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UserGuide-SentryPlusAlert 2007
© 2020 Watts
Troubleshooting (continued)
Possible Cause 3
Cellular reception might not be supported at your site .
The Cellular Gateway operates using 3G technology on band 2 or 5 .
Mobile phone
reception is not a reliable indicator of expected signal strength for the
Cellular Gateway.
Solution 3
If you cannot find cellular reception anywhere at your site, you may not have carrier coverage
at your site . Contact Syncta’s Customer Support team at 888-725-4285 for more information .
POWER LED is Off
If the POWER LED is off, make sure the Cellular Gateway is plugged in and that the power
outlet is active . If the device is still not working, review the possible cause and solution below .
Possible Cause
If the Cellular Gateway is plugged in and the POWER LED is off, the +12Vdc & GND wiring
inside the Cellular Gateway might have been accidentally swapped .
Solution
Use the instructions on the next several pages to swap the +12Vdc and GND wiring inside the
Cellular Gateway .