Motorola VC5090 Quick Reference Manual page 7

Quick Reference Guide
7.
Secure the door to the back housing using the four screws. Torque to
9 ± 0.5 kgf.cm (7.8 ± 0.4 in-lbs).
Installing the Optional UPS
The use of the optional UPS battery is recommended in every
NOTE
case the power to the VC5090 can be unintentionally
interrupted during operation.
It is strongly recommended when AC power source susceptible
to power failures is used to power the VC5090.
To install the optional UPS:
CAUTION
1.
Place the Main Power switch on top of the vehicle computer to the off
position.
2.
Remove and discard the eight screws securing the UPS/Memory Card
door on the back of the vehicle computer.
3.
Connect the UPS cable connectors to the connector on the printed
circuit board (PCB) and on the UPS.
Connector on PCB
4.
Place the UPS into the well.
5.
Place the UPS/Memory Card door over the UPS and secure using the
eight new screws supplied with the UPS kit.
CAUTION
Use ESD precautions when installing the UPS.
Be sure to torque the screws to seal the device properly.
Otherwise, sealing can be compromised.
UPS
7