JPH07193530A - Transmission device - Google Patents
Transmission deviceInfo
- Publication number
- JPH07193530A JPH07193530A JP5330286A JP33028693A JPH07193530A JP H07193530 A JPH07193530 A JP H07193530A JP 5330286 A JP5330286 A JP 5330286A JP 33028693 A JP33028693 A JP 33028693A JP H07193530 A JPH07193530 A JP H07193530A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- transmission
- control signal
- reception
- transmission line
- 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.)
- Granted
Links
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、伝送装置に関し、特に
試験のための折返し機能を備える伝送装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission device, and more particularly to a transmission device having a folding function for testing.
【０００２】[0002]
【従来の技術】従来、この種の伝送装置は、伝送路と装
置内とを切分けて試験を行う時に折返し機能が設けられ
ている。この折返し機能は伝送路側を折返す時は、受信
伝送路からの受信信号を切換えて送信側伝送路に折返
し、また装置側を折返す時は、送信側伝送路への送信信
号を切換えて自局装置の受信側へ折返すようになってい
る。特に伝送路側を折返す時は対向局からのリモート制
御により実行され、対向局側から各種の切分け試験が行
なわれる。2. Description of the Related Art Conventionally, a transmission device of this type is provided with a loopback function when a test is performed by separating the transmission line from the inside of the device. This loopback function switches the reception signal from the reception transmission channel to loop back to the transmission channel when the transmission channel side is looped back, and switches the transmission signal to the transmission channel when switching the device side. It is designed to return to the receiving side of the station device. In particular, when the transmission path side is turned back, it is executed by remote control from the opposite station, and various separation tests are performed from the opposite station side.
【０００３】尚、この折返しを制御するなどの各種の制
御あるいは各種の監視を行う監視制御信号は、一般に多
重化伝送装置の場合、送信信号のフレーム中の所定タイ
ムスロットに挿入され主信号と共に伝送路へ送出され
る。Incidentally, in the case of a multiplexing transmission apparatus, a supervisory control signal for performing various controls such as controlling the loopback or various supervision is generally inserted in a predetermined time slot in a frame of a transmission signal and transmitted together with a main signal. Sent to the road.
【０００４】[0004]
【発明が解決しようとする課題】このように従来の伝送
装置は、伝送路側を折返す場合、受信信号を切換えて送
信側伝送路に折返しているので、装置の受信部はこの折
返しループの外になり、対向局からの受信信号は受けら
れないことになる。例えば、この折返しを制御する制御
信号などをこの受信信号に挿入して伝送しようとした場
合、折返し中はこの制御信号の受信ができないので制御
ができないという問題がある。As described above, in the conventional transmission apparatus, when the transmission path side is folded back, the reception signal is switched and returned to the transmission side transmission path. Therefore, the receiving section of the apparatus is out of this folding loop. Therefore, the reception signal from the opposite station cannot be received. For example, if a control signal or the like for controlling the loopback is inserted into the received signal for transmission, the control signal cannot be received during the loopback, which causes a problem that the control cannot be performed.
【０００５】また、装置側を折返す場合も、送信信号を
切換えて自装置の受信側に折返しているので、例えば送
信信号に区間監視を行う監視信号などを挿入した場合、
折返し時はこの監視信号は対向局に行かないので、対向
局で不用なアラームを発生してしまうという問題があ
る。Also, when the device side is turned back, the transmission signal is switched and turned back to the receiving side of the device itself. Therefore, for example, when a monitoring signal for section monitoring is inserted in the transmission signal,
Since this monitoring signal does not go to the opposite station at the time of returning, there is a problem that an unnecessary alarm is generated in the opposite station.
【０００６】尚、この監視制御信号の挿入あるいは抽出
回路を装置の送信部受信部より分離し、折返しループ中
に設けることにより上記の問題は解消するが、この場合
は装置と伝送路の完全な切分け試験が行えないという問
題がある。The above-mentioned problem can be solved by disposing the monitoring control signal inserting or extracting circuit from the transmitting section and the receiving section of the device and providing it in the loop loop. However, in this case, the device and the transmission line are completely removed. There is a problem that the separation test cannot be performed.
