User Manual
Troubleshooting YORK Marine, Controls
Revision 1.3 · Updated: 070507 Author: Marc Anderson · Owner: RS
Project : SMS Bridge Page 14 of 15
File: e:\york\sms bridge\manual\smsbridge-manual_13.doc
Troubleshooting, Continued
SMSHandler (continued)
Problem Likely Cause Solution
Wrong COM port Select correct COM port
in configuration dialog
Error starting and severe
log message: Unable to
open specified com port Modem cable not
connected
Check connections
Modem cable not
connected
Check connections
Wrong BAUD rate Select correct BAUD
setting (115200) in
configuration dialog
Error starting and severe
log message: Modem
activity query failed
Defective modem Contact YORK service
Service starts, modem
LED flashes but test
messages fail
Missing or wrong service
center number
Enter the SMS service
center number for the
GSM provider in the
configuration dialog.
Poor GSM signal Verify that modem
antenna is connected and
that there is a good signal
Service starts but LED
does not flash
Defective modem Contact YORK service
E-mail error
messages
Use the table below to troubleshoot the most common errors generated by the
MailHandler service.
Problem Likely Cause Solution
GMS modem loses
registration on GSM
network
Poor GSM signal Allow modem to re-
register. If problem
persists, verify that
modem antenna is
connected and that there
is a good signal
SIM card removed from
modem
Replace SIM card
Cable disconnected or
USB adaptor moved
Check cable connections
between modem and PC.
If using a USB to Serial
Port adaptor, verify port
assignment.
Modem power failure Check connections to
modem power supply
Restart of GSM modem
fails
Defective modem Contact YORK service