SEM300 TROUBLESHOOTING
GUIDE
ADDRESSING THE KEYPAD
The default keypad address the SEM uses is Keypad 8 Device Address 23. If this keypad address is disabled, the SEM and panel will not communicate properly. However, at first power-up, the SEM will attempt to enable this address automatically. If unsuccessful, the address must be enabled manually via programming *196.
| Keypad address | DIP switch setting | VISTA programming command |
| 17 | None—all OFF | *190 |
| 18 | Switch 4 ON, others OFF | *191 |
| 19 | Switch 3 ON, others OFF | *192 |
| 20 | Switch 3 and 4 ON, others OFF | *193 |
| 21 | Switch 2 ON, others OFF | *194 |
| 22 | Switch 2 and 4 ON, others OFF | *195 |
| 23 | Switch 2 and 3 ON, others OFF | *196 |
If another keypad is occupying this address already, a different address must be selected for the SEM. To select a different keypad address, manually adjust the dual in-line package DIP switches on the SEM to match the desired keypad address listed below. Then, exit programming via *99.
GATEWAY LED REFERENCE
The enclosure gateway LEDs can be used to indicate communication errors, panel communication, network communication, and signal strength.
Note: For advanced troubleshooting, open the cover to look at the Alarm.com module LEDs.
TROUBLE LED
The TROUBLE LED flashes 1 to 8 times in a four-second interval to indicate specific error conditions.
| Flash pattern | Description |
| 1 | The Alarm.com module cannot communicate with the panel. Perform a power cycle on the panel. If the error persists, lift the Alarm.com module out of the SEM circuit board and re-insert it while power is disconnected from the system. |
| 2 then 4 | The Alarm.com module provisioning process could not be completed. Power-cycle the system. If the error persists, see Alarm.com CORE Technical Support. |
| 2 then 5 | The Alarm.com module provisioning process could not be completed because the module is currently roaming off the carrier’s primary network. |
| 3 | The Alarm.com module is trying to register on the cellular network. If it persists for more than a few minutes, the module is having problems registering. Check L4 for signal level. If signal level is lower than 2 bars, change the panel’s location or use a remote antenna option. |
| 4 | The Alarm.com module is registered on the cellular network but could not connect with Alarm.com. If the error persists, see Alarm.com CORE Technical Support. |
| 5 | The radio on the module is not working correctly. If this persists for more than a few minutes, the module may need to be replaced. This error is extremely rare, so please verify that the module is flashing 5 times. |
| 6 | This indicates an error only if it persists for more than a minute. Otherwise, it’s an indication that the module is resolving an unusual condition regarding communication with the cellular network. |
| 7 | The SEM is unable to access panel programming. Check the panel wiring and installer code. |
8 Email alarms@alarmsystemstore.com or call Alarm System Store for assistance: 888-811-0727
PATH LED
The PATH LED flashes to indicate the active communication path (cellular, broadband, or both) to Alarm.com.
| Flash pattern | Description |
| Steady long flash (~2 sec) | The cellular communication path is active. |
| Long flash (~2 sec) followed by a short flash (~0.5 sec) | Both cellular and broadband communication paths are active. |
| Steady short flash (~0.5 sec) | The broadband communication path is active. This should also accompany an error LED flash. |
| No flash | Both communication paths are not communicating. This should also accompany an error LED flash. |
SIGNAL LED
The SIGNAL LED flashes to indicate the cellular signal strength (0 to 6 bars).
PANEL LED
The PANEL LED flashes with every communication to the panel.
POWER LED
The POWER LED illuminates solid when power is supplied.
SPECIFICATIONS
| Power requirements | 13.6 V nominal, 125 mA nominal (continuous), 230 mA maximum |
| Cellular network | 4G LTE with 3G HSPA, 2G GSM fallbackTwo keypad BUS connections, 12 V power and ground Five LEDs (red, yellow, or green) |
| Five LEDs (red, green, yellow, or blue) | |
| Operating temperature | 14 to 131°F (-10 to 55°C) |
| Storage temperature | -30 to 140°F (-34 to 60°C) |
| Humidity | 90% relative humidity non-condensing |
| Enclosure dimensions | (L x W x D) 7.66 x 4.35 x 1.65 in. (19.46 x 11.05 x 4.19 cm) |
| Enclosure color | White |
| Case material | Fire-retardant PC/ABS, PC |
Documents / Resources
 |
ALARM COM SEM300 Communicator Device [pdf] User Guide SEM300, Communicator Device, SEM300 Communicator Device |