【０００７】[0007]
【課題を解決するための手段】本発明の伝送装置は、送
信装置部からの送信信号に監視制御信号を挿入する監視
制御信号挿入部と、前記監視制御信号挿入部からの送信
信号と受信側伝送路の受信信号とを入力し通常時および
装置側のループバック時は前記送信信号を選択し伝送路
側のループバック時は前記受信信号を選択して送信側伝
送路へ送出する送信側選択部と、前記受信信号と前記監
視制御信号挿入部からの送信信号とを入力し通常時およ
び前記伝送路側のループバック時は前記受信信号を選択
し前記装置側のループバック時は前記送信信号を選択す
る受信側選択部と、前記受信側選択部の出力信号を入力
し前記受信信号に挿入された監視制御信号を抽出し分岐
した後入力信号を受信装置部へ送出する監視制御信号分
岐部とを備えている。A transmission device of the present invention comprises a supervisory control signal inserting section for inserting a supervisory control signal into a transmission signal from a transmitting apparatus section, a transmission signal from the supervisory control signal inserting section and a receiving side. A transmission side selection unit that inputs a reception signal of a transmission line and selects the transmission signal during normal time and loopback on the device side, and selects the reception signal during loopback on the transmission side and sends out to the transmission side transmission line And the reception signal and the transmission signal from the monitor control signal insertion unit are input, and the reception signal is selected during normal operation and loopback on the transmission path side, and the transmission signal is selected during loopback on the device side. A receiving side selecting section, and a monitoring control signal branching section for inputting the output signal of the receiving side selecting section and extracting and branching the monitoring control signal inserted in the received signal and then sending the input signal to the receiving section. Equipped .
【０００８】[0008]
【実施例】次に本発明の一実施例を図面を参照して説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will now be described with reference to the drawings.
【０００９】図１は本実施例のブロック図である。FIG. 1 is a block diagram of this embodiment.
【００１０】図１において、本実施例は多重化伝送装置
の例で複数の信号１０１を時分割で多重化する多重部１
と、多重化信号に監視制御信号を挿入する監視制御信号
挿入部２と、監視制御信号挿入部２からの信号と受信イ
ンタフェース５からの信号の何れかを選択し、送信イン
タフェース４とに送出する送信側選択部３と、送信側選
択部３からの信号を伝送路１０に送信する送信インタフ
ェース４と、伝送路１１からの受信信号を受信する受信
インタフェース５と、受信インタフェース５からの信号
と監視制御信号挿入部２からの信号の何れかを選択し、
監視制御信号分岐部７に送る受信側選択部６と、受信側
選択部６からの信号から監視制御信号を分岐する監視制
御信号分岐部７と、多重化信号を複数の信号１０４に分
離する分離部８と、監視制御信号を送受信し各種の監視
制御を実行する監視制御部９とから構成される。In FIG. 1, the present embodiment is an example of a multiplexing transmission apparatus, and a multiplexing unit 1 for multiplexing a plurality of signals 101 by time division.
And a supervisory control signal inserting section 2 for inserting a supervisory control signal into the multiplexed signal, and a signal from the supervisory control signal inserting section 2 or a signal from the receiving interface 5 is selected and sent to the transmitting interface 4. Transmitting side selecting unit 3, transmitting interface 4 for transmitting the signal from transmitting side selecting unit 3 to transmission line 10, receiving interface 5 for receiving the received signal from transmission line 11, and signal from receiving interface 5 and monitoring Select one of the signals from the control signal insertion unit 2,
The receiving side selection unit 6 to be sent to the monitoring control signal branching unit 7, the monitoring control signal branching unit 7 that branches the monitoring control signal from the signal from the receiving side selection unit 6, and the separation that separates the multiplexed signal into a plurality of signals 104. It is composed of a unit 8 and a monitor control unit 9 which transmits and receives a monitor control signal and executes various monitor controls.
【００１１】通常時においては、送信側選択部３は監視
制御信号挿入部２からの信号を選択し、受信側選択部６
は受信インタフェース５からの信号を選択しているが、
伝送路側の信号を折り返す際には、送信側選択部３およ
び受信側選択部６は受信インタフェース５からの信号を
選択する。これにより折返しが行なわれるが、受信信号
は監視制御信号分岐部７にも入力されるので、監視制御
信号分岐部７では通常通り監視制御信号が抽出され分岐
される。In the normal state, the transmitting side selecting section 3 selects the signal from the supervisory control signal inserting section 2 and the receiving side selecting section 6
Selects the signal from the receiving interface 5,
When returning the signal on the transmission path side, the transmitting side selecting unit 3 and the receiving side selecting unit 6 select the signal from the receiving interface 5. This causes the received signal to be returned to the supervisory control signal branching unit 7, but the supervisory control signal branching unit 7 extracts and branches the supervisory control signal as usual.
