JPS5386504A - Dividing system for office b-board channel - Google Patents

Dividing system for office b-board channel

Info

Publication number
JPS5386504A
JPS5386504A JP168877A JP168877A JPS5386504A JP S5386504 A JPS5386504 A JP S5386504A JP 168877 A JP168877 A JP 168877A JP 168877 A JP168877 A JP 168877A JP S5386504 A JPS5386504 A JP S5386504A
Authority
JP
Japan
Prior art keywords
office
dividing system
board channel
channel
board
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
JP168877A
Other languages
Japanese (ja)
Inventor
Hideaki Yamanouchi
Tetsuo Sato
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 JP168877A priority Critical patent/JPS5386504A/en
Publication of JPS5386504A publication Critical patent/JPS5386504A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To enhance the economical property of the system through division of the channel, by providing the B-board link and its connection circuit.
JP168877A 1977-01-10 1977-01-10 Dividing system for office b-board channel Pending JPS5386504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP168877A JPS5386504A (en) 1977-01-10 1977-01-10 Dividing system for office b-board channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP168877A JPS5386504A (en) 1977-01-10 1977-01-10 Dividing system for office b-board channel

Publications (1)

Publication Number Publication Date
JPS5386504A true JPS5386504A (en) 1978-07-31

Family

ID=11508446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP168877A Pending JPS5386504A (en) 1977-01-10 1977-01-10 Dividing system for office b-board channel

Country Status (1)

Country Link
JP (1) JPS5386504A (en)

Similar Documents

Publication Publication Date Title
JPS5336116A (en) Loop transmission system
JPS547816A (en) Phase synchronous system
JPS5386504A (en) Dividing system for office b-board channel
JPS522106A (en) Loop around connection control system
JPS5428106A (en) Pre-emphasis system
JPS5267559A (en) Counter
JPS53116004A (en) Block system for unit circuit
JPS5390886A (en) Wiring structure
JPS53143118A (en) Caty system
JPS524724A (en) Synchronizing circuit
JPS53124008A (en) Call signal transmission system
JPS5398704A (en) Optical multiplex transmission system
JPS521388A (en) Preferential order control system
JPS53118902A (en) Selective inter-call unit
JPS53115107A (en) Re-alternative connection system
JPS523319A (en) Crosstalk reduction system
JPS5365609A (en) Time-division channel system
JPS5315542A (en) Enclosed switchboard wiht buffer chamber
JPS51140407A (en) Light communication monitoring system
JPS5378084A (en) Snow repulsion wire
JPS544008A (en) Communication path system of uni-direction
JPS5334408A (en) Monitor system for transmission line
JPS52140207A (en) Telephone service system
JPS5254311A (en) Receiver
JPS52114937A (en) Enclosed switchboard