JPH05300178A - Power feeding system for line corresponding part - Google Patents
Power feeding system for line corresponding partInfo
- Publication number
- JPH05300178A JPH05300178A JP4100970A JP10097092A JPH05300178A JP H05300178 A JPH05300178 A JP H05300178A JP 4100970 A JP4100970 A JP 4100970A JP 10097092 A JP10097092 A JP 10097092A JP H05300178 A JPH05300178 A JP H05300178A
- Authority
- JP
- Japan
- Prior art keywords
- level conversion
- conversion unit
- relay
- unit
- signal level
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 238000001514 detection method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Computer And Data Communications (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Communication Control (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、パケット交換機の回線
対応部に関し、特に、レベル変換部への給電方式に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line interface of a packet switch, and more particularly to a power supply system for a level converter.
【０００２】[0002]
【従来の技術】従来のパケット交換機の回線対応部のレ
ベル変換部は、図２に示すように、回線対応部の送受信
処理を行う論理部６とレベル変換部７より成る。レベル
変換部７は、送信信号レベル変換部１と受信信号レベル
変換部２を有し、それぞれ給電路８を介して、電源の供
給を受けている。送信信号レベル変換部１は、論理部６
より送信信号（ＴＴＬレベル）９を受け、電気レベルの
変換を行って、ＤＣＥ５に対して、送信信号３を出力す
る。受信信号レベル変換部２はＤＣＥ５より受信信号４
を受けて電気レベルの変換を行って論理部６へ、受信信
号（ＴＴＬレベル）１０を出力する。2. Description of the Related Art As shown in FIG. 2, a level conversion unit of a line interface of a conventional packet switch comprises a logic unit 6 for performing transmission / reception processing of the line interface and a level converter 7. The level conversion unit 7 includes a transmission signal level conversion unit 1 and a reception signal level conversion unit 2, and each is supplied with power via a power feeding path 8. The transmission signal level conversion unit 1 includes a logic unit 6
Further, the transmission signal (TTL level) 9 is received, the electric level is converted, and the transmission signal 3 is output to the DCE 5. The received signal level converter 2 receives the received signal 4 from the DCE 5.
In response to this, the electric level is converted and the reception signal (TTL level) 10 is output to the logic unit 6.
【０００３】[0003]
【発明が解決しようとする課題】この従来の回線対応部
への給電方式では、該当回線が通信中でないときも、更
に、未使用中すなわちＤＣＥと接続されていないとき
も、レベル変換部へ給電されているため、むだに電力を
消費するという問題点があった。In this conventional power supply method for the line interface, power is supplied to the level converter even when the line in question is not in communication or is unused, that is, not connected to the DCE. Therefore, there is a problem that power is wasted.
【０００４】本発明の目的は、回線対応部がむだな電力
を消費しないようにすることにある。An object of the present invention is to prevent the line interface from consuming unnecessary power.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、論理部と、送信信号レベル変換部及び受
信信号レベル変換部を有するレベル変換部と、ＤＣＥと
から成る回線対応部において、非通信中又は未使用時に
送信信号レベル変換部及び受信信号レベル変換部に給電
を行わないようにするリレー制御部を、レベル変換部に
設けたものである。In order to achieve the above-mentioned object, the present invention provides a line interface section comprising a logic section, a level conversion section having a transmission signal level conversion section and a reception signal level conversion section, and a DCE. In the above, the level conversion unit is provided with a relay control unit that does not supply power to the transmission signal level conversion unit and the reception signal level conversion unit during non-communication or when not in use.
【０００６】[0006]
【実施例】以下、本発明について、図面を参照して説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.
