Service manual

Troubleshooting Tables
4-13
Table 4-8 Transmission (Option #A05 only)
Message Possible Cause Possible Solutions
Telephone busy, waiting to redial Busy telephone ay remote site. Normal event. The cardiograph will
redial, waiting 30 seconds between
attempts, until the line is open or until the
operator stops the transmission.
No answer, re-dialing Remote modem not connected, or the car-
diograph modem is set to wait for an
answer for too few rings
Be sure the remote site is ready to receive
the transmission. If necessary, extend the
time the modem will wait for a connec-
tion by adding the string “S7=90” to the
modem initialization string.
Check telephone cable No dial tone. Check the telephone cable connection to
the modem. Attach the telephone cable to
a telephone to verify a dial tone on the
line.
Check modem and cable No power to modem, or poor modem
cable connection.
Defective cable.
Defective modem.
Check that the data cable is attached to
the modem and to the cardiograph’s RS-
232 port. Check operation of the RS-232
port.
Replace the data cable.
Run the modem self-test. Replace modem
if defective.
Check cable Poor cable connection between cardio-
graph and TraceMaster system.
Defective cable.
Check that the data cable is attached to
the cardiograph’s RS-232 port. Check
operation of the RS-232 port.
Replace the data cable.
Check modem configuration Incompatible or improperly initialized
modem
Check the modem initialization string for
legal modem commands. See you modem
documentation for legal commands for
your modem.