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JPS55153045A - Communication circuit controller - Google Patents

Communication circuit controller

Info

Publication number
JPS55153045A
JPS55153045A JP6032879A JP6032879A JPS55153045A JP S55153045 A JPS55153045 A JP S55153045A JP 6032879 A JP6032879 A JP 6032879A JP 6032879 A JP6032879 A JP 6032879A JP S55153045 A JPS55153045 A JP S55153045A
Authority
JP
Japan
Prior art keywords
computer
communication circuit
circuit
over switch
change
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
JP6032879A
Other languages
Japanese (ja)
Inventor
Toshio Furuta
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 JP6032879A priority Critical patent/JPS55153045A/en
Publication of JPS55153045A publication Critical patent/JPS55153045A/en
Pending legal-status Critical Current

Links

Landscapes

  • Computer And Data Communications (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE: To replace and appreciate a computer with efficiency by supplying data to two computers via a communication circuit and then by supplying their outputs to the communication circuit or a monitor circuit.
CONSTITUTION: To replace computer 3 with computer 4, received data RD of communication circuit 6-1 are input to both the computer simultaneously via branch circuit 12. Transmitted data SD of computer 3 are sent out to communication circuit 6-1 via change-over switch 13. Transmitted data SD from computer 4 are output to a monitor circuit via change-over switch 13. Thus, the on-line appreciation of new type computer 4 comes into effect and then change-over switch 13 is switched to complete the replacement. Consequently, the sufficient on-line appreciating test can be taken economically.
COPYRIGHT: (C)1980,JPO&Japio
JP6032879A 1979-05-18 1979-05-18 Communication circuit controller Pending JPS55153045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6032879A JPS55153045A (en) 1979-05-18 1979-05-18 Communication circuit controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6032879A JPS55153045A (en) 1979-05-18 1979-05-18 Communication circuit controller

Publications (1)

Publication Number Publication Date
JPS55153045A true JPS55153045A (en) 1980-11-28

Family

ID=13138983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6032879A Pending JPS55153045A (en) 1979-05-18 1979-05-18 Communication circuit controller

Country Status (1)

Country Link
JP (1) JPS55153045A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010044142A1 (en) 2008-10-14 2010-04-22 富士通株式会社 Relay device, relay method and relay program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010044142A1 (en) 2008-10-14 2010-04-22 富士通株式会社 Relay device, relay method and relay program
US8385816B2 (en) 2008-10-14 2013-02-26 Fujitsu Limited Relay device and relay method

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