【０００７】図１は本発明の一実施例のブロック図であ
る。図１において、回線対応部は、送受信処理を行う論
理部６とレベル変換部７より成る。レベル変換部７は、
送信信号レベル変換部１と受信信号レベル変換部２を有
し、それぞれは、リレー接点２６を介して、給電路８よ
り電源の供給を受けている。更に、レベル変換部７はリ
レー制御部２０を有している。リレー制御部２０は、リ
レー接点２６を介さず、給電路２７より電源の供給を受
けている。リレー制御部２０は、ＤＣＥ５のキャリア検
出信号２８を受信し、それがオンなら論理値「１」を、
また、オフなら論理値「０」を出力するキャリア検出信
号受信部２２と、論理部６より図示されない経路で設定
されるフリップフロップ２１とキャリア検出信号受信部
２２と、フリップフロップ２１の出力を入力し、論理和
をとってリレードライバ２４へ出力する理論和素子２５
と、リレードライバ２４によって駆動されるリレー２３
によって構成される。FIG. 1 is a block diagram of an embodiment of the present invention. In FIG. 1, the line interface unit includes a logic unit 6 that performs transmission / reception processing and a level conversion unit 7. The level conversion unit 7
It has a transmission signal level conversion unit 1 and a reception signal level conversion unit 2, each of which is supplied with power from a power feeding path 8 via a relay contact 26. Further, the level conversion unit 7 has a relay control unit 20. The relay control unit 20 is supplied with power from the power feeding path 27 without passing through the relay contact 26. The relay control unit 20 receives the carrier detection signal 28 of the DCE 5, and if it is ON, the logical value "1",
Further, when it is off, the carrier detection signal receiving unit 22 that outputs a logical value “0”, the flip-flop 21 and the carrier detection signal receiving unit 22 that are set by the logic unit 6 through a path not shown, and the output of the flip-flop 21 are input. Then, the logical sum element 25 which takes the logical sum and outputs it to the relay driver 24
And the relay 23 driven by the relay driver 24
Composed by.
【０００８】次に、動作について説明する。Next, the operation will be described.
【０００９】非通話中又は未使用時。非通話中又は未使
用時には、ＤＣＥ５からのキャリア検出信号２８はオフ
となっている。したがって、キャリア検出信号受信部２
２は論理値「０」を出力し、その出力は、論理和素子２
５を介して、リレードライバ２４へ入力される。リレー
ドライバ２４は論理値「０」を受信し、リレー２３を駆
動しない。したがって、リレー説点２６は開状態であ
り、送信信号レベル変換部１と受信信号レベル変換部２
は給電されない。During non-call or when not in use. The carrier detection signal 28 from the DCE 5 is off during non-call or when not in use. Therefore, the carrier detection signal receiving unit 2
2 outputs a logical value "0", and its output is the logical sum element 2
The signal is input to the relay driver 24 via 5. The relay driver 24 receives the logical value “0” and does not drive the relay 23. Therefore, the relay point 26 is in the open state, and the transmission signal level conversion unit 1 and the reception signal level conversion unit 2 are
Is not powered.
【００１０】受信動作。ＤＣＥ５は受信開始に先立って
キャリア検出信号２８をオンする。したがって、キャリ
ア検出信号受信部２２は論理値「１」を出力し、その出
力は、論理和素子２５を介して、リレードライバ２４へ
入力される。リレードライバ２４は論理値「１」を受信
し、リレー２３を駆動する。したがって、リレー接点２
６は閉状態となり、送信信号レベル変換部１と受信信号
レベル変換部２へ給電される。キャリア検出信号２８は
受信終了時にオフとなり、そのとき、リレー接点２６は
開状態となり、給電は停止される。Reception operation. The DCE 5 turns on the carrier detection signal 28 before starting reception. Therefore, the carrier detection signal receiving section 22 outputs a logical value “1”, and the output is input to the relay driver 24 via the logical sum element 25. The relay driver 24 receives the logical value “1” and drives the relay 23. Therefore, the relay contact 2
6 is closed, and power is supplied to the transmission signal level conversion unit 1 and the reception signal level conversion unit 2. The carrier detection signal 28 is turned off at the end of reception, at which time the relay contact 26 is opened and power supply is stopped.
