Service manual

Chapter 14
14-35
T-14-77
T-14-78
(2) To prevent response to the 1st DIS from the other party, put a relatively
long pause to the telephone number when registering an auto-dialing
number.
(3) Ask the operator of the other party to provide echo remedy 1.
(4) Ask the operator of the other party to decrease the transmission level so
that the other party will not receive an echo.
##775 [TX] In ECM transmission, no significant signal can be received after
transmission of EOR-MPS, and the allowed number of procedure signal
re-transmissions was exceeded
Cause: The line condition is poor, and the other party cannot receive EOR-MPS
correctly.
Remedy: (1) Increase the transmission level so that the other party may receive
EORMPS correctly.
(2) Adjust the NL equalizer so that the other party may receive EOR-MPS
correctly.
(3) Add an echo protect tone to the V.29 modem signal for transmission.
Cause: The line condition is poor, and the significant signal cannot be received
correctly.
Remedy: Ask the operator of the other party to increase the transmission level so that
the signal may be received correctly.
##777 [TX] In ECM transmission, DCN was received after transmission of EOR-
MPS
Cause: The line condition is poor, and the other party cannot receive EOR-MPS
correctly.
Remedy: (1) Increase the transmission level so that the other party may receive
EORMPS correctly.
(2) Adjust the NL equalizer so that the other party may receive EOR-MPS
correctly.
(3) Add an echo protect tone to the V.29 modem signal for transmission.
Cause: The Stop key was pressed during a communication.
Remedy: Transmit once again.
##774 [TX] In ECM transmission, ERR was received after transmission of EOR-
NULL