30 Digital Monitoring Products, Inc. | Troubleshooting Guide
CELL STATUS FAILURE
IDENTIFICATION CHART
STATUS: MEANING: WHAT TO VERIFY:
NO MODEM FOUND
The panel is unable to comunicate
with the modem�
With older firmware, the panel may
be performing an Automatic Over
The Air update (see Cause 4) �
1� The LTE modem is installed on an XR panel with
older firmware that does not support it� (XR > V172)
2� Damaged modem�
3� Incorrectly installed modem:
• Verify that the modem is correctly lined up on
the connector�
• Reset Panel and wait 1 minute after power up,
reset, exit programming to allow modem startup
process to finish�
4� For CDMA modems on firmware v122-v125: Wait 5
minutes after power up, reset, exit programming to
allow modem Automatic OTA to finish�
NO SIM CARD
After reading the SIM card, the panel
received ERROR from the modem
1� The SIM card is not installed�
• Verify that the SIM card is installed correctly�
• Verify that a SIM card is installed�
2� The Firmware may be too old to support the cellular
modem�
NO TOWER
LTE on XT & XR Series: The modem
has never been activated�
XT Series: The modem has told the
panel that it is trying to find a tower
but hasn’t yet�
XR Series: The modem has told the
panel that it cannot get registered
(only on XR Versions <V183) or is
trying to find a tower�
1� The LTE modem is not activated�
2� Poor signal strength�
• Verify Cell Signal in Diagnostics�
• Watch for 1 minute to verify the signal is not
dropping out�
3� LTE modem is installed on a panel with older
firmware which does not support it� (XR > V172)
NOT REGISTERED
The modem has told the panel that
registration has been denied�
1� Unregistered modem�
• Check with SecureCom or us TSinfo tools to
troubleshoot�
• Verify Cell Signal in Diagnostics� This can
occur if the modem has very poor signal and
repeatedly tries to register on the tower�
2� Incorrect APN�
APN ERROR
The panel received ERROR from the
modem in its attempt to activate a
PDP context�
1� The modem may not be activated�
2� Verify there is an IP address in communication
(XR150/550 v192+)
3� Bad or no APN�
4� LTE modem is registered on the tower but no longer
activated� This can occur on a modem that used to
be active but is now deactivated�
5� Verify the APN is programmed correctly�
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