JPS5272517A - Fault detection of tdma end-office unit - Google Patents

Fault detection of tdma end-office unit

Info

Publication number
JPS5272517A
JPS5272517A JP50148820A JP14882075A JPS5272517A JP S5272517 A JPS5272517 A JP S5272517A JP 50148820 A JP50148820 A JP 50148820A JP 14882075 A JP14882075 A JP 14882075A JP S5272517 A JPS5272517 A JP S5272517A
Authority
JP
Japan
Prior art keywords
tdma
fault detection
office unit
office
comparator
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
Application number
JP50148820A
Other languages
Japanese (ja)
Other versions
JPS58696B2 (en
Inventor
Masahiko Goto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP50148820A priority Critical patent/JPS58696B2/en
Publication of JPS5272517A publication Critical patent/JPS5272517A/en
Publication of JPS58696B2 publication Critical patent/JPS58696B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/212—Time-division multiple access [TDMA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE:To obtain a simply-constructed fault detection syitem in which the idle channel of the PCM data end-office belonging to the TDMA end-office unit is equipped with a low-speed continuous test data generator-comparator, without using the high-speed test-burst transmitter, receiver and comparator.
JP50148820A 1975-12-13 1975-12-13 TDMA Expired JPS58696B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50148820A JPS58696B2 (en) 1975-12-13 1975-12-13 TDMA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50148820A JPS58696B2 (en) 1975-12-13 1975-12-13 TDMA

Publications (2)

Publication Number Publication Date
JPS5272517A true JPS5272517A (en) 1977-06-17
JPS58696B2 JPS58696B2 (en) 1983-01-07

Family

ID=15461440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50148820A Expired JPS58696B2 (en) 1975-12-13 1975-12-13 TDMA

Country Status (1)

Country Link
JP (1) JPS58696B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202641A (en) * 1982-05-21 1983-11-25 Nec Corp Master station device of time division multi-direction multiplex communication system
JPH03286636A (en) * 1990-04-03 1991-12-17 Nec Corp Monitor circuit
JPH0774713A (en) * 1993-08-31 1995-03-17 Nec Corp Local digital loopback control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202641A (en) * 1982-05-21 1983-11-25 Nec Corp Master station device of time division multi-direction multiplex communication system
JPH03286636A (en) * 1990-04-03 1991-12-17 Nec Corp Monitor circuit
JPH0774713A (en) * 1993-08-31 1995-03-17 Nec Corp Local digital loopback control system

Also Published As

Publication number Publication date
JPS58696B2 (en) 1983-01-07

Similar Documents

Publication Publication Date Title
JPS5272517A (en) Fault detection of tdma end-office unit
JPS5255831A (en) Dot-type printing system
JPS52130225A (en) Signal transmission unit
JPS5255418A (en) Low-speed data communication system and its equipment
JPS5229591A (en) Concentrated monitoring device
JPS5260507A (en) Receiver
JPS5248905A (en) Head phone unit
JPS5340210A (en) Submarine repeater
JPS52154974A (en) Buffer
JPS527706A (en) Outward head sheet recorder/player
JPS5375714A (en) Channel cisplay unit for transmission and reception
JPS524718A (en) Receiver
JPS52116006A (en) Plug equipped with privacy talk device for plug-in telephone set
JPS5250111A (en) 2-line system pulse signal transimission unit
JPS52109847A (en) Digital filter
JPS5250108A (en) Charge pulse deletion system
JPS52109319A (en) Receiver equipped with adapted type digital modem
JPS5362401A (en) Circuit for modulator and demodulator
JPS5242039A (en) Pulse width signal convertor for digital signals
JPS5419731A (en) Holder unit for conduction transmitter
JPS53126807A (en) Selective inter-call receiver
JPS5363801A (en) Call signal receiving unit
JPS51148454A (en) Light-wave rader
JPS5357903A (en) Privacy communication set
JPS5289032A (en) Tape carrier