Multitech MTSMC-C-N3 User Manual download pdf (Page 22)

CHAPTER 5 – APPLICATION NOTES

SocketModem EV-DO MTSMC-EV3 Device Guide

Chapter 5 – Application Notes

LED Interface

The LED signal indicates the SocketModem working status. Refer to the mechanical drawing for LED locations.

LED 1 – Heartbeat – IP and –GP Builds Only

LED 1 Signal

Heartbeat LED

OFF

No power to the unit.

Blinking

Power on.

LED 2 – Link Status – All Builds

LED 2 Signal

Link Status LED

OFF

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.

N 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 1 Signal

Heartbeat LED

OFF

No signal

Blinking

The faster the LED blinks, the stronger the signal. The blink rate range is -0.5Hz to -10Hz.

LED 4 – GPS Status – GP Builds

LED 4 Signal

GPS Status LED

OFF

No power to the unit.

Continuously lit

Satellite not acquired.

Blinking

Satellite acquired.

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Multitech MTSMC-C-N3 User Manual Page 22

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