JPS5784698A - Subscriber circuit - Google Patents

Subscriber circuit

Info

Publication number
JPS5784698A
JPS5784698A JP16051880A JP16051880A JPS5784698A JP S5784698 A JPS5784698 A JP S5784698A JP 16051880 A JP16051880 A JP 16051880A JP 16051880 A JP16051880 A JP 16051880A JP S5784698 A JPS5784698 A JP S5784698A
Authority
JP
Japan
Prior art keywords
circuit
subscriber
terminals
conversion
subscriber 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
JP16051880A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0470831B2 (enrdf_load_html_response
Inventor
Kunio Nagashima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16051880A priority Critical patent/JPS5784698A/ja
Publication of JPS5784698A publication Critical patent/JPS5784698A/ja
Publication of JPH0470831B2 publication Critical patent/JPH0470831B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/001Current supply source at the exchanger providing current to substations
    • H04M19/008Using DC/DC converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
JP16051880A 1980-11-14 1980-11-14 Subscriber circuit Granted JPS5784698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16051880A JPS5784698A (en) 1980-11-14 1980-11-14 Subscriber circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16051880A JPS5784698A (en) 1980-11-14 1980-11-14 Subscriber circuit

Publications (2)

Publication Number Publication Date
JPS5784698A true JPS5784698A (en) 1982-05-27
JPH0470831B2 JPH0470831B2 (enrdf_load_html_response) 1992-11-12

Family

ID=15716684

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16051880A Granted JPS5784698A (en) 1980-11-14 1980-11-14 Subscriber circuit

Country Status (1)

Country Link
JP (1) JPS5784698A (enrdf_load_html_response)

Also Published As

Publication number Publication date
JPH0470831B2 (enrdf_load_html_response) 1992-11-12

Similar Documents

Publication Publication Date Title
JPS56158592A (en) Telephone set circuit netword
JPS56136072A (en) Telephone set service network
JPS5784698A (en) Subscriber circuit
JPS56158557A (en) Digital communication system
JPS5484425A (en) Switching regulator
JPS5553988A (en) Channel switch circuit
JPS5287304A (en) Extension line calling circuit in push-phone
GR65622B (en) Wiring arrangement for the connection of characteristics of continuous current with little power of loss in installations of telecommunication
JPS5439510A (en) Detection circuit for outgoing call
JPS5730430A (en) Submarine relay device
ES8203183A1 (es) Perfeccionamientos en una instalacion de intercomunicacion electronica
JPS556928A (en) Extension answer connecting system for key telephone system
JPS5283009A (en) Connecting system for incoming during communication
SU1051509A1 (ru) Устройство дл регулировани переменного тока
JPS56156063A (en) Transmitting circuit of coin voltage
JPS55156401A (en) Hybrid
JPS532011A (en) Calling signal and calling tone transmitting at telephone exchange
PL109522B2 (en) Central battery telephone set with spark-safe call circuit
JPS52102608A (en) Direct current supllier circuit
JPS5577110A (en) Device for superconductive coil
JPS5287303A (en) Office line control circuit in push-phone
JPS568981A (en) Selection system for balancing connected network
JPS5392610A (en) Attachment connection circuit
JPS5342606A (en) Telephone set
JPS54121014A (en) Wire repeating installation