LED Operation

Preface

Important Notice

Due to the nature of wireless communications, the transmission and reception of

data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors)

or totally lost. Although significant delays or losses of data are rare when wireless

devices such as the Sierra Wireless AirLink modem are used in a normal manner

with a well-constructed network, the Sierra Wireless AirLink modem should not be

used in situations where failure to transmit or receive data could result in personal

hazard or risk to the user or any other party, including but not limited to personal

injury, death, or loss of property. Sierra Wireless accepts no responsibility for

damages of any kind resulting from delays or errors in data transmitted or

received using the Sierra Wireless AirLink modem, or for failure of the Sierra

Wireless AirLink modem to transmit or receive such data.

Safety & Hazards

Do not operate the Sierra Wireless AirLink modem in areas where blasting is in

progress, or near medical equipment, life support equipment, or any equipment

which may be susceptible to any form of radio interference. In such areas, the

Sierra Wireless AirLink modem MUST BE POWERED OFF. The Sierra Wireless

AirLink modem can transmit signals that could interfere with this equipment.

Do not operate the Sierra Wireless AirLink modem in any aircraft, whether the

aircraft is on the ground or in flight. In aircraft, the Sierra Wireless AirLink modem

MUST BE POWERED OFF. When operating, the Sierra Wireless AirLink modem

can transmit signals that could interfere with various onboard systems.

Note: Some airlines may permit the use of cellular phones while the aircraft is on the

ground and the door is open. Sierra Wireless AirLink modem may be used at this time.

The driver or operator of any vehicle should not operate the Sierra Wireless

AirLink modem while in control of a vehicle. Doing so will detract from the driver

or operator's control and operation of that vehicle. In some states and provinces,

operating such communications devices while in control of a vehicle is an offense.

Basic Operation

Four status LEDs are visible from the front and top of the GX400 and

GX440 devices. Labeled Network, Signal, Activity, and Power, each

LED can display one of three colors: Green, Yellow, or Red. The

basic guidelines for LED operation are as follows:

• Off – No activity

• Green – Fully functional

• Yellow – Limited functionality

• Red – Not functional

• Blinking – Where needed, blinking can be used to indicate altered functionality.

The operation of each LED is as follows:

• Power/GPS LED:

· Off – No power or above 36V or below 7.5V

· Red – System not operational (failure or in low power mode)

· Green - System is up and normal operation

· Green with momentary Yellow flash every 3 seconds – GPS lock

· Yellow - System is entering low power mode or System Low Level Boot.

• Activity LED (activity on cellular link) - Pulse Green on packet transmit/receive on radio link. Otherwise, LED is Off.

• Signal LED (cellular signal)

· Green - Good signal (RSSI > -85 dBm

· Yellow - Marginal signal (< -85 dBm and > -100 dBm

· Red – Bad signal (< -100 dBm and > -110 dBm

· Flashing Red - No signal (< -110 dBm).

• Network LED (cellular network)

· Green - On the network

· Flashing Green (Wink Off) – Roaming

· Yellow – Found service, attempting to connect

· Flashing Yellow – Link down

· Red – No data connection available, or HW Passthrough.

Special States

• Radio Passthrough (HW) - Network LED is solid Red.

• Data Retry (Failed Auth and Retrying) - Network LED blinks Red every 3 seconds.

Power Up, Reboot, and Reset Codes

Power Up & Reboot

Briefly press the Reset button to initiate a power up or reboot. All LEDs turn Red,

then Yellow, then Green, and then light in the configurations below. After the

kernel has booted, while the ALEOS software is initializing, the Power LED turns

Yellow, then Green, and the Network LED will flash Yellow, change to a solid

Yellow, and finally turn Green.

Factory Configuration Reset

To reset the device to its factory defaults, press and hold the Reset button

continuously for 7 - 8 seconds. When all LEDs start flashing Yellow, release the

Reset button and the unit will re-boot with the factory default options.

Ethernet LEDs

Two Ethernet LEDs are visible at the Ethernet port on the rear panel of the GX400 and GX440 devices:

• Left LED (Activity) - Blinks Yellow when there is activity

• Right LED (Link Speed):

· Green – 100 Mbps

· Orange – 10 Mbps

Applicability

• Platforms: GX400 and GX440

• Software version: ALEOS 4.2