JPS531A - Terminal device for telecommunication - Google Patents

Terminal device for telecommunication

Info

Publication number
JPS531A
JPS531A JP6740777A JP6740777A JPS531A JP S531 A JPS531 A JP S531A JP 6740777 A JP6740777 A JP 6740777A JP 6740777 A JP6740777 A JP 6740777A JP S531 A JPS531 A JP S531A
Authority
JP
Japan
Prior art keywords
telecommunication
terminal device
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.)
Pending
Application number
JP6740777A
Other languages
Japanese (ja)
Inventor
Arufuretsudo Giidaa Yuuzefu
Jiyosefu Baro Furanku
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of JPS531A publication Critical patent/JPS531A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
    • H04M1/745—Protection devices or circuits for voltages surges on the line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Elimination Of Static Electricity (AREA)
  • Telephone Set Structure (AREA)
JP6740777A 1976-06-23 1977-06-09 Terminal device for telecommunication Pending JPS531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA255,533A CA1036280A (en) 1976-06-23 1976-06-23 Electrostatic protection for a telecommunications terminal apparatus

Publications (1)

Publication Number Publication Date
JPS531A true JPS531A (en) 1978-01-05

Family

ID=4106269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6740777A Pending JPS531A (en) 1976-06-23 1977-06-09 Terminal device for telecommunication

Country Status (5)

Country Link
JP (1) JPS531A (en)
BE (1) BE855954A (en)
CA (1) CA1036280A (en)
DE (1) DE2718806C2 (en)
GB (1) GB1550758A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5988778U (en) * 1983-07-14 1984-06-15 オムロン株式会社 User control device
JPH01188509A (en) * 1987-11-23 1989-07-27 Hoechst Celanese Corp Radiation curable coating composition based on silica/vinyl functional silanol dispersion
JPH0287749A (en) * 1988-09-26 1990-03-28 Toshiba Lighting & Technol Corp Talking equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838229A (en) * 1973-04-16 1974-09-24 Bell Northern Research Ltd Telephone sets and removable covers therefore
US3936602A (en) * 1974-10-23 1976-02-03 Northern Electric Company Limited Full duplex data transmission system using two speeds of diphase signal for simplified sync

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5988778U (en) * 1983-07-14 1984-06-15 オムロン株式会社 User control device
JPS5929242Y2 (en) * 1983-07-14 1984-08-22 オムロン株式会社 User control device
JPH01188509A (en) * 1987-11-23 1989-07-27 Hoechst Celanese Corp Radiation curable coating composition based on silica/vinyl functional silanol dispersion
JPH0287749A (en) * 1988-09-26 1990-03-28 Toshiba Lighting & Technol Corp Talking equipment

Also Published As

Publication number Publication date
GB1550758A (en) 1979-08-22
DE2718806A1 (en) 1978-01-05
DE2718806C2 (en) 1986-07-03
CA1036280A (en) 1978-08-08
BE855954A (en) 1977-12-21

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