JPS55138990A - Selective signal receiving common control system - Google Patents

Selective signal receiving common control system

Info

Publication number
JPS55138990A
JPS55138990A JP4773379A JP4773379A JPS55138990A JP S55138990 A JPS55138990 A JP S55138990A JP 4773379 A JP4773379 A JP 4773379A JP 4773379 A JP4773379 A JP 4773379A JP S55138990 A JPS55138990 A JP S55138990A
Authority
JP
Japan
Prior art keywords
signal
dial pulse
multifrequency
circuit
trunk
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.)
Pending
Application number
JP4773379A
Other languages
Japanese (ja)
Inventor
Shingo Wada
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4773379A priority Critical patent/JPS55138990A/en
Publication of JPS55138990A publication Critical patent/JPS55138990A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)

Abstract

PURPOSE:To make it possible to read a selective signal by the same control in either case of a multifrequency signal or a dial pulse, by converting the dial pulse counting circuit and its output in the same way as the output part of the multifrequency receiver, in the multifrequency signal receiving trunk. CONSTITUTION:A dial pulse from a transmitting station is received by a current supply loop supervisory circuit 10 in the receiving trunk 6, and it is transmitted to the counting conversion circuit 13 through a network 4 from the dial pulse repeating circuit 11, and also the dial pulse receiving circuit 12 in the selective signal receiving trunk 7. Subsequently, when multifrequency signal has been received, the incoming signal is received by a multifrequency receiver 8 in the receiving trunk 7 through the trunk 6, and is transmitted to the output circuit 9. Thus, a selective signal can be read by the same control in either case of a multifrequency signal or a dial pulse, when it is watched from CPU3.
JP4773379A 1979-04-18 1979-04-18 Selective signal receiving common control system Pending JPS55138990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4773379A JPS55138990A (en) 1979-04-18 1979-04-18 Selective signal receiving common control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4773379A JPS55138990A (en) 1979-04-18 1979-04-18 Selective signal receiving common control system

Publications (1)

Publication Number Publication Date
JPS55138990A true JPS55138990A (en) 1980-10-30

Family

ID=12783532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4773379A Pending JPS55138990A (en) 1979-04-18 1979-04-18 Selective signal receiving common control system

Country Status (1)

Country Link
JP (1) JPS55138990A (en)

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