JPS5978752U - group monitoring device - Google Patents

group monitoring device

Info

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
Application number
JP1982175302U
Other languages
Japanese (ja)
Inventor
鍛治　宏司
Original Assignee
日本電気株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP1982175302U priority Critical patent/JPS5978752U/en
Publication of JPS5978752U publication Critical patent/JPS5978752U/en
Pending legal-status Critical Current

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

【図面の簡単な説明】[Brief explanation of drawings]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] ８４．０８ＫＨ２および１０４．０８ＫＨｚ　（７）ハ
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.
JP1982175302U 1982-11-19 1982-11-19 group monitoring device Pending JPS5978752U (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61216554A (en) * 1985-02-14 1986-09-26 Fujitsu Ltd Receiving level displaying system of modem

Cited By (1)

* Cited by examiner, † Cited by third party
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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