FR2116891A5 - INTERFACE CIRCUIT FOR TELEPHONE SYSTEMS - Google Patents

INTERFACE CIRCUIT FOR TELEPHONE SYSTEMS

Info

Publication number
FR2116891A5
FR2116891A5 FR7044602A FR7044602A FR2116891A5 FR 2116891 A5 FR2116891 A5 FR 2116891A5 FR 7044602 A FR7044602 A FR 7044602A FR 7044602 A FR7044602 A FR 7044602A FR 2116891 A5 FR2116891 A5 FR 2116891A5
Authority
FR
France
Prior art keywords
interface circuit
telephone systems
telephone
systems
interface
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
Application number
FR7044602A
Other languages
French (fr)
Inventor
Mauger Jean-Paul
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.)
Societe des Telephones Ericsson SA
Original Assignee
Societe des Telephones Ericsson SA
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 Societe des Telephones Ericsson SA filed Critical Societe des Telephones Ericsson SA
Priority to FR7044602A priority Critical patent/FR2116891A5/en
Application granted granted Critical
Publication of FR2116891A5 publication Critical patent/FR2116891A5/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR7044602A 1970-12-10 1970-12-10 INTERFACE CIRCUIT FOR TELEPHONE SYSTEMS Expired FR2116891A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7044602A FR2116891A5 (en) 1970-12-10 1970-12-10 INTERFACE CIRCUIT FOR TELEPHONE SYSTEMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7044602A FR2116891A5 (en) 1970-12-10 1970-12-10 INTERFACE CIRCUIT FOR TELEPHONE SYSTEMS

Publications (1)

Publication Number Publication Date
FR2116891A5 true FR2116891A5 (en) 1972-07-21

Family

ID=9065584

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7044602A Expired FR2116891A5 (en) 1970-12-10 1970-12-10 INTERFACE CIRCUIT FOR TELEPHONE SYSTEMS

Country Status (1)

Country Link
FR (1) FR2116891A5 (en)

Similar Documents

Publication Publication Date Title
BE757455A (en) ANTI-RIGGING SYSTEM FOR
BE754235A (en) SUPERVISION CIRCUIT FOR TELEPHONE LINES
BE759380A (en) TELEPHONE CALL SIMULATOR
SE383951B (en) CONNECTION DEVICE FOR TIME-DIVIDED TELEPHONE SYSTEMS
FR1506115A (en) Device for switching electrical installations
IT943310B (en) SIGNALING COMPLEX FOR KEYPAD M TELEPHONE SYSTEMS
FR2340652A1 (en) LINE CIRCUIT FOR TELEPHONE SYSTEMS
BE770275A (en) ARRANGEMENT FOR VENTILATION SYSTEMS
BG24684A3 (en) Distributing device for electrical installations particularly for telephone exchanges
CA932487A (en) Polarity responsive circuit for telephone systems
BE772047A (en) ECHO DIGITAL SUPPRESSION CIRCUIT
IT950709B (en) LINE CIRCUIT FOR TELEPHONE INSTALLATIONS
AT336693B (en) TELEPHONE SWITCHING SYSTEM
AT333354B (en) PICTURE TELEPHONE SYSTEM
CH479925A (en) Telephone alarm system
BE791256A (en) SWITCH ESPECIALLY FOR TELECOMMUNICATIONS INSTALLATIONS
BE764312A (en) MOUNTING FOR ENCODING DEVICES
FR2116891A5 (en) INTERFACE CIRCUIT FOR TELEPHONE SYSTEMS
FR1441611A (en) Busy verification circuit for private automatic switchboard
BE774803A (en) DEVICE FOR THE ELECTRICAL CONNECTION OF CABLES
BE770465A (en) ECONOMIC CONSTRUCTION DISTRIBUTOR FOR TELEPHONE EQUIPMENT
BE792156A (en) AUXILIARY CONTACTS DELAY DEVICE
BE800647A (en) GASKETS FOR TELEPHONE CABLES
FR1494859A (en) Cable clamp for extraction systems
BR7206513D0 (en) CONNECTION DEVICE FOR TELE-COMMUNICATIONS INSTALLATIONS ESPECIALLY FOR TELEPHONE DISTRIBUTION SYSTEMS

Legal Events

Date Code Title Description
ST Notification of lapse