Installation guide

LMU-4200™ Hardware and Installation Guide

V1.0.9 November 13, 2010

- 7 - CalAmp Proprietary & Confidential

1.3.3 Serial Interface Connectors

The LMU-4200™ offers 2 serial interface connections (Host/Aux1 and Aux 2) on its front

face. These are provided via 2 Molex 43650-0501 connectors using the following pin outs.

Pin Signal Name Description Input or Output

1 VIN_FILT Filtered LMU Power Power Supply

2 VCC3V3 3.3V Power Power Supply

3 Ground Ground Ground

4 TX Transmit Data Input to LMU

5 RX Receive Data Output From LMU

Figure 4 – Serial Interface Connector

Users should only use CalAmp approved serial adapters with these connections. (Part

Number 133337-5 and 133564-1)

Figure 5 - LMU-4200™ Serial Cable Plugged into Aux 1