JPH0475489U - - Google Patents
Info
- Publication number
- JPH0475489U JPH0475489U JP11914190U JP11914190U JPH0475489U JP H0475489 U JPH0475489 U JP H0475489U JP 11914190 U JP11914190 U JP 11914190U JP 11914190 U JP11914190 U JP 11914190U JP H0475489 U JPH0475489 U JP H0475489U
- Authority
- JP
- Japan
- Prior art keywords
- signal receiver
- office line
- line trunk
- pbr
- dial pulse
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Interface Circuits In Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Description
第１図はこの考案の一実施例によるＤＩＤ局線
トランクを示すブロツク図、第２図は従来のＤＩ
Ｄ局線トランクを示すブロツク図である。
１は通信端末Ａ、２は局交換施設、３はＤＩＤ
局線トランク、４はＰＢＸ、５は通信端末Ｂ、６
はＰＢＲ（プツシユボタン信号レシーバ）、７は
ＤＰＲ（ダイアルパルス信号レシーバ）。なお、
図中、同一符号は同一、又は相当部分を示す。
FIG. 1 is a block diagram showing a DID office line trunk according to an embodiment of this invention, and FIG. 2 is a block diagram showing a conventional DI trunk.
FIG. 3 is a block diagram showing a D office line trunk. 1 is communication terminal A, 2 is central office switching facility, 3 is DID
Office line trunk, 4 is PBX, 5 is communication terminal B, 6
is PBR (push button signal receiver), and 7 is DPR (dial pulse signal receiver). In addition,
In the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
呼び出すサービスを提供するＤＩＤ（ダイレクト
インダイアル）局線トランクにおいて、ＰＢＲ（
プツシユボタン信号レシーバ）だけでなく、ＤＰ
Ｒ（ダイアルパルス信号レシーバ）も備えたこと
を特徴とするＤＩＤ局線トランク。 PBR (
pushbutton signal receiver) as well as DP
A DID office line trunk characterized by also being equipped with an R (dial pulse signal receiver).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11914190U JPH0475489U (en) | 1990-11-13 | 1990-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11914190U JPH0475489U (en) | 1990-11-13 | 1990-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0475489U true JPH0475489U (en) | 1992-07-01 |
Family
ID=31867119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11914190U Pending JPH0475489U (en) | 1990-11-13 | 1990-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0475489U (en) |
-
1990
- 1990-11-13 JP JP11914190U patent/JPH0475489U/ja active Pending