JPS5787687A - Pb-dp signal converting system - Google Patents

Pb-dp signal converting system

Info

Publication number
JPS5787687A
JPS5787687A JP16381980A JP16381980A JPS5787687A JP S5787687 A JPS5787687 A JP S5787687A JP 16381980 A JP16381980 A JP 16381980A JP 16381980 A JP16381980 A JP 16381980A JP S5787687 A JPS5787687 A JP S5787687A
Authority
JP
Japan
Prior art keywords
signal
transmitted
circuit
converted
dial pulse
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
JP16381980A
Other languages
Japanese (ja)
Inventor
Hideo Takahashi
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 JP16381980A priority Critical patent/JPS5787687A/en
Publication of JPS5787687A publication Critical patent/JPS5787687A/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

Abstract

PURPOSE:To achieve efficient system, by connecting a PB-DP signal converting device consisting of a modulation/demodulation circuit, PB signal reception circuit and dial pulse transmission circuit for common use to each trunk through switches. CONSTITUTION:For example, number information from a PB telephone set is modulated into a digital signal at an A/D converting circuit COD and transmitted to a signal converting device PB/DP CONV via a time sharing switch SW, where analog signal is obtained at a demodulation circuit DEC and after amplification, the signal is transmitted to a PB signal reception circuit PBR and the received figure is converted into a binary code, then, the code is converted into a dial pulse with a dial pulse transmission circuit DPSD and transmitted and the PB signal is converted into DP signal. Further, this signal is transmitted to a signal transmission/reception device SSR and received at a device SSR and transmitted to an opposing station. Thus, through the connection to a trunk via the signal converter and a time sharing switch, efficient PB-DP signal conversion is made.
JP16381980A 1980-11-20 1980-11-20 Pb-dp signal converting system Pending JPS5787687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16381980A JPS5787687A (en) 1980-11-20 1980-11-20 Pb-dp signal converting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16381980A JPS5787687A (en) 1980-11-20 1980-11-20 Pb-dp signal converting system

Publications (1)

Publication Number Publication Date
JPS5787687A true JPS5787687A (en) 1982-06-01

Family

ID=15781323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16381980A Pending JPS5787687A (en) 1980-11-20 1980-11-20 Pb-dp signal converting system

Country Status (1)

Country Link
JP (1) JPS5787687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63316993A (en) * 1987-06-19 1988-12-26 Nec Corp Line switching equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63316993A (en) * 1987-06-19 1988-12-26 Nec Corp Line switching equipment

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