JPS5978752U - group monitoring device - Google Patents
group monitoring deviceInfo
- Publication number
- JPS5978752U JPS5978752U JP1982175302U JP17530282U JPS5978752U JP S5978752 U JPS5978752 U JP S5978752U JP 1982175302 U JP1982175302 U JP 1982175302U JP 17530282 U JP17530282 U JP 17530282U JP S5978752 U JPS5978752 U JP S5978752U
- Authority
- JP
- Japan
- Prior art keywords
- pilot signal
- monitoring device
- level
- group monitoring
- monitoring
- 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
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Monitoring And Testing Of Transmission In General (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図、第２図は本考案の実施例を示すブロック図、外
観図である。
１・・・切替器、２・・・８４．０８ＫＨ２帯域ｐ波器
、３・・・１０４．０８ＫＨｚ帯域ｐ波器、４・・・減
衰器、５・・・増幅器、６・・・可変減衰器、７・・・
整流回路、８・・・直流メーター、９・・・警報回路、
１０・・・警報回路停止スイッチ、１１・・・ｌｄＢお
よびｌ ＱｄＢ単位減衰ダイヤル、１２・・・入力端子
、１３・・・ＨＩＧＨおよびＬＯＷ測定切替スイッチ、
１４・・・切替器、１５・・・警報部。FIGS. 1 and 2 are a block diagram and an external view showing an embodiment of the present invention. 1...Switcher, 2...84.08KH2 band p-wave device, 3...104.08KHz band p-wave device, 4...attenuator, 5...amplifier, 6...variable attenuation Vessel, 7...
Rectifier circuit, 8... DC meter, 9... Alarm circuit,
10... Alarm circuit stop switch, 11... ldB and l QdB unit attenuation dial, 12... Input terminal, 13... HIGH and LOW measurement changeover switch,
14...Switching device, 15...Alarm unit.
Claims (1)
イＯ”／ ）信号を通過させる切替可能なｐ波器と、パ
イロット信号の増幅器と、メーターの振れを調整する可
変減衰器と、パイロット信号を直流に変換する整流回路
と、パイロット信号の直流レベルを監視する警報回路と
、パイロット信号のレベルを目視する直流メータとを備
え、卓上型にしたことを特徴とする群監視装置。A switchable p-wave generator that passes 84.08KH2 and 104.08KHz (7) high O”/) signals, a pilot signal amplifier, a variable attenuator that adjusts the meter deflection, and converts the pilot signal to DC. A group monitoring device characterized in that it is of a tabletop type and includes a rectifying circuit for monitoring the DC level of a pilot signal, an alarm circuit for monitoring the DC level of a pilot signal, and a DC meter for visually checking the level of the pilot signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982175302U JPS5978752U (en) | 1982-11-19 | 1982-11-19 | group monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982175302U JPS5978752U (en) | 1982-11-19 | 1982-11-19 | group monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5978752U true JPS5978752U (en) | 1984-05-28 |
Family
ID=30381422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982175302U Pending JPS5978752U (en) | 1982-11-19 | 1982-11-19 | group monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61216554A (en) * | 1985-02-14 | 1986-09-26 | Fujitsu Ltd | Receiving level displaying system of modem |
-
1982
- 1982-11-19 JP JP1982175302U patent/JPS5978752U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61216554A (en) * | 1985-02-14 | 1986-09-26 | Fujitsu Ltd | Receiving level displaying system of modem |
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