JPS5760749A - Test system for data communication line - Google Patents

Test system for data communication line

Info

Publication number
JPS5760749A
JPS5760749A JP55135521A JP13552180A JPS5760749A JP S5760749 A JPS5760749 A JP S5760749A JP 55135521 A JP55135521 A JP 55135521A JP 13552180 A JP13552180 A JP 13552180A JP S5760749 A JPS5760749 A JP S5760749A
Authority
JP
Japan
Prior art keywords
circuit
turning
test
continuous signal
data signal
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
JP55135521A
Other languages
Japanese (ja)
Inventor
Tomoji Ito
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55135521A priority Critical patent/JPS5760749A/en
Publication of JPS5760749A publication Critical patent/JPS5760749A/en
Pending 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
    • H04L1/24—Testing correct operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To perform the test without requiring skill specially, by inputting a continuous signal corresponding to turning-on and off of a data signal separately from the data signal to test the circuit by using a simple display means of a low response speed. CONSTITUTION:A data signal (c) is supplied to a selective fixed terminal 11a of a switch 11 for line test, and a turning-on continuous signal (d) and a turning-off continuous signal (e) are supplied to selective fixed terminals 11b and 11c respectively. The movable terminal of this switch 11 is connected to an inverting circuit 12 and a constant current circuit 13 of a control place A, and the output of the circuit 12 is connected to a constant current circuit 14. This circuit 13 is operated by the turning-on continuous signal (d), and the circuit 14 is operated by the turning-off continuous signal (e), and prescribed voltages with 0V as references are generated at branch points 16a and 16b of a data communication line 15 from voltage generation sources E1 and E2. Signals from branch points 16a and 16b are received by a receiving circuit 21 of a place B to be controlled, and thus, a simple tester or the like is used to test the data signal.
JP55135521A 1980-09-29 1980-09-29 Test system for data communication line Pending JPS5760749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55135521A JPS5760749A (en) 1980-09-29 1980-09-29 Test system for data communication line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55135521A JPS5760749A (en) 1980-09-29 1980-09-29 Test system for data communication line

Publications (1)

Publication Number Publication Date
JPS5760749A true JPS5760749A (en) 1982-04-12

Family

ID=15153704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55135521A Pending JPS5760749A (en) 1980-09-29 1980-09-29 Test system for data communication line

Country Status (1)

Country Link
JP (1) JPS5760749A (en)

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