JPS57210754A - Setting system for order line - Google Patents

Setting system for order line

Info

Publication number
JPS57210754A
JPS57210754A JP9623281A JP9623281A JPS57210754A JP S57210754 A JPS57210754 A JP S57210754A JP 9623281 A JP9623281 A JP 9623281A JP 9623281 A JP9623281 A JP 9623281A JP S57210754 A JPS57210754 A JP S57210754A
Authority
JP
Japan
Prior art keywords
line
spare
order line
digital
normal
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
JP9623281A
Other languages
Japanese (ja)
Inventor
Takuto Kojima
Yuji Shibata
Takao Makiyama
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9623281A priority Critical patent/JPS57210754A/en
Publication of JPS57210754A publication Critical patent/JPS57210754A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To eliminate the need for an order line, by using a spare line to establish the order line. CONSTITUTION:A master station CO and a remote line concentration station RLU of a digital exchanger are connected with normal use and spare lines L1 and L2, subscribers S1-Sn of the RLU are digitized with a line concentration network RNW and can communcate with a master station subscribers S0 via a normal/spare selector SELR, one of digital trunks DTR1 and DTR2, one of lines L1 and L2, one of digital trunks DTC1 and DTC2, a normal/spare selector SELC, a digital channel network NW and a subscriber circuit LC. A telephone set for order line, typewriters MC and MR and TYPR and TYPC can be connected via order line circuits SLGR and SLGC only when the line L1 is used for communication.
JP9623281A 1981-06-22 1981-06-22 Setting system for order line Pending JPS57210754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9623281A JPS57210754A (en) 1981-06-22 1981-06-22 Setting system for order line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9623281A JPS57210754A (en) 1981-06-22 1981-06-22 Setting system for order line

Publications (1)

Publication Number Publication Date
JPS57210754A true JPS57210754A (en) 1982-12-24

Family

ID=14159477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9623281A Pending JPS57210754A (en) 1981-06-22 1981-06-22 Setting system for order line

Country Status (1)

Country Link
JP (1) JPS57210754A (en)

Similar Documents

Publication Publication Date Title
MX9704002A (en) A radio telecommunication system.
JPS5639670A (en) Circuit switching unit
GB1046880A (en) Improvements in or relating to electric circuit arrangements for use in telecommunications systems
JPS57210754A (en) Setting system for order line
ES8401815A1 (en) Method and arrangement for signaling the transmission mode of a communication system.
GB1066589A (en) Telephone switching systems
JPS5591290A (en) Transmission system for remote line concentrator control information
GB990545A (en) Telephone concentrator systems
JPS5676657A (en) Signal transmission system
JPS55145455A (en) Backup system for center device
JPS5525249A (en) Special number exchange system
GB1212572A (en) Time-division multiplex telephone system
GB1077478A (en) Improvements in or relating to telecommunications systems subscriber's sets
JPS56132892A (en) Tandem connecting system of waiting time system
JPS5672562A (en) Communication equipment
Gresh et al. A unigauge design concept for telephone customer loop plant
JPS56119564A (en) Key telephone system
JPS54157005A (en) Distributed processing trunk system
JPS6442977A (en) Integrated mail equipment
ES362901A1 (en) Monocanal carrier system. (Machine-translation by Google Translate, not legally binding)
JPS5650660A (en) Incoming call centralized answer system
JPS54142918A (en) Interruption connection system
JPS6481490A (en) Subscriber line terminator
JPS57185762A (en) Facsimile transmission system
JPS6474891A (en) Telephone exchange