JPH0477161A - Pcm terminal station device - Google Patents
Pcm terminal station deviceInfo
- Publication number
- JPH0477161A JPH0477161A JP18856090A JP18856090A JPH0477161A JP H0477161 A JPH0477161 A JP H0477161A JP 18856090 A JP18856090 A JP 18856090A JP 18856090 A JP18856090 A JP 18856090A JP H0477161 A JPH0477161 A JP H0477161A
- Authority
- JP
- Japan
- Prior art keywords
- conversion circuit
- circuit
- switching
- channel
- analog
- 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
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 238000010586 diagram Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 101150103044 pcm3 gene Proteins 0.000 description 1
Landscapes
- Monitoring And Testing Of Exchanges (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はＰＣＭ端局装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a PCM terminal device.
従来のＰＣＭ端局装置では、現用Ａ／Ｄ −Ｄ／Ａ変換
回路に障害が発生したとき、予備用Ａ／Ｄ −Ｄ／Ａ変
換回路にパッケージ単位での交換が行なわれる。第２図
は従来のＰＣＭ端局装置の交換を示す。ＰＣＭ端局装置
３０はアナログ交換機４０と複数のアナログチャンネル
３７，３８．３９によりインターフェースする。ＰＣＭ
３０ＣＨ方式の場合、５つのチャンネルパッケージ３１
が搭載され、それぞれのパッケージ３１には６チヤンネ
ル分のＡ／Ｄ −Ｄ／Ａ変換回路３Ｂ、３４゜３５が実
装される。なお、第２図において、３２はチャンネル制
御回路、３６は共通制御部、及び４１はポータプルコン
トロールターミナルである。In conventional PCM terminal equipment, when a failure occurs in the current A/D-D/A conversion circuit, the circuit is replaced in units of packages with a backup A/D-D/A conversion circuit. FIG. 2 shows the replacement of a conventional PCM terminal equipment. PCM terminal equipment 30 interfaces with analog exchange 40 via a plurality of analog channels 37, 38, 39. PCM
For 30CH system, 5 channel packages 31
Each package 31 is equipped with A/D-D/A conversion circuits 3B, 34.degree. 35 for six channels. In FIG. 2, 32 is a channel control circuit, 36 is a common control section, and 41 is a portable control terminal.
上述した従来のＰＣＭ端局装置では、同一構成単位のチ
ャンネルパッケージの中の１つのＡ／Ｄ −Ｄ／Ａ変換
回路が障害となった場合、特に当該チャンネルが最重要
回線として使用されていると、他の５チヤンネルを無視
してでも予備のチャンネルパッケージと交換しなければ
ならないという欠点がある。In the above-mentioned conventional PCM terminal equipment, if one A/D-D/A conversion circuit in a channel package of the same structural unit becomes a failure, especially if that channel is used as the most important line. , it has the disadvantage that it has to be replaced with a spare channel package even if the other 5 channels are ignored.
本発明のＰＣＭ端局装置は、複数のアナログチャンネル
にそれぞれ対応しそれぞれ個別に切替動作可能な複数の
切替回路と、対応する前記切替回路を介して前記複数の
アナログチャンネルにそれぞれ接続されている同一構成
単位の複数の現用Ａ／Ｄ −Ｄ／Ａ変換回路と、前記複
数の切替回路のいずれかに選択的に接続される予備用Ａ
／Ｄ −Ｄ／Ａ変換回路とを備え、前記現用Ａ／Ｄ −
Ｄ／Ａ変換回路のいずかに障害が発生したとき外部から
の切替指令により対応する前記切替回路を動作させて障
害の前記現用Ａ／Ｄ −Ｄ／Ａ変換回路に接続されてい
る前記アナログチャンネルを前記予備用Ａ／Ｄ −Ｄ／
Ａ変換回路に切替接続する構成である。The PCM terminal device of the present invention includes a plurality of switching circuits each corresponding to a plurality of analog channels and capable of switching operations individually, and a plurality of switching circuits each connected to the plurality of analog channels via the corresponding switching circuits. a plurality of active A/D-D/A conversion circuits of the constituent units and a backup A selectively connected to any of the plurality of switching circuits;
/D-D/A conversion circuit, said current A/D-
When a fault occurs in any of the D/A conversion circuits, the corresponding switching circuit is operated in response to a switching command from the outside, and the analog connected to the faulty working A/D-D/A conversion circuit is operated. Connect the channels to the spare A/D-D/
It is configured to be switched and connected to the A conversion circuit.
〔実施例〕 次に、本発明について図面を参照して説明する。〔Example〕 Next, the present invention will be explained with reference to the drawings.
