Installation guide

LMU Users Guide
V1.0.6 December 10 2009
Copyright ©CalAmp DataCom Inc 2009
- 40 - CalAmp Proprietary & Confidential
5.3
The LMU-4100 also supports messaging for two specific serial devices, the Garmin NUVI
and the MacKenzie Labs DAD-A1214. For which messages are supported for each device,
please refer to the PEG Programming Guide.
Using The Garmin NUVI or MacKenzie Labs DAD-A1214
Both the device selection and which port the device is connected to are dictated by S-
Register 173. The lower 4 bits dictate the device and the upper 4 bits dictate the destination
port. The bit mappings are as follows:
• Bits 5 and 7 – These bits define which serial port the canned message is sent to. The
options are:
o 0 = Host Port
o 1 = Modem Port
o 2 = Aux Port
o 3-31 = Reserved
• Bits 0 and 4 – These bits define which device the LMU is connected to. The options
are:
o 1 = Mackenzie LABs DADS-A1214
o 2 = Garmin NUVI
o 0,3-31 = Reserved
For example, to use the DADS-A1214 on the Aux Port, you would use:
ATS173=65 (0x41)
To use the Garmin NUVI on the Host Port, you would use:
ATS173=2 (0x02)