【００１１】送信動作。論理部６は、送信開始に先立っ
て、フリップフロップ２１に論理値「１」を設定する。
フリップフロップ２１の論理値出力「１」は、論理和素
子２５を介して、リレードライバ２４へ入力される。こ
れにより、前記受信動作のときと同様に給電が行われ
る。論理部６は、送信終了後、フリップフロップ２１へ
論理値「０」を設定し、そのときリレー接点２６は開状
態となり、給電は停止される。Transmission operation. The logic unit 6 sets a logical value “1” in the flip-flop 21 before starting transmission.
The logical value output “1” of the flip-flop 21 is input to the relay driver 24 via the logical sum element 25. As a result, power is supplied in the same manner as in the reception operation. After the transmission is completed, the logic unit 6 sets the logical value “0” to the flip-flop 21, at which time the relay contact 26 is opened and the power supply is stopped.
【００１２】[0012]
【発明の効果】以上説明したように、本発明は、パケッ
ト交換機の回線対応部のレベル変換部において、レベル
変換部への給電を、リレー接点を介して給電し、ＤＣＥ
から受信するキャリア検出信号のオンとオフに応じて、
前記リレーの接点を開閉することにより、非通信中又は
未使用時は、レベル変換部への給電を行わないようにし
たので、むだに電力を消費しないという効果が得られ
る。As described above, according to the present invention, in the level conversion unit of the line corresponding unit of the packet switch, the power is supplied to the level conversion unit via the relay contact, and the DCE
Depending on the on and off of the carrier detect signal received from
By opening and closing the contacts of the relay, power is not supplied to the level conversion unit during non-communication or when not in use, so that it is possible to obtain an effect of not consuming power unnecessarily.
【図１】本発明の一実施例のブロック図である。FIG. 1 is a block diagram of an embodiment of the present invention.
【図２】従来のパケット交換機の回線対応部を示す図で
ある。FIG. 2 is a diagram showing a line interface of a conventional packet switch.
１ 送信信号レベル変換部 ２ 受信信号レベル変換部 ３ 送信信号 ４ 受信信号 ５ ＤＣＥ ６ 論理部 ７ レベル変換部 ８，２７ 給電路 ９ 送信信号（ＴＴＬレベル） １０ 受信信号（ＴＴＬレベル） ２０ リレー制御部 ２１ フリップフロップ ２２ キャリア検出信号受信部 ２３ リレー ２４ リレードライバ ２５ 論理和素子 ２６ リレー接点 ２８ キャリア検出信号 1 transmission signal level conversion unit 2 reception signal level conversion unit 3 transmission signal 4 reception signal 5 DCE 6 logic unit 7 level conversion unit 8, 27 power feeding path 9 transmission signal (TTL level) 10 reception signal (TTL level) 20 relay control unit 21 Flip-Flop 22 Carrier Detection Signal Receiving Section 23 Relay 24 Relay Driver 25 OR Element 26 Relay Contact 28 Carrier Detection Signal
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｈ０４Ｑ 3/42 １０４ 9076−5Ｋ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location // H04Q 3/42 104 9076-5K
Claims (1)
信号レベル変換部を有するレベル変換部と、ＤＣＥとか
ら成る回線対応部において、非通信中又は未使用時に送
信信号レベル変換部及び受信信号レベル変換部に給電を
行わないようにするリレー制御部を、レベル変換部に設
けたことを特徴とする回線対応部への給電方式。1. A transmission line level conversion unit and a reception unit during non-communication or when not in use in a line interface unit including a logic unit, a level conversion unit having a transmission signal level conversion unit and a reception signal level conversion unit, and a DCE. A power supply system for a line interface, wherein a relay control unit for preventing power supply to the signal level conversion unit is provided in the level conversion unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4100970A JPH05300178A (en) | 1992-04-21 | 1992-04-21 | Power feeding system for line corresponding part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4100970A JPH05300178A (en) | 1992-04-21 | 1992-04-21 | Power feeding system for line corresponding part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05300178A true JPH05300178A (en) | 1993-11-12 |
Family
ID=14288212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4100970A Pending JPH05300178A (en) | 1992-04-21 | 1992-04-21 | Power feeding system for line corresponding part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05300178A (en) |
-
1992
- 1992-04-21 JP JP4100970A patent/JPH05300178A/en active Pending
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