GB646374A - Improvements in telecommunication systems with alternative routing facilities - Google Patents

Improvements in telecommunication systems with alternative routing facilities

Info

Publication number
GB646374A
GB646374A GB30535/46A GB3053546A GB646374A GB 646374 A GB646374 A GB 646374A GB 30535/46 A GB30535/46 A GB 30535/46A GB 3053546 A GB3053546 A GB 3053546A GB 646374 A GB646374 A GB 646374A
Authority
GB
United Kingdom
Prior art keywords
relay
traffic
exchange
over
sender
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
GB30535/46A
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite 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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of GB646374A publication Critical patent/GB646374A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Abstract

646,374. Automatic exchange systems. COMPAGNIE GENERALE D'ELECTRICITE. Oct. 14, 1946, No. 30535. Convention date, May 2. [Class 40 (iv)] In an alternative rout ing system, traffic relays 1, 2 and 3, Fig. 2, operate at an exchange A when the traffic intensity in the arm AB of a net. work (Fig. 1) reaches 80, 90 and 100 per cent respectively. Relays 4, 5, 6 corresponding to arm AC, and the traffic is directed over the route carrying the least traffic. Marking wires B<SP>1</SP>, D<SP>1</SP> correspond to stations B, D and marking wires A<SP>1</SP>B<SP>1</SP>, A<SP>1</SP>C<SP>1</SP> correspond to junctions AB, AC. Relay 7 is controlled by the traffic relays 1 to 6 to direct calls for exchange D over junction AB or AC in accordance with the relative intensity of traffic on the two junctions. Relay 8 diverts calls for exchange B over junction AC when the traffic intensity on AB reaches 100 per cent and relay 3 operates. If the traffic on junction CD is heavy, a traffic regulating device at exchange C signals exchange A over conductor T to operate relays 9, 10. Relay 9 falls back at the end of the signal but 10 is held and relay 7 is disabled so that no further calls can be directed over junction AC. Relay 10 is released to free relay 7 when a further signal is sent by exchange C over T2 when the traffic on CD diminishes. Relay 14 operates to release 10 and the sender at C is released by a battery signal applied to conductor A. Exchange C. Similar traffic regulating equipment is installed at C. Heavy traffic on CD operates relay 6, relay 12 follows and a sender S is seized by ground on wire M. The sender S signals exchange A to operate relay 9 at A over conductor T. The sender also operates relay 13 and releases itself, but is seized again if the traffic falls and releases 6, 12. When the sender is seized a second time with 13 already operated, it signals exchange over conductor T2, operates relay 14 and is released by an acknowledgement signal from exchange A. Specification 23305/46, (as open to inspection under Sect. 91), is referred to.
GB30535/46A 1946-05-02 1946-10-14 Improvements in telecommunication systems with alternative routing facilities Expired GB646374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR267821X 1946-05-02

Publications (1)

Publication Number Publication Date
GB646374A true GB646374A (en) 1950-11-22

Family

ID=8885668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30535/46A Expired GB646374A (en) 1946-05-02 1946-10-14 Improvements in telecommunication systems with alternative routing facilities

Country Status (4)

Country Link
BE (1) BE467410A (en)
CH (1) CH267821A (en)
GB (1) GB646374A (en)
NL (1) NL62685C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394231A (en) * 1964-11-18 1968-07-23 Bell Telephone Labor Inc Communications network control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394231A (en) * 1964-11-18 1968-07-23 Bell Telephone Labor Inc Communications network control system

Also Published As

Publication number Publication date
CH267821A (en) 1950-04-15
BE467410A (en)
NL62685C (en)

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