JPS59104658U - Three-way trunk circuit - Google Patents
Three-way trunk circuitInfo
- Publication number
- JPS59104658U JPS59104658U JP19823082U JP19823082U JPS59104658U JP S59104658 U JPS59104658 U JP S59104658U JP 19823082 U JP19823082 U JP 19823082U JP 19823082 U JP19823082 U JP 19823082U JP S59104658 U JPS59104658 U JP S59104658U
- Authority
- JP
- Japan
- Prior art keywords
- pcm
- outputs
- digital exchange
- code
- trunk circuit
- 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
Landscapes
- Interface Circuits In Exchanges (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案三者通話トランク回路を利用した電話交
換機のブロック図、第２図は通話装置と本考案三者通話
トランク回路との接続状態を示すブロック図、第３図乃
至第６図及び第８図は本考案三者通話トランク回路の各
箇所に与えられる信号の波形図、第７図はＰＣＭコード
の流れを示す図である。
３・・・通話装置、５・・・王者通話トランク回路、６
・・・送信側データハイウェイ、７・・・通話メモリ、
９・・・受信側データハイウェイ、１０． １１． １
２゜２３．２４．２５・・・レジスタ、１５． １６．
１７゜１８、 １９． ２０． ２６． ２′７．
２８・・・ゲート回路、２１・・・コード変換テーブル
。
α ・
ｂ
゛ −FIG. 1 is a block diagram of a telephone exchange using the three-party trunk circuit of the present invention, FIG. 2 is a block diagram showing the connection state between the telephone equipment and the three-party trunk circuit of the present invention, and FIGS. 3 to 6 8 is a waveform diagram of the signals applied to each part of the three-way trunk circuit of the present invention, and FIG. 7 is a diagram showing the flow of the PCM code. 3...Telephone device, 5...Champion call trunk circuit, 6
...Sending side data highway, 7...Call memory,
9...Receiving side data highway, 10. 11. 1
2゜23.24.25...Register, 15. 16.
17°18, 19. 20. 26. 2'7.
28...Gate circuit, 21...Code conversion table. α・b゛−
Claims (1)
送られてくる多重化されたＰＣＭ信号を入力するととも
に、これら、のＰＣＭ信号のタイミングを変化させて出
力し、上記多数の電話器の受信器側に伝える形式のデジ
タル式交換器、に付設されて使用する三者通話トランク
回路に於いて、前記入ジタル式交換器の出力側から夫々
所定のタイミングでＰＣＭコードをピックアップするピ
ックアップ回路と、これ等のピックアップ回路の内２個
からＰＣＭコードを受は取り、その受は取ったＰＣＭコ
ードを合成して新たなＰＣＭコードを出力するコード変
換テーブルと、このコード変換テーブルから出力される
ＰＣＭコードを受は取り、７ 所定のタイミングで上記
デジタル式交換器の入力側に出力する出力回路と、に依
って構成された三者通話トランク回路。It is connected to a large number of telephones, inputs multiplexed PCM signals sent from the transmitter side of these telephones, changes the timing of these PCM signals, and outputs them. In a three-way call trunk circuit attached to and used in a digital exchange that transmits information to the receiver side of a telephone, PCM codes are picked up at predetermined timings from the output side of the digital exchange. A pickup circuit, a code conversion table that receives PCM codes from two of these pickup circuits, synthesizes the received PCM codes and outputs a new PCM code, and outputs from this code conversion table. 7. An output circuit which receives the PCM code sent and outputs it to the input side of the digital exchange at a predetermined timing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19823082U JPS59104658U (en) | 1982-12-28 | 1982-12-28 | Three-way trunk circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19823082U JPS59104658U (en) | 1982-12-28 | 1982-12-28 | Three-way trunk circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59104658U true JPS59104658U (en) | 1984-07-14 |
Family
ID=30423785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19823082U Pending JPS59104658U (en) | 1982-12-28 | 1982-12-28 | Three-way trunk circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59104658U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56122567A (en) * | 1980-03-03 | 1981-09-26 | Nec Corp | Digital talking equipment |
-
1982
- 1982-12-28 JP JP19823082U patent/JPS59104658U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56122567A (en) * | 1980-03-03 | 1981-09-26 | Nec Corp | Digital talking equipment |
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