JPS6481596A - Extension communication system in isdn user bus - Google Patents

Extension communication system in isdn user bus

Info

Publication number
JPS6481596A
JPS6481596A JP23972287A JP23972287A JPS6481596A JP S6481596 A JPS6481596 A JP S6481596A JP 23972287 A JP23972287 A JP 23972287A JP 23972287 A JP23972287 A JP 23972287A JP S6481596 A JPS6481596 A JP S6481596A
Authority
JP
Japan
Prior art keywords
signal
line
subscriber
extension communication
sent
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
JP23972287A
Other languages
Japanese (ja)
Inventor
Kentaro Tokikuni
Fujio Amamiya
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP23972287A priority Critical patent/JPS6481596A/en
Publication of JPS6481596A publication Critical patent/JPS6481596A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To realize the extension communication between plural terminal equipments connected to a subscriber's wiring by adding a signal reception function on an incoming signal line and a signal sending function to an outgoing signal line in a 4-wire form subscriber's respectively. CONSTITUTION:A signal is sent to an incoming signal line (T line) from terminal equipments TE(#1), TE(#2) when 2-calls of user bus are used for a conventional external communication in the 4-wire bus form subscriber's wiring (user bus) forming the ISDN user network interface, the signal is sent from a network terminator NT1 to the subscriber line and the signal from the subscriber line is received by an outgoing signal line (R line) via the NT1. In applying the extension communication between the TE(#1) and TE(#2), the TE(#1) sends a signal to the T line and the signal of the T line is received by the TE(#2) as it is, and the signal is sent to the R line by the TE(#2) and it is received by the TE(#1) as it is.
JP23972287A 1987-09-24 1987-09-24 Extension communication system in isdn user bus Pending JPS6481596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23972287A JPS6481596A (en) 1987-09-24 1987-09-24 Extension communication system in isdn user bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23972287A JPS6481596A (en) 1987-09-24 1987-09-24 Extension communication system in isdn user bus

Publications (1)

Publication Number Publication Date
JPS6481596A true JPS6481596A (en) 1989-03-27

Family

ID=17048949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23972287A Pending JPS6481596A (en) 1987-09-24 1987-09-24 Extension communication system in isdn user bus

Country Status (1)

Country Link
JP (1) JPS6481596A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02260996A (en) * 1989-03-31 1990-10-23 Aiphone Co Ltd Isdn terminal adapter
JPH03148996A (en) * 1989-07-13 1991-06-25 Alcatel Nv Universal isdn subscriver line module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02260996A (en) * 1989-03-31 1990-10-23 Aiphone Co Ltd Isdn terminal adapter
JPH03148996A (en) * 1989-07-13 1991-06-25 Alcatel Nv Universal isdn subscriver line module

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