LMU-2x20™ Hardware and Installation Guide
V1.0.10
December 12, 2010
Copyright ©Calamp Wireless Networks Inc 2010
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CalAmp Proprietary & Confidential
3.2.3.1
Attaching the Pig-Tail Serial Adapter
These instructions describe how to connect the Serial Pig-Tail Adapter to the LMU-2x30™’s
20 Pin wiring harness. It is recommended that the LMU be powered-off and the cable
detached when installing the lead kit. Insert crimped pins, one at a time into the back of the
20-pin wiring harness connector as indicated in the steps below.
1.
Install Black ground lead to pin 1 of 20-pin connector on wiring
2.
Install Blue TXD lead to pin 4 of 20-pin connector on wiring harness.(if pin 1 is
occupied, alternate locations are pin 16, and pin 19)
3.
Install Green RXD lead to pin 13 of 20-pin connector on wiring harness
4.
Install Orange VDD lead to pin 9 of 20-pin connector on wiring harness
Figure 8 - Back view of 20-pin connector