JPS52132702A - Modem interface switching system - Google Patents

Modem interface switching system

Info

Publication number
JPS52132702A
JPS52132702A JP4966576A JP4966576A JPS52132702A JP S52132702 A JPS52132702 A JP S52132702A JP 4966576 A JP4966576 A JP 4966576A JP 4966576 A JP4966576 A JP 4966576A JP S52132702 A JPS52132702 A JP S52132702A
Authority
JP
Japan
Prior art keywords
interface switching
switching system
modem interface
interface
modem
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.)
Granted
Application number
JP4966576A
Other languages
Japanese (ja)
Other versions
JPS5532307B2 (en
Inventor
Toyokazu Hashimoto
Kazuo Tanaka
Masahiko Tamaki
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 JP4966576A priority Critical patent/JPS52132702A/en
Publication of JPS52132702A publication Critical patent/JPS52132702A/en
Publication of JPS5532307B2 publication Critical patent/JPS5532307B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer And Data Communications (AREA)
  • Small-Scale Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE:To enable the fixed length for the interface cable and to relieve the limitation of system layout, by changing the mounting method of the interface switching units.
JP4966576A 1976-04-30 1976-04-30 Modem interface switching system Granted JPS52132702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4966576A JPS52132702A (en) 1976-04-30 1976-04-30 Modem interface switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4966576A JPS52132702A (en) 1976-04-30 1976-04-30 Modem interface switching system

Publications (2)

Publication Number Publication Date
JPS52132702A true JPS52132702A (en) 1977-11-07
JPS5532307B2 JPS5532307B2 (en) 1980-08-23

Family

ID=12837460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4966576A Granted JPS52132702A (en) 1976-04-30 1976-04-30 Modem interface switching system

Country Status (1)

Country Link
JP (1) JPS52132702A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61274451A (en) * 1985-05-29 1986-12-04 Fujitsu Ltd Switching system for communication control equipment
JPS6367946A (en) * 1986-09-10 1988-03-26 Hitachi Ltd Line switching device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603771U (en) * 1983-06-22 1985-01-11 三菱電機株式会社 Elevator position display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61274451A (en) * 1985-05-29 1986-12-04 Fujitsu Ltd Switching system for communication control equipment
JPS6367946A (en) * 1986-09-10 1988-03-26 Hitachi Ltd Line switching device

Also Published As

Publication number Publication date
JPS5532307B2 (en) 1980-08-23

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