CalAmp 200G Manuale Utente
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CalAmp Proprietary & Confidential
5.3 Installing the LMU in a Vehicle
This section provides instructions for installing an LMU in a vehicle.
Be sure to consider the design decisions described in the previous sections. When you are
ready to begin installing the LMU, follow these steps:
Be sure to consider the design decisions described in the previous sections. When you are
ready to begin installing the LMU, follow these steps:
5.3.1 Place the LMU unit in the vehicle.
LMUs with internal antennas should be placed to maximize their GPS performance. A
typical location include under the dash close to the front wind-shield.Attach the LMU to the
solid body of the vehicle, not to plastic panels. The LMU can be placed out of sight by
removing interior trim and molding to expose available space, then replacing the trim once
the LMU is in place.
solid body of the vehicle, not to plastic panels. The LMU can be placed out of sight by
removing interior trim and molding to expose available space, then replacing the trim once
the LMU is in place.
5.3.2 Connect power, ignition, and ground.
The power input (red wire) must be connected to a constant (un-switched) +12 VDC or
+24 VDC supply; preferably, connected directly to the vehicle battery terminal or as close to
it as possible. This connection point should be fuse protected to not more than 5 Amps.
The ignition input (white wire) must be connected to the vehicle ignition or another
+24 VDC supply; preferably, connected directly to the vehicle battery terminal or as close to
it as possible. This connection point should be fuse protected to not more than 5 Amps.
The ignition input (white wire) must be connected to the vehicle ignition or another
appropriate key operated line, such as ACCESSORY, ensuring that power to the ignition
wire is available only when the vehicle ignition is on.
The ground line (black wire) must be connected to chassis ground.
Failure to connect these lines in the manner described may result in discharge of the vehicle
battery.
For best results, it is strongly recommended that the LMU connection be on its own circuit.
wire is available only when the vehicle ignition is on.
The ground line (black wire) must be connected to chassis ground.
Failure to connect these lines in the manner described may result in discharge of the vehicle
battery.
For best results, it is strongly recommended that the LMU connection be on its own circuit.
Connect the power input directly to the vehicle battery if possible and protect the circuit
with an inline fuse. If you must connect through the fuse box, use standard commercial
wiring practices to create a permanent installation rather than using press-in fuse clips or
other temporary measures.
with an inline fuse. If you must connect through the fuse box, use standard commercial
wiring practices to create a permanent installation rather than using press-in fuse clips or
other temporary measures.
Figure 5 - Completed Install