JPS59110237A - Group pilot monitoring device - Google Patents
Group pilot monitoring deviceInfo
- Publication number
- JPS59110237A JPS59110237A JP22066982A JP22066982A JPS59110237A JP S59110237 A JPS59110237 A JP S59110237A JP 22066982 A JP22066982 A JP 22066982A JP 22066982 A JP22066982 A JP 22066982A JP S59110237 A JPS59110237 A JP S59110237A
- Authority
- JP
- Japan
- Prior art keywords
- group
- monitoring device
- level
- pilot
- conversion device
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Abstract
Description
【発明の詳細な説明】
（ａ）１発明の技術分野
本発明は群パイロットの監視に係り、特に周波数分割方
式の搬送端局装置に於いてＣＣＩＴＴの規定による群変
換装置のレベル監視の為の群パイロット監視方式に関す
るものである。Detailed Description of the Invention (a) 1 Technical Field of the Invention The present invention relates to the monitoring of group pilots, and in particular to the monitoring of the level of a group conversion device according to the CCITT regulations in a frequency division type carrier end station device. This relates to a group pilot monitoring system.
（ｂ）、従来技術と問題点
第１図は従来の群パイロットのレベル監視装置を示す図
で、図中１は群変換装置、１−１は第１群の群変換装置
、１−２は第２群の群変換装置、１−Ｎは第Ｎ群の群変
換装置で、２はレベル変動監視装置で、２−１は第１群
のレベル変動監視装置、２−２は第２群のレベル変動監
視装置、２−Ｎは第Ｎ群のレベル変動監視装置を表す。(b), Prior art and problems Figure 1 is a diagram showing a conventional group pilot level monitoring device, in which 1 is a group conversion device, 1-1 is a group conversion device for the first group, and 1-2 is a group conversion device. 2 is the group conversion device of the second group; 1-N is the group conversion device of the Nth group; 2 is the level fluctuation monitoring device; 2-1 is the level fluctuation monitoring device of the first group; 2-2 is the group conversion device of the second group; The level fluctuation monitoring device 2-N represents the level fluctuation monitoring device of the Nth group.
搬送端局装置に於いては、ＣＣＩＴＴにより群変換装置
のレベル監視を行う為、群パイロットを常時一定レベル
で送信側より挿入し、受信側では此の群パイロットを選
択受信して其のレベルを監視することを規定されている
。In the carrier terminal equipment, in order to monitor the level of the group conversion equipment by CCITT, a group pilot is always inserted at a constant level from the transmitting side, and on the receiving side, this group pilot is selectively received and its level is checked. specified to be monitored.
此の為に搬送端局装置の受信側に於いて、第１図に示す
様に従来は群変換装置と群パイロットのレベル監視装置
とが１：１に対応して設置され、各群変換装置毎に個々
に各群パイロットを信号電流より抽出し、此れを整流し
て得られる直流レベルを基準レベルと比較し、許容範囲
内にあれば合格とし、許容範囲外にあれば不合格とし警
報を出していた。尚此の許容範囲は基準レベルに対しＡ
ｄｂ以内としているのが普通である。For this reason, on the receiving side of the carrier terminal equipment, as shown in Fig. 1, conventionally a group conversion device and a group pilot level monitoring device are installed in a 1:1 correspondence, and each group conversion device Each group pilot is individually extracted from the signal current, and the DC level obtained by rectifying this is compared with the reference level. If it is within the allowable range, it is judged as a pass, and if it is outside the allowable range, it is judged as a fail and an alarm is issued. was issued. Furthermore, this tolerance range is A compared to the standard level.
It is normal to keep it within db.
此の様な従来の方法は群変換装置と同数の監視装置を必
要とするので不経済であると云う欠点を持っている。This conventional method has the disadvantage that it is uneconomical because it requires the same number of monitoring devices as group transformation devices.
（Ｃ）０発明の目的
本発明の目的は従来技術の有する上記の欠点を除去し、
経済的で且つ有効な搬送端局装置のにＮ方式の群パイロ
ット監視装置を櫂供することである。(C)0Object of the invention The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art,
It is an object of the present invention to provide an economical and effective carrier terminal station equipment with an N-type group pilot monitoring device.
（ｄ）０発明の構成
上記の目的は本発明によれば、複数個の群変換装置の各
群バイロフトを監視する群パイロット監視装置に於いて
、受信側の各群変換装置出力の前記群パイロットを切り
換えスイッチにより一個の群パイロット監視装置に順次
選択接続することにより前記搬送端局装置の群パイロッ
トを監視することを特徴とする群パイロット監視装置を
提供することにより達成される。(d) Structure of the Invention According to the present invention, in a group pilot monitoring device that monitors each group viroft of a plurality of group conversion devices, the group pilot of the output of each group conversion device on the receiving side This is achieved by providing a group pilot monitoring device characterized in that the group pilot of the carrier terminal device is monitored by sequentially selectively connecting the terminals to one group pilot monitoring device using a changeover switch.
（ｅ）０発明の実施例
第２図は本発明の一実施例を示す図で、図中１は群変換
装置、１−１は第１群の群変換装置、１−２は第２群の
群変換装置、１−Ｎは第Ｎ群の群変換装置、２は切り換
えスイッチ、３はレベル変動監視装置である。(e) 0 Embodiment of the invention FIG. 2 is a diagram showing an embodiment of the invention, in which 1 is a group conversion device, 1-1 is a first group conversion device, and 1-2 is a second group conversion device. 1-N is a group conversion device for the Nth group, 2 is a changeover switch, and 3 is a level fluctuation monitoring device.
