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JPS5468104A - Trunk control system - Google Patents

Trunk control system

Info

Publication number
JPS5468104A
JPS5468104A JP13467277A JP13467277A JPS5468104A JP S5468104 A JPS5468104 A JP S5468104A JP 13467277 A JP13467277 A JP 13467277A JP 13467277 A JP13467277 A JP 13467277A JP S5468104 A JPS5468104 A JP S5468104A
Authority
JP
Japan
Prior art keywords
pattern
cpu
rom
controlled
trunk 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
JP13467277A
Other languages
Japanese (ja)
Other versions
JPS6033035B2 (en
Inventor
Toshihiko Umeda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13467277A priority Critical patent/JPS6033035B2/en
Publication of JPS5468104A publication Critical patent/JPS5468104A/en
Publication of JPS6033035B2 publication Critical patent/JPS6033035B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

PURPOSE:To perform the pattern relay control easily from the CPU with a simple constitution, by writing in the sequence operating and restoring the pattern relay in the ROM of trunk circuit and altering the pattern with the timing signal of CPU. CONSTITUTION:When the pattern relays S, P and Q are controlled in the trunk circuit TRK from CPU, ROM is written in for the sequence operating and restoring the relays S, P and Q. In addition, driving circuits D2, D3 and D4 controlled with th output of ROM are provided, allowing to alter the pattern with the timing signal from CPU. Thus, the pattern relay in the trunk circuit TRK can easily be controlled from CPU with a simple constitution.
JP13467277A 1977-11-11 1977-11-11 Trunk control method Expired JPS6033035B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13467277A JPS6033035B2 (en) 1977-11-11 1977-11-11 Trunk control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13467277A JPS6033035B2 (en) 1977-11-11 1977-11-11 Trunk control method

Publications (2)

Publication Number Publication Date
JPS5468104A true JPS5468104A (en) 1979-06-01
JPS6033035B2 JPS6033035B2 (en) 1985-07-31

Family

ID=15133859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13467277A Expired JPS6033035B2 (en) 1977-11-11 1977-11-11 Trunk control method

Country Status (1)

Country Link
JP (1) JPS6033035B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03105441U (en) * 1990-02-13 1991-10-31

Also Published As

Publication number Publication date
JPS6033035B2 (en) 1985-07-31

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