JPS6481596A - Extension communication system in isdn user bus - Google Patents
Extension communication system in isdn user busInfo
- 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
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.
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)
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 |
-
1987
- 1987-09-24 JP JP23972287A patent/JPS6481596A/en active Pending
Cited By (2)
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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