JPH0436621B2 - - Google Patents

Info

Publication number
JPH0436621B2
JPH0436621B2 JP23351084A JP23351084A JPH0436621B2 JP H0436621 B2 JPH0436621 B2 JP H0436621B2 JP 23351084 A JP23351084 A JP 23351084A JP 23351084 A JP23351084 A JP 23351084A JP H0436621 B2 JPH0436621 B2 JP H0436621B2
Authority
JP
Japan
Prior art keywords
current
subscriber
power supply
circuit
subscriber line
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.)
Expired - Lifetime
Application number
JP23351084A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61111054A (ja
Inventor
Hiroshi Shinkawa
Kazuhiko Hashimoto
Takeo Koinuma
Kazuo Hamasato
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.)
Fujitsu Ltd
NTT Inc
Original Assignee
Fujitsu 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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP59233510A priority Critical patent/JPS61111054A/ja
Publication of JPS61111054A publication Critical patent/JPS61111054A/ja
Publication of JPH0436621B2 publication Critical patent/JPH0436621B2/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
    • H04M19/001—Current supply source at the exchanger providing current to substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP59233510A 1984-11-06 1984-11-06 加入者線オフ電流適正回路 Granted JPS61111054A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59233510A JPS61111054A (ja) 1984-11-06 1984-11-06 加入者線オフ電流適正回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59233510A JPS61111054A (ja) 1984-11-06 1984-11-06 加入者線オフ電流適正回路

Publications (2)

Publication Number Publication Date
JPS61111054A JPS61111054A (ja) 1986-05-29
JPH0436621B2 true JPH0436621B2 (de) 1992-06-16

Family

ID=16956155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59233510A Granted JPS61111054A (ja) 1984-11-06 1984-11-06 加入者線オフ電流適正回路

Country Status (1)

Country Link
JP (1) JPS61111054A (de)

Also Published As

Publication number Publication date
JPS61111054A (ja) 1986-05-29

Similar Documents

Publication Publication Date Title
US5511118A (en) Method of providing d.c. feed to a telephone line
EP0455894A1 (de) Impedanz-Synthese durch vielfache Schleife, die filternde Mittel verwendet
EP0225069A2 (de) Energieversorgung für Telefone
US4354062A (en) Communication system signaling circuit
CA1160780A (en) Trunk interface circuit with current compensation
JPH0436621B2 (de)
GB2152331A (en) Pulse/direct current multiplexing circuit in key telephone system
US4588860A (en) Battery feed circuit for telephone subscriber line
US3908091A (en) Dial pulse correction circuit for telephone signaling system
USRE29078E (en) Key telephone system
GB1474769A (en) Telephone trunk supervisory circuits
US5191507A (en) Polarity inverting circuit
US4549290A (en) Voice/data digital, duplex link
US3875346A (en) Revertive pulsing
US4191859A (en) Loop, dial pulse and ring trip detection circuit with capacitive shunt network
US5289537A (en) On-hook transmission circuit in cable line
US4552994A (en) Apparatus for isolating the voice frequency path from the floating battery feed during signalling
JPS61111052A (ja) 課金パルス送出方式
JPH0320958B2 (de)
WO1994017619A1 (en) Method of providing d.c. feed to a telephone line
JPH01144847A (ja) 通信システムの端末装置
JPS6028364A (ja) 自動損失切替方式
JP2685765B2 (ja) ダイヤルパルス安定送出回路
JPS63269661A (ja) 給電回路
JPH09247298A (ja) 加入者回路の給電方式