Firstech, LLC. CM4200 - Manual (Page 13)

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Antenna Mounting
CompuStar antennas can, in general, be mounted with any orientation. Horizontal or
vertical, doesn’t really matter. Things to consider would be the routing of the antenna
cable, and mounting the antenna a few inches down from the roof and/or tint line. If the
antenna cable is pinched or crimped on its way to the antenna, the system may experience
problems such as; poor range, one-way communication on two-way models, or possibly
no response at all. Metal acts as a natural shield to radio frequency signals so mounting
the antenna close to the roof, or behind some kinds of tint that have metal content to
them, can cause poor performance.
Dipswitch and Jumper Settings
Dipswitch settings for:
CM3000, CM3200, CM3300, and CM4200
1. Dipswitch #1 will select the engine-sensing mode, tach or alternator. The ON
position is for tach sensing (Note: Factory default is tach sensing.) The OFF
position is for alternator sensing.
2. Dipswitch #2 will select the remote start run time. The OFF position will
provide a 15-minute run time for gas vehicles and a 25-minute run time for
diesel vehicles. The ON position will provide a 25-minute run time for gas
vehicles and a 45-minute run time for diesel vehicles.
Jumper settings for:
CM4200
1. Jumper #1- 2
nd
Ignition 12-volt (+) positive output to the blue wire on
connector 1.
2. Jumper #2- 2
nd
Accessory 12-volt (+) positive output to the blue wire on
connector 1.
3. Jumper #3- 2
nd
Starter 12-volt (+) positive output to the blue wire on
connector 1.