JPS6214159B2 - - Google Patents

Info

Publication number
JPS6214159B2
JPS6214159B2 JP54012971A JP1297179A JPS6214159B2 JP S6214159 B2 JPS6214159 B2 JP S6214159B2 JP 54012971 A JP54012971 A JP 54012971A JP 1297179 A JP1297179 A JP 1297179A JP S6214159 B2 JPS6214159 B2 JP S6214159B2
Authority
JP
Japan
Prior art keywords
circuit
relay
trunk
current
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.)
Expired
Application number
JP54012971A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55105485A (en
Inventor
Mitsuo Suzuki
Isamu Yamane
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.)
NEC Corp
Original Assignee
Nippon Electric Co 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP1297179A priority Critical patent/JPS55105485A/ja
Publication of JPS55105485A publication Critical patent/JPS55105485A/ja
Publication of JPS6214159B2 publication Critical patent/JPS6214159B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
JP1297179A 1979-02-07 1979-02-07 Trunk circuit of automatic telephone exchange Granted JPS55105485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1297179A JPS55105485A (en) 1979-02-07 1979-02-07 Trunk circuit of automatic telephone exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1297179A JPS55105485A (en) 1979-02-07 1979-02-07 Trunk circuit of automatic telephone exchange

Publications (2)

Publication Number Publication Date
JPS55105485A JPS55105485A (en) 1980-08-13
JPS6214159B2 true JPS6214159B2 (enrdf_load_stackoverflow) 1987-03-31

Family

ID=11820108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1297179A Granted JPS55105485A (en) 1979-02-07 1979-02-07 Trunk circuit of automatic telephone exchange

Country Status (1)

Country Link
JP (1) JPS55105485A (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024351A (en) * 1976-01-26 1977-05-17 Bell Telephone Laboratories, Incorporated Telephone line battery boost circuit
JPS53128208A (en) * 1977-04-14 1978-11-09 Nec Corp Ringer signal detector circuit

Also Published As

Publication number Publication date
JPS55105485A (en) 1980-08-13

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