以下第２図に従って本発明の詳細な説明する。The present invention will be described in detail below with reference to FIG.
１〜Ｎの各群変換装置は夫々の対応する送信側の各群変
換装置から送られて来る群パイロットを受信し、夫々の
出力に群パイロット信号が出ている。Each of the group conversion devices 1 to N receives a group pilot sent from the corresponding group conversion device on the transmitting side, and a group pilot signal is outputted from each output.
此のアナログ量である群パイロット信号を切り換えスイ
ッチ２により１．２．３・・・Ｎ、１．２の順序で逐次
各群変換装置の出力を選択切り換えてレベル変動監視装
Ｗ３に接続する。This group pilot signal, which is an analog quantity, is sequentially selected and switched between the outputs of each group conversion device in the order of 1, 2, 3, . . . , 1, 2, .
レベル変動監視装置３に於いては此の群パイロットを順
次受信し、整流して直流電流に変換して基準レベルと比
較し許容範囲内にあれば合格とし、許容範囲外にあれば
不合格とし警報を発する。The level fluctuation monitoring device 3 sequentially receives this group pilot, rectifies it, converts it to direct current, and compares it with the reference level.If it is within the allowable range, it is judged as a pass, and if it is outside the allowable range, it is judged as a fail. Issue an alarm.
以上に説明した様にすることにより、群パイロットを整
流して直流電流に変換して基準レベルと比較する回路を
多重化することにより、より経済的に群パイロットを監
視することが可能になる。By doing as described above, it becomes possible to monitor the group pilot more economically by multiplexing circuits that rectify the group pilot, convert it into direct current, and compare it with a reference level.
（ｆ）０発明の効果
以上詳細に説明した様に本発明によれば、従来方式の様
な群変換装置と同数の監視装置を必要とすることなく、
経済的で且つ有効な群パイロットのレベル監視装置を提
供することが出来ると云う大きい効果がある。(f) 0 Effects of the Invention As explained in detail above, according to the present invention, it is not necessary to have the same number of monitoring devices as group conversion devices as in the conventional method.
This has the great advantage of providing an economical and effective group pilot level monitoring system.
第１図は従来の群パイロットのレベル監視装置を示す図
で、図中１は群変換装置、■−１は第１群の群変換装置
、１−２は第２群の群変換装置、１−Ｎは第Ｎ群の群変
換装置で、２はレベル変動監視装置で、２−１は第１群
のレベル変動監視装置、２−２は第２群のレベル変動監
視装置、２−Ｎは第Ｎ群のレベル変動監視装置を表す。
第２図は本発明の一実施例を示す図で、図中１は群変換
装置、１−１は第１群の群変換装置、１−２は第２群の
群変換装置、１−Ｎは第Ｎ群の群変換装置、２は切り換
えスイッチ、３はレベル変動監視装置である。FIG. 1 is a diagram showing a conventional group pilot level monitoring device, in which 1 is a group conversion device, 1-1 is a group conversion device for the first group, 1-2 is a group conversion device for the second group, 1 -N is a group conversion device of the Nth group, 2 is a level fluctuation monitoring device, 2-1 is a level fluctuation monitoring device of the first group, 2-2 is a level fluctuation monitoring device of the second group, 2-N is a level fluctuation monitoring device of the second group; It represents the level fluctuation monitoring device of the Nth group. FIG. 2 is a diagram showing an embodiment of the present invention, in which 1 is a group transformation device, 1-1 is a first group transformation device, 1-2 is a second group transformation device, 1-N 2 is a group conversion device for the Nth group, 2 is a changeover switch, and 3 is a level fluctuation monitoring device.
Claims (1)
ロット監視装置に於いて、受信側の各群変換装置出力の
前記群パイロットを切り換えスイッチにより一個の継パ
イロット監視装置に順次選択接続することにより前記搬
送端局装置の群パイロットを監視することを特徴とする
群パイロ・ノド監視装置。In a group pilot monitoring device that monitors each group viroft of a plurality of group conversion devices, by sequentially selectively connecting the group pilot output from each group conversion device on the receiving side to one relay pilot monitoring device using a changeover switch. A group pyro/node monitoring device, characterized in that it monitors a group pilot of the carrier terminal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22066982A JPS59110237A (en) | 1982-12-16 | 1982-12-16 | Group pilot monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22066982A JPS59110237A (en) | 1982-12-16 | 1982-12-16 | Group pilot monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59110237A true JPS59110237A (en) | 1984-06-26 |
Family
ID=16754592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22066982A Pending JPS59110237A (en) | 1982-12-16 | 1982-12-16 | Group pilot monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59110237A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6471339A (en) * | 1987-09-11 | 1989-03-16 | Fujitsu Ltd | Selection monitor circuit for group monitor current |
-
1982
- 1982-12-16 JP JP22066982A patent/JPS59110237A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6471339A (en) * | 1987-09-11 | 1989-03-16 | Fujitsu Ltd | Selection monitor circuit for group monitor current |
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