Installation Guide

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LMU-303x Hardware & Installation Guide
3.3.2 Status LEDs
The LMU-303x™ contains one dual-colorstatus LEDs (amber and green). Please note that there are PEG
configuration parameters that can change the factory default behavior of all LEDs. LED behavior detail can be
reviewed in the table below:
LED Definitions and Behavior
Condition Order LED Color LED Frequency
Power On 1 Amber/Green Fast
GPS On
GPS Time Sync
2
Green
Slow blinking
2
Green
Fast blinking
GPS Fix
2 Green Solid for 10 s
Comms On & Searching
3
Amber
Slow blinking
Network Available
3
Amber
Fast blinking
Registered but no inbound
acknowledgement
3
Amber
Solid & Fast Blink every 1 s
Registered and received inbound
acknowledgement
3
Amber
Solid for 10 s
Vehicle Not Compatible
4
Amber/Green
Slow
Install Successful 5 Green Solid
4 Installing the LMU
4.1 Preventing Accidental or Unauthorized Modification
If you anticipate that fleet drivers or others might interfere with the LMUs once they are installed, take steps to
be sure that it is not easy to remove the LMU from its power source, etc. Two common methods are the use of
Tamper Proof Sealant or creation of PEG-2 Script to detect power loss or GPS antenna disconnections.
4.2 Installing the LMU in a vehicle
1. Make sure the vehicle is turned on/running when plugging in the unit. If the unit is plugged in while the
vehicle is off it will need to complete the detection process on the next ignition on cycle in order to operate
correctly.