© 2021 Cypress Solutions Manual: CTM-ONE (Revision 1.0)
General Troubleshooting Operation
All LEDs remain off when
the device is powered
• No power is being applied to the CTM-ONE
• Check power supply make sure min. 9 VDC is being supplied
• The device is in standby mode
• Ensure the standby signal is connected to greater than 9VDC
• Ensure the supply voltage is greater than 9VDC.
• Remember that the device is designed to go into standby
mode if the standby signal is off after a configured time period
(e.g. 10 seconds by default)
PWR LED ON all other LED
OFF
• Device is booting Linux
Device is constantly
rebooting every 4 minutes
with no user input.
Only PWR LED and GPS
LED (solid or flashing) are
on.
• Incorrect cellular device is configured. The CTM-ONE is
configured by default to auto connect to a cellular network. If
the CTM-ONE determines that communication with the internal
cellular radio module or device is not working, it will attempt to
reset the communication port; this will result in continual
system reboots if incorrect module/device is selected.
• No valid GPS fix. The GPS antenna requires a clear view of the
sky to obtain a valid GPS fix. The time to fix can vary from a
few seconds to several minutes depending on conditions.
• GPS LED flashing has no impact on cellular connectivity.
• RF signal may not be available; CTM-ONE is located in an area
of no cellular activity.
• Cellular device is not registered on the network; make sure
radio module/device/SIM has been activated on the network.
• Incorrect configuration of internal radio module, ensure correct
device has been configured
Cellular LED (solid or
flashing)
• CTM-ONE is registered on the network and is in an area of 3G
or 4G coverage but device has not obtained an IP address
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