FR882918A - Systems for electrical signaling - Google Patents

Systems for electrical signaling

Info

Publication number
FR882918A
FR882918A FR882918DA FR882918A FR 882918 A FR882918 A FR 882918A FR 882918D A FR882918D A FR 882918DA FR 882918 A FR882918 A FR 882918A
Authority
FR
France
Prior art keywords
systems
electrical signaling
signaling
electrical
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR882918A publication Critical patent/FR882918A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B15/00—Supervisory desks or panels for centralised control or display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
FR882918D 1944-06-27 1942-06-05 Systems for electrical signaling Expired FR882918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1218544A GB600010A (en) 1944-06-27 1944-06-27 Improvements in or relating to electrical signalling system

Publications (1)

Publication Number Publication Date
FR882918A true FR882918A (en) 1943-06-18

Family

ID=9999890

Family Applications (1)

Application Number Title Priority Date Filing Date
FR882918D Expired FR882918A (en) 1944-06-27 1942-06-05 Systems for electrical signaling

Country Status (3)

Country Link
FR (1) FR882918A (en)
GB (1) GB600010A (en)
NL (1) NL55722C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490038A (en) * 1941-06-26 1949-12-06 Int Standard Electric Corp Electrical signaling system
US2598822A (en) * 1945-10-13 1952-06-03 Roelof M M Oberman Signaling system with private branch exchange subscriber

Also Published As

Publication number Publication date
GB600010A (en) 1948-03-30
NL55722C (en) 1943-12-15

Similar Documents

Publication Publication Date Title
FR852183A (en) Electrical signaling systems
FR881535A (en) Electrical signaling systems
FR881538A (en) Electrical signaling systems
FR948685A (en) Signaling system
FR937953A (en) Electrical signaling device
FR933091A (en) Improvements to electrical signaling systems
FR933246A (en) Improvements to electrical signaling systems
CH262919A (en) Electric signaling system.
FR882918A (en) Systems for electrical signaling
FR50345E (en) Electrical signaling systems
FR920660A (en) Sealing for electrical conductor
FR939087A (en) Electrical communications systems
FR54607E (en) Electrical signaling systems
FR932231A (en) Improvements to electrical signaling systems
FR930522A (en) Improvements to electrical signaling systems
FR933088A (en) Improvements relating to electrical signaling systems
FR930978A (en) Remote electrical signaling systems
FR902782A (en) Electrical signaling systems
FR886959A (en) Contacts for electrical equipment
FR897775A (en) switching equipment for telecommunications systems
ES157837A1 (en) ELECTRICAL SIGNALING SYSTEMS
FR885530A (en) Electrical signaling systems
FR882439A (en) Electrical signaling systems
FR883649A (en) Electrical signaling systems
FR930977A (en) Improvements to remote electrical signaling systems