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Titan GSM
6.4. FUNCTION and ERROR lights flashing Long/Fast
•
This indicates the SIM card is blocked and a PUK code is required from
the service provider to unblock. The PUK code can only be entered via
the USB connection using the command: AT+CPIN
•
Alternatively, to check the operation of the installation, try another SIM
card, remembering to switch off before changing the SIM and to switch
on, once complete, to initialise the unit and new SIM correctly.
6.5. FUNCTION and ERROR lights flashing Short/Slow
•
This indicates a weak GSM signal.
•
If the unit has responded to the 1234stat0 SMS command, then compare
the results of the reported signal with the table below.
•
If the unit is not responding to the 1234stat0 SMS command connect a
laptop or similar computer to the internal USB port. Please see the
preconditions for using the USB port in section 5.2.
•
Signal level – the following is a guide to the received signal level along
with suggestion action to take.
Signal
Comment
Action Required
-104 to -100dBm
Very weak signal,
connection not reliable
Essential to re-site the
external antenna.
-99 to -90dBm
Poor signal, connection
should be reliable but
speech may be subject to
interruption due to signal
fading effects
Performance should be
improved by re-siting the
external antenna
-89 to -70dBm
Good signal condition
None specifically, re-
siting antenna may give
further improvement
-60 to -50dBm
Very good signal
condition
None
7. Maintenance
Titan GSM requires very little maintenance in normal use, but please take
note of the following to ensure that the telephone is kept in good working
order:
7.1. Diagnostic check
Perform a regular status check by sending an SMS:
Summary of Contents for Titan GSM
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Page 34: ...34 Titan GSM...
Page 35: ...Titan GSM 35...