本発明の一実施例を示す第１図を参照すると、ＰＣＭ３
０ＣＨ方式のＰＣＭ端局装置１はアナログ交換機１７と
アナログチャンネル１４，１５゜１６を介してインター
フェースし、共通制御部３と５つのチャンネルパッケー
ジ２とから構成される。現用Ａ／Ｄ・Ｄ／Ａ変換回路５
．６．７と切替回路８，９．１０とはチャンネルパッケ
ージ２当りそれぞれ６回路で構成される。共通制御部３
は予備用Ａ／Ｄ −Ｄ／Ａ変換回路１１と共通制御回路
１２とから構成される。たとえば、最重要回線であるチ
ャンネル１４の変換回路５に障害が発生した場合、ポー
タプルコントロールターミナル１３からの切替命令によ
り共通制御部３の制御回路１２とチャンネルパッケージ
２の制御回路４とを介して切替回路８が駆動され、予備
用Ａ／Ｄ・Ｄ／Ａ変換回路１１にチャンネル１４が接続
される。Referring to FIG. 1 showing one embodiment of the present invention, PCM3
The 0CH system PCM terminal device 1 interfaces with an analog exchange 17 via analog channels 14, 15 and 16, and is composed of a common control section 3 and five channel packages 2. Current A/D/D/A conversion circuit 5
．． 6.7 and the switching circuits 8 and 9.10 each consist of six circuits per channel package 2. Common control unit 3
is composed of a backup A/D-D/A conversion circuit 11 and a common control circuit 12. For example, if a failure occurs in the conversion circuit 5 of channel 14, which is the most important line, switching is performed via the control circuit 12 of the common control unit 3 and the control circuit 4 of the channel package 2 in response to a switching command from the portable control terminal 13. The circuit 8 is driven, and the channel 14 is connected to the backup A/D/D/A conversion circuit 11.
Ｃ発明の効果〕
以上説明したように本発明によれば、同一構成単位の現
用Ａ／Ｄ −Ｄ／Ａ変換回路のいずれかに障害が発生し
た場合、他の正常チャンネルに全く影響を与えることな
く、予備用Ａ／Ｄ −Ｄ／Ａ変換回路に障害に対応した
チャンネルを接続して通信を行なわせることができる。C. Effects of the Invention] As explained above, according to the present invention, if a failure occurs in any of the currently used A/D-D/A conversion circuits of the same structural unit, it will not affect other normal channels at all. Instead, communication can be performed by connecting a channel corresponding to the failure to the backup A/D-D/A conversion circuit.
第１図は本発明の一実施例を示す構成図、第２図は従来
例を示す構成図である。
１・・・ＰＣＭ端局装置、２・・・チャンネルパッケー
ジ、３・・・共通制御部、４・・・チャンネル制御回路
、５．６．７・・・現用Ａ／Ｄ −Ｄ／Ａ変換回路、８
゜９、ｌＯ・・・切替回路、１１・・・予備用Ａ／Ｄ
−Ｄ／Ａ変換回路、１２・・・共通制御回路、１３・・
・ポータプルコントロールターミナル、１４．１５．１
６・・・アナログチャンネル。FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1... PCM terminal device, 2... Channel package, 3... Common control section, 4... Channel control circuit, 5.6.7... Current A/D-D/A conversion circuit , 8
゜9, lO...Switching circuit, 11...Spare A/D
-D/A conversion circuit, 12... common control circuit, 13...
・Portable control terminal, 14.15.1
6...Analog channel.
Claims (1)
別に切替動作可能な複数の切替回路と、対応する前記切
替回路を介して前記複数のアナログチャンネルにそれぞ
れ接続されている同一構成単位の複数の現用Ａ／Ｄ・Ｄ
／Ａ変換回路と、前記複数の切替回路のいずれかに選択
的に接続される予備用Ａ／Ｄ・Ｄ／Ａ変換回路とを備え
、前記現用Ａ／Ｄ・Ｄ／Ａ変換回路のいずかに障害が発
生したとき外部からの切替指令により対応する前記切替
回路を動作させて障害の前記現用Ａ／Ｄ・Ｄ／Ａ変換回
路に接続されている前記アナログチャンネルを前記予備
用Ａ／Ｄ・Ｄ／Ａ変換回路に切替接続することを特徴と
するＰＣＭ端局装置。A plurality of switching circuits each corresponding to a plurality of analog channels and capable of switching operations individually, and a plurality of current A/Ds of the same structural unit each connected to the plurality of analog channels via the corresponding switching circuits.・D
/A conversion circuit, and a backup A/D/D/A conversion circuit that is selectively connected to any of the plurality of switching circuits; When a failure occurs, the corresponding switching circuit is operated in response to a switching command from the outside, and the analog channel connected to the faulty working A/D/D/A conversion circuit is switched to the backup A/D. - A PCM terminal device characterized by switching connection to a D/A conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18856090A JPH0477161A (en) | 1990-07-17 | 1990-07-17 | Pcm terminal station device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18856090A JPH0477161A (en) | 1990-07-17 | 1990-07-17 | Pcm terminal station device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0477161A true JPH0477161A (en) | 1992-03-11 |
Family
ID=16225827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18856090A Pending JPH0477161A (en) | 1990-07-17 | 1990-07-17 | Pcm terminal station device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0477161A (en) |
-
1990
- 1990-07-17 JP JP18856090A patent/JPH0477161A/en active Pending
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