【００１２】また、装置側の信号を折返す際には、送信
側選択部３および受信側選択部６はそれぞれ監視制御信
号挿入部２からの信号を選択するので、装置側の折返し
が行なわれ、同時に伝送路１０には通常通り送信信号が
送出され対向局への監視制御信号が停止されることはな
い。Further, when the signal on the device side is returned, the transmitting side selecting unit 3 and the receiving side selecting unit 6 respectively select the signal from the monitor control signal inserting unit 2, so that the device side is returned. At the same time, the transmission signal is sent to the transmission line 10 as usual and the supervisory control signal to the opposite station is not stopped.
【００１３】[0013]
【発明の効果】以上説明したように本発明の伝送装置
は、伝送路側の信号を折り返す際には受信信号は通常通
り監視制御信号分岐部にも入力され、また装置側の信号
を折返す際には送信信号は通常通り伝送路に送出される
ので、監視制御信号を送信信号に挿入し主信号と同一伝
送路で伝送しても、折返し時における監視制御の動作に
支障が発生しないという効果がある。As described above, in the transmission device of the present invention, when the signal on the transmission path side is returned, the received signal is also input to the supervisory control signal branching unit as usual, and when the signal on the device side is returned. Since the transmission signal is sent to the transmission line as usual, even if the monitoring control signal is inserted into the transmission signal and transmitted on the same transmission line as the main signal, there is no problem in the operation of the monitoring control at the time of turning back. There is.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of the present invention.
１ 多重部 ２ 監視制御信号 ３ 送信側選択部 ４ 送信インタフェース ５ 受信インタフェース ６ 受信側選択部 ７ 監視制御信号分岐部 ８ 分離部 ９ 監視制御部 DESCRIPTION OF SYMBOLS 1 Multiplexing section 2 Monitoring control signal 3 Transmission side selection section 4 Transmission interface 5 Reception interface 6 Reception side selection section 7 Monitoring control signal branch section 8 Separation section 9 Monitoring control section
Claims (1)
号を挿入する監視制御信号挿入部と、前記監視制御信号
挿入部からの送信信号と受信側伝送路の受信信号とを入
力し通常時および装置側のループバック時は前記送信信
号を選択し伝送路側のループバック時は前記受信信号を
選択して送信側伝送路へ送出する送信側選択部と、前記
受信信号と前記監視制御信号挿入部からの送信信号とを
入力し通常時および前記伝送路側のループバック時は前
記受信信号を選択し前記装置側のループバック時は前記
送信信号を選択する受信側選択部と、前記受信側選択部
の出力信号を入力し前記受信信号に挿入された監視制御
信号を抽出し分岐した後入力信号を受信装置部へ送出す
る監視制御信号分岐部とを備えることを特徴とする伝送
装置。1. A supervisory control signal inserting section for inserting a supervisory control signal into a transmit signal from a transmitter section, and a transmit signal from the supervisory control signal inserting section and a receive signal of a receiving side transmission line are inputted and in normal time And a transmission side selecting unit that selects the transmission signal during loopback on the device side and selects the reception signal during loopback on the transmission line side and sends the transmission signal to the transmission side transmission line, the reception signal and the supervisory control signal insertion And a reception side selection unit that selects the reception signal during normal operation and during loopback on the transmission path side, and selects the transmission signal during loopback on the device side. And a monitor control signal branching unit for outputting the input signal to the receiver unit after extracting and branching the monitor control signal inserted in the received signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5330286A JP2636155B2 (en) | 1993-12-27 | 1993-12-27 | Transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5330286A JP2636155B2 (en) | 1993-12-27 | 1993-12-27 | Transmission equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07193530A true JPH07193530A (en) | 1995-07-28 |
| JP2636155B2 JP2636155B2 (en) | 1997-07-30 |
Family
ID=18230956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5330286A Expired - Lifetime JP2636155B2 (en) | 1993-12-27 | 1993-12-27 | Transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2636155B2 (en) |
-
1993
- 1993-12-27 JP JP5330286A patent/JP2636155B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2636155B2 (en) | 1997-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970225 |