SCOM-100, User guide 66
The ready LED goes off
after the start up
sequence.
Case 1: Error LED is off
You started the unit for the first time
and the SIM card does not contain
a user name and phone number in
the phone book directory. See
chapter 3.1.
Case 2: Error LED is on
An error occurred during start up.
See chapter 9.4 & 9.5.
The unit does not
respond to SMS at all.
The unit does not register to the
GSM provider network. Check if the
‘NETWORK’ LED is blinking.
Connect a proper GSM antenna to
the unit (See chapter 2.6)
The unit does not
respond to configuration
SMS commands.
The ‘Response SMS’ parameter is
probably off. Set the parameter to
on state.
Read chapter 6.2.1
The unit does not
execute my digital
output control
commands.
Check the status LED.
The unit is probably in STOP or
MONITOR status. Set the unit
status to RUN. See chapter 6.1.
Read the SMS response to your
command.