Chapter 6 - Application Notes; Led Interface - Multitech SocketModem Cell Device Manual

Chapter 6 – Application Notes

LED Interface

The LED signal indicates the SocketModem working status.
LED 1 – Heartbeat –IP and –GP Builds Only
LED 1 Signal
OFF
Blinking
LED 2 – Link Status – All Builds
LED 2 Signal
OFF
ON
Note:
For non-IP builds, to ensure that the Link Status LED works properly, issue the following AT Command
sequence to the GPIO:
AT#GPIO=1,0,2
AT#SLED=2
LED 3 – Signal Strength –IP and –GP Builds Only
LED 3 S ignal
OFF
Blinking
LED 4 – GPS Status – GP Builds
LED 4 S ignal
OFF
ON
SocketModem CDMA MTSMC-C2 Device Guide
Heartbeat LED
No power to the unit.
Power on.
Link Status LED
Device off.
Continuously lit During initial connection to tower or when connected and
passing data.
Slow blink (-0.2Hz) Registered to tower and idle.
Faster blink (-3Hz) Powered not registered/Searching for registration.
Signal Strength LED
No signal
The faster the LED blinks, the stronger the signal. The blink rate range is -0.5Hz to -
10Hz.
GPS Status LED
No power to the unit.
Continuously lit Satellite not acquired.
Blinking Satellite acquired.
CHAPTER 6 –APPLICATION NOTES
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