LED Indicators

LED indicators on the Cellular Expansion Card.

Label #

Indicator

Name

State and description

A

LED4

Backup SIM

OFF - indicates no backup SIM detected

Flashing slowly - indicates connecting

ON - indicates sending/receiving data from the backup SIM network

B

LED1

Power

ON - indicates power is available

C

LED7 to LED10

GSM signal strength

All OFF indicates no signal

All ON indicates strong signal

LED10

GSM signal

Flashing - indicates waiting to detect a signal

D

LED5

WiFi client

OFF - indicates deactivation

Flashing fast - indicates connecting

Flashing slowly - indicates scanning

ON - indicates sending/receiving data from the WiFi network

LED6

WiFi hotspot

OFF - indicates deactivation

ON - indicates that the hotspot is enabled

LED5 + LED6

WiFi client and WiFi hotspot

ON - indicates loading the WiFi module

Toggle 3 times indicates WiFi M2M app is not found

Toggle 5 times indicates WiFi M2M app cannot be loaded

E

LED3

Main SIM

OFF - indicates no main SIM is detected

Flashing slowly - indicates connecting

ON - indicates sending/receiving data from the main SIM network

F

LED2

Status

ON - indicates sending/receiving data from the GSM network

SE1-CELL-PCB-L GPS Expansion Only

SE1-CELL-PCB-L GPS Expansion does not support WiFi, so LED5 and LED6 signify GPS and satellite status.

D

LED5

Client

OFF - indicates no satellites have been discovered

ON - indicates satellites have been discovered as well as their location

LED6

Hotspot

OFF - indicates the GPS is deactivated

ON - indicates the GPS is enabled