AR206613A1 - Aparato para indicar en una unidad terminal de oficina central el estado operativo de un terminal de estacion remota de telefonia por onda portadora - Google Patents

Aparato para indicar en una unidad terminal de oficina central el estado operativo de un terminal de estacion remota de telefonia por onda portadora

Info

Publication number
AR206613A1
AR206613A1 AR256322A AR25632274A AR206613A1 AR 206613 A1 AR206613 A1 AR 206613A1 AR 256322 A AR256322 A AR 256322A AR 25632274 A AR25632274 A AR 25632274A AR 206613 A1 AR206613 A1 AR 206613A1
Authority
AR
Argentina
Prior art keywords
indicating
carrier wave
central office
operating status
wave remote
Prior art date
Application number
AR256322A
Other languages
English (en)
Spanish (es)
Original Assignee
Seismograph Service 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 Seismograph Service Corp filed Critical Seismograph Service Corp
Application granted granted Critical
Publication of AR206613A1 publication Critical patent/AR206613A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/16—Monitoring arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Devices For Supply Of Signal Current (AREA)
AR256322A 1973-10-29 1974-01-01 Aparato para indicar en una unidad terminal de oficina central el estado operativo de un terminal de estacion remota de telefonia por onda portadora AR206613A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00410745A US3840706A (en) 1973-10-29 1973-10-29 Remote test circuit for carrier telephones

Publications (1)

Publication Number Publication Date
AR206613A1 true AR206613A1 (es) 1976-08-06

Family

ID=23626041

Family Applications (1)

Application Number Title Priority Date Filing Date
AR256322A AR206613A1 (es) 1973-10-29 1974-01-01 Aparato para indicar en una unidad terminal de oficina central el estado operativo de un terminal de estacion remota de telefonia por onda portadora

Country Status (8)

Country Link
US (1) US3840706A (ja)
JP (1) JPS5734715B2 (ja)
AR (1) AR206613A1 (ja)
BR (1) BR7408869D0 (ja)
CA (1) CA1000880A (ja)
GB (1) GB1450978A (ja)
IL (1) IL45761A (ja)
OA (1) OA04837A (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299008A (en) * 1976-02-16 1977-08-19 Toshiba Corp Calling signal system
US4045624A (en) * 1976-04-02 1977-08-30 Carrier Telephone Corporation Of America, Inc. Continuous monitoring in carrier telephone systems
US4170722A (en) * 1978-02-17 1979-10-09 Gte Automatic Electric Laboratories, Incorporated Apparatus and method for remote testing of a loop transmission path
JPS55112071A (en) * 1979-02-22 1980-08-29 Nec Corp Dispatching telephone system
US4429391A (en) 1981-05-04 1984-01-31 Bell Telephone Laboratories, Incorporated Fault and error detection arrangement
JPS5854770A (ja) * 1981-09-27 1983-03-31 Sanii Denshi Kk Ｆｍ搬送波式インタ−ホンの通信方式
JPS5863261A (ja) * 1981-10-12 1983-04-15 Nikko Denki Seisakusho:Kk 一斉通話指令装置
US4698501A (en) * 1985-05-16 1987-10-06 Nl Industries, Inc. System for simultaneous gamma-gamma formation density logging while drilling
US5412709A (en) * 1992-06-24 1995-05-02 Charter Leasing Corporation Digital telephone station line controller

Also Published As

Publication number Publication date
JPS5734715B2 (ja) 1982-07-24
IL45761A (en) 1976-11-30
IL45761A0 (en) 1974-12-31
GB1450978A (en) 1976-09-29
BR7408869D0 (pt) 1975-08-26
JPS5075303A (ja) 1975-06-20
AU7341774A (en) 1976-03-25
OA04837A (fr) 1980-10-31
US3840706A (en) 1974-10-08
CA1000880A (en) 1976-11-30

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