[go: up one dir, main page]

JPS56143033A - Input and output interface system - Google Patents

Input and output interface system

Info

Publication number
JPS56143033A
JPS56143033A JP4359080A JP4359080A JPS56143033A JP S56143033 A JPS56143033 A JP S56143033A JP 4359080 A JP4359080 A JP 4359080A JP 4359080 A JP4359080 A JP 4359080A JP S56143033 A JPS56143033 A JP S56143033A
Authority
JP
Japan
Prior art keywords
input
output
branching
devices
removal
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
JP4359080A
Other languages
Japanese (ja)
Inventor
Shigemi Mio
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 JP4359080A priority Critical patent/JPS56143033A/en
Publication of JPS56143033A publication Critical patent/JPS56143033A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • G06F13/4072—Drivers or receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To make extension and removal of the input/output device without stopping the system operation, by providing the branching device incorporating the interface transmission/reception circuit on the input/output interface line and connecting the input/output device to the branching device. CONSTITUTION:Logic sections 2, 3 of input/output devices 9, 10 and logic section 1 of channel 6 are connected to branching devices 12-14 with the branching interface line 15. Thus, when the removal and extension of the input and output devices 9, 10 are made by stopping the operation of the transmission/reception circuit of the branching devices 13, 14 in correspondence, the extension and removal of input/output device can be made with continuous system operation without disturbing the transfer information of the input/output interface lines 7, 8.
JP4359080A 1980-04-04 1980-04-04 Input and output interface system Pending JPS56143033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4359080A JPS56143033A (en) 1980-04-04 1980-04-04 Input and output interface system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4359080A JPS56143033A (en) 1980-04-04 1980-04-04 Input and output interface system

Publications (1)

Publication Number Publication Date
JPS56143033A true JPS56143033A (en) 1981-11-07

Family

ID=12667999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4359080A Pending JPS56143033A (en) 1980-04-04 1980-04-04 Input and output interface system

Country Status (1)

Country Link
JP (1) JPS56143033A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62164286A (en) * 1986-01-16 1987-07-20 Hitachi Ltd Plug-in structure of magnetic recording mechanism
EP0256698A2 (en) * 1986-08-06 1988-02-24 E.I. Du Pont De Nemours And Company Bus structure having constant electrical characteristics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62164286A (en) * 1986-01-16 1987-07-20 Hitachi Ltd Plug-in structure of magnetic recording mechanism
EP0256698A2 (en) * 1986-08-06 1988-02-24 E.I. Du Pont De Nemours And Company Bus structure having constant electrical characteristics

Similar Documents

Publication Publication Date Title
ES2015817A6 (en) Communication switching element.
IT8720518A0 (en) METHOD OF ATTENUATION OF THE ECHO SIGNAL IN CONVERSION CIRCUITS, SO-CALLED TELEPHONE FORKS, INTENDED FOR TELEPHONE CONFERENCES, AND EQUIPMENT OPERATING ACCORDING TO THIS METHOD.
JPS56149148A (en) Signal transmission system
ATE9622T1 (en) SYSTEM FOR PROCESSING AND TRANSMISSION OF PCM SIGNALS.
JPS56143033A (en) Input and output interface system
JPS57187726A (en) Digital circuit
JPS5335355A (en) Led modulation system
GB1338896A (en) Hybrid networks
JPS5441602A (en) Loop type data delivery system
JPS5310912A (en) Two-way multiplex transmission control system
JPS5723130A (en) Interface control system
JPS56149132A (en) Transmission system utilizing stand-by transmission line effectively
JPS5321512A (en) Multiplex transmission system
JPS5528616A (en) Drive system for transmission line
JPS52120709A (en) Common line signal system
JPS56124963A (en) Coupling system of double composite system
JPS5293206A (en) Data transmission system
FR2226077A6 (en) Data transmission between peripherals and central data processor - using main transmission channel and secondary channels connected to peripherals
JPS5683156A (en) Communication system of conversation type
JPS57120147A (en) Signal transmission system
JPS57111155A (en) Data transmission and receiving system
JPS5797741A (en) Optical transmission device with light distributing function
JPS5511667A (en) Information transmission system
JPS57212850A (en) Data transmitter
JPS5326640A (en) Single-cable separate group transmission system