Installation guide

LMU-4200™ Hardware and Installation Guide

V1.0.9 November 13, 2010

- 26 - CalAmp Proprietary & Confidential

o [./L]:

This field indicates if the LMU’s log is currently active. An ‘L’ indicates that

the log is currently in use (i.e. one or more records have been stored) where a

‘.’ indicates the log is inactive.

o [IP Address]:

This is an optional field if and is only present if the LMU has established a

valid data session. This field will contain the current IP address of the LMU as

assigned by the wireless network. Note that if you see a value of 192.168.0.0,

this is an indication that the LMU has not been able to establish a data session.

o [<APN>]

The current Access Point Name in use by a GSM LMU.

 GPS:

o [Antenna <Short/Open/Off>]:

This field, if present, indicates a problem with the LMU’s GPS antenna. A

value of Short indicates that the antenna cable has likely been crushed. A value

of Open indicates that the antenna cable is either cut or disconnected. A value

of Off indicates that the LMU’ GPS receiver is off.

o [No Time Sync]:

If this field is present, it indicates that the LMU’s GPS receiver has not been

able to find even a single GPS satellite. This would likely been seen in

conjunction with the above antenna error, or if the LMU GPS antenna is

otherwise blocked

o [<FixStatus> <Sat Count>]:

If these fields are present it indicates that the LMU has, or had a valid GPS

solution. The <Sat Count> field indicates how many GPS satellites are

currently in use by the LMU. The <FixStatus> field indicates the type of fix.

The Fix Status types are detailed in the LM Direct Reference Guide.

 INP:

o <input states>:

This field details the current state of each of the LMU’s discreet inputs. This

field is always 8 characters long. The left most character represents the state of

input 7 where the right most represents the state of input 0 (i.e. the ignition).

A value of 1 indicates the input is currently in the high state. A value of 0

indicates it is currently in the low state.

o <vehicle voltage>:

This field will contain the current reading of the LMU’s internal A/D. This

will be the supply voltage provided to the LMU in mV.

 MID:

o <mobile ID>:

This will be the current mobile ID in use by the LMU.

For example you may see this if the vehicle is in a garage when the LMU is powered up.