LTE Mini-Physical Interface Module LEDs
Figure 1 shows the LEDs on the LTE Mini-PIM.

Table 1 lists the LEDs on the LTE Mini-PIM and their indications.
LED |
Description |
---|---|
SIG (Received Signal Strength Indicator) |
Solid green (one bar)—Low signal strength (<= –99 dBm). |
Solid green (two bars)—Low signal strength (from –98 dBm to –87 dBm). |
|
Solid green (three bars)—Low signal strength (from –86 dBm to –76 dBm). |
|
Solid green (four bars)—High signal strength (>= –75 dBm). |
|
Unlit—No signal |
|
3G |
Solid green—3G connection is established. |
Blinking green—Connecting to a 3G network. |
|
LTE |
Solid green—LTE connection is established. |
Blinking green—Connecting to an LTE network. |
|
SIM1 |
Solid green—SIM1 is active. |
SIM2 |
Solid green—SIM2 is active. |
If all the LEDs are blinking, it indicates that firmware updates are in progress. Do not power off the services gateway before the updates complete.