JPS5599894A - Connection system in-station between four wire type terminal units - Google Patents

Connection system in-station between four wire type terminal units

Info

Publication number
JPS5599894A
JPS5599894A JP694979A JP694979A JPS5599894A JP S5599894 A JPS5599894 A JP S5599894A JP 694979 A JP694979 A JP 694979A JP 694979 A JP694979 A JP 694979A JP S5599894 A JPS5599894 A JP S5599894A
Authority
JP
Japan
Prior art keywords
wire type
station
terminal
terminal unit
wire
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
JP694979A
Other languages
Japanese (ja)
Inventor
Bunshiro Igarashi
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
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP694979A priority Critical patent/JPS5599894A/en
Publication of JPS5599894A publication Critical patent/JPS5599894A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To enable in-station connection of two and four wire type, by providing a plurality of two wire type in-station trunks at the output terminal of automatic telephone exchanger and using only in-station trunk of two circuits for four wire connection. CONSTITUTION:When two wire type telephone set SUB(A) is connected to two wire type telephone set SUB(B), connection is made with the two wire type in- station trunk IOT provided with the output side of the switch network SWN of exchanger. Futher, when four wire type facsimile terminal unit (A) is connected to four wire type facsimile terminal unit (B), the transmission terminal of the terminal unit (A) and the reception terminal of terminal unit (B) are connected to one of a plurality of two wire type in-station trunk IOT's provided at the output side of the network SWN, the reception terminal of the terminal unit (A) and the transmission terminal of terminal unit (B) are connected with other trunk IOT to enable connection of two and four wire types.
JP694979A 1979-01-23 1979-01-23 Connection system in-station between four wire type terminal units Pending JPS5599894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP694979A JPS5599894A (en) 1979-01-23 1979-01-23 Connection system in-station between four wire type terminal units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP694979A JPS5599894A (en) 1979-01-23 1979-01-23 Connection system in-station between four wire type terminal units

Publications (1)

Publication Number Publication Date
JPS5599894A true JPS5599894A (en) 1980-07-30

Family

ID=11652476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP694979A Pending JPS5599894A (en) 1979-01-23 1979-01-23 Connection system in-station between four wire type terminal units

Country Status (1)

Country Link
JP (1) JPS5599894A (en)

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