JPS5586256A - Switchboard test equipment - Google Patents

Switchboard test equipment

Info

Publication number
JPS5586256A
JPS5586256A JP15854078A JP15854078A JPS5586256A JP S5586256 A JPS5586256 A JP S5586256A JP 15854078 A JP15854078 A JP 15854078A JP 15854078 A JP15854078 A JP 15854078A JP S5586256 A JPS5586256 A JP S5586256A
Authority
JP
Japan
Prior art keywords
switchboard
load
circuits
dial
circuit
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
Application number
JP15854078A
Other languages
Japanese (ja)
Other versions
JPS5922428B2 (en
Inventor
Yusuke Yamamoto
Kenichi Ishii
Junichi Nihei
Masao Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone Corp
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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP15854078A priority Critical patent/JPS5922428B2/en
Publication of JPS5586256A publication Critical patent/JPS5586256A/en
Publication of JPS5922428B2 publication Critical patent/JPS5922428B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To test a load upon a switchboard efficiently by placing the switchboard in a high-load state by expanding load contents that a tester operates to several artificial terminal circuits. CONSTITUTION:While several couples of connection terminals 12 are connected to the subscriber's line of a switchboard to be tested, selection switch 4 is adequately turned ON as many times as occasion demands so as to set the number of circuits. In this state, turning hook switch 2 ON operates relays 30 in a series circuit, where switches 4 are previously turned ON, one after another at intervals of time set by delay circuit 5. Further, contact 31 of relay 30 in operation is made, and consequently closed circuits with terminal 12 are formed one after another to send calling signals to the switchboard. Next, rotary dial switch 1 is operated to dial an adequate telephone number, sending dial pulses to the switchboard with the time delay of circuit 5. Consequently,the load test of the switchboard can be carried out with high efficiency.
JP15854078A 1978-12-25 1978-12-25 Exchange test equipment Expired JPS5922428B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15854078A JPS5922428B2 (en) 1978-12-25 1978-12-25 Exchange test equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15854078A JPS5922428B2 (en) 1978-12-25 1978-12-25 Exchange test equipment

Publications (2)

Publication Number Publication Date
JPS5586256A true JPS5586256A (en) 1980-06-28
JPS5922428B2 JPS5922428B2 (en) 1984-05-26

Family

ID=15673935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15854078A Expired JPS5922428B2 (en) 1978-12-25 1978-12-25 Exchange test equipment

Country Status (1)

Country Link
JP (1) JPS5922428B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2560295B2 (en) * 1986-10-24 1996-12-04 株式会社ニコン Camera with built-in flash

Also Published As

Publication number Publication date
JPS5922428B2 (en) 1984-05-26

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