate a binary code ID1 able to identify the amplifier 1 and to supply it to a signal coupling means 13. The coupling means 13 coupling means 13 couples an output of an incoming amplifier RTA1 of the amplifier 1 to an incoming pilot PL2 to output a coded pilot signal PL2D to a center 100.
JP16457187A 1987-07-01 1987-07-01 Two-way amplifier supervising system Pending JPS648739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16457187A JPS648739A (en) 1987-07-01 1987-07-01 Two-way amplifier supervising system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16457187A JPS648739A (en) 1987-07-01 1987-07-01 Two-way amplifier supervising system

Publications (1)

Publication Number Publication Date
JPS648739A true JPS648739A (en) 1989-01-12

Family

ID=15795699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16457187A Pending JPS648739A (en) 1987-07-01 1987-07-01 Two-way amplifier supervising system

Country Status (1)

Country Link
JP (1) JPS648739A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH039625A (en) * 1989-06-07 1991-01-17 Kokusai Denshin Denwa Co Ltd <Kdd> Fault supervising system for optical communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH039625A (en) * 1989-06-07 1991-01-17 Kokusai Denshin Denwa Co Ltd <Kdd> Fault supervising system for optical communication system

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