Table 8-1: LED indicator lights
LED
Color /
Pattern
Description
LED Power Saving Mode
ALL
Green
LED
chase
Radio module reconfiguration/firmware update or Network Operator
Switching is in progress.
Amber
LED
chase
Firmware update is in progress.
Solid
Amber
Firmware update complete (all LEDs are amber except the Power LED)
Red LED
chase
The modem is in Recovery mode.
8.3 Signal strength
Received signal strength (RSSI) may indicate the quality of connection to a cellular tower. The
units of the RSSI are –dBm; –70 is a stronger signal than –100.
l
-78: good
l
-78 to -93: fair
l
- 94 to -102: poor
l
less than -103: inadequate
Because the RSSI can vary due to multipath, interference, or other environmental effects, it may
not give a true indication of communication performance or range. However, it can be useful for
activities such as:
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determining the optimal direction to aim a Yagi antenna
l
determining the effects of antenna height and location
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trying alternate (reflective) paths
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seeing the effect of vegetation and weather over time
Find your module signal strength through ACEmanager. Click Status > Cellular and look for
Signal Strength (RSSI).
RV50(X) Sierra Wireless AirLink® 4G LTE Cellular Modem
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