JPS57152761A - Control circuit for service loop of public telephone - Google Patents

Control circuit for service loop of public telephone

Info

Publication number
JPS57152761A
JPS57152761A JP3909581A JP3909581A JPS57152761A JP S57152761 A JPS57152761 A JP S57152761A JP 3909581 A JP3909581 A JP 3909581A JP 3909581 A JP3909581 A JP 3909581A JP S57152761 A JPS57152761 A JP S57152761A
Authority
JP
Japan
Prior art keywords
voltage
relay
service
capacitor
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
JP3909581A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0221188B2 (enrdf_load_stackoverflow
Inventor
Toshiyuki Kudo
Shigeyasu Tanaka
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.)
Anritsu Corp
Original Assignee
Anritsu 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 Anritsu Corp filed Critical Anritsu Corp
Priority to JP3909581A priority Critical patent/JPS57152761A/ja
Publication of JPS57152761A publication Critical patent/JPS57152761A/ja
Publication of JPH0221188B2 publication Critical patent/JPH0221188B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Prepayment Telephone Systems (AREA)
JP3909581A 1981-03-18 1981-03-18 Control circuit for service loop of public telephone Granted JPS57152761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3909581A JPS57152761A (en) 1981-03-18 1981-03-18 Control circuit for service loop of public telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3909581A JPS57152761A (en) 1981-03-18 1981-03-18 Control circuit for service loop of public telephone

Publications (2)

Publication Number Publication Date
JPS57152761A true JPS57152761A (en) 1982-09-21
JPH0221188B2 JPH0221188B2 (enrdf_load_stackoverflow) 1990-05-14

Family

ID=12543515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3909581A Granted JPS57152761A (en) 1981-03-18 1981-03-18 Control circuit for service loop of public telephone

Country Status (1)

Country Link
JP (1) JPS57152761A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0221188B2 (enrdf_load_stackoverflow) 1990-05-14

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