Method for testing a digital data transmission line between two

Details Method for testing a digital data transmission line between two Method for testing a digital data transmission line between two

1980-09-16

1982-09-21

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

1791752R, 371 22, 371 27, 371 34, H04L 114, H04L 116, H04B 346

Patent

active

043510590

ABSTRACT:
A method for testing a digital data transmission line connected between two modems, including the steps of transmitting a test message from the first modem to the second modem, comparing the received message with the standard test message to determine errors, transmitting a test message back to the first modem along with the error message determined from comparing the received test message with the standard test message at the first modem. The error signal transmitted to the first modem and the error detected there is interpreted to determine the error in the transmission.

REFERENCES:
patent: 3824548 (1974-07-01), Sullivan et al.
patent: 3934224 (1976-01-01), Dulaney et al.
patent: 4034195 (1977-07-01), Bates

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