Trimble Inc. CCKCDPD Benutzerhandbuch
CrossCheck CDPD Mobile Unit Manual 1 9
Installation 2
Direct Connection through Mounting Screws
To mount the CrossCheck CDPD Mobile Unit on a metal surface that
is permanently attached to the vehicle chassis (for example, the base
of the trunk, or a mounting plate that is permanently attached to the
chassis using metal screws):
is permanently attached to the vehicle chassis (for example, the base
of the trunk, or a mounting plate that is permanently attached to the
chassis using metal screws):
1.
Fasten down the CrossCheck CDPD using metal screws driven
through the metal tabs on the sides of the unit.
through the metal tabs on the sides of the unit.
2.
Use star washers to ensure a reliable electrical contact to the
metal tabs.
metal tabs.
3.
Make sure the screws are tight, and that they make contact both
with the metal on the CrossCheck CDPD and with the vehicle
chassis.
with the metal on the CrossCheck CDPD and with the vehicle
chassis.
Note – If this direct connection through mounting screws method is
used for chassis connection, then the chassis ground (pin 3 on the
power and discrete I/O connector) on the CrossCheck CDPD should
be left unconnected.
used for chassis connection, then the chassis ground (pin 3 on the
power and discrete I/O connector) on the CrossCheck CDPD should
be left unconnected.
Connection through the Chassis Ground Wire
If the CrossCheck CDPD cannot be mounted directly on a metal
surface that is attached to the vehicle, then use the chassis ground wire
(pin 3 on the power and discrete I/O connector) to make electrical
contact to the vehicle chassis:
surface that is attached to the vehicle, then use the chassis ground wire
(pin 3 on the power and discrete I/O connector) to make electrical
contact to the vehicle chassis:
1.
Use a wire with gauge of at least 18 AWG to connect the
CrossCheck CDPD power connector to the vehicle chassis.
CrossCheck CDPD power connector to the vehicle chassis.
2.
Use a metal screw with a star washer to ensure a reliable
electrical contact to the vehicle chassis.
electrical contact to the vehicle chassis.
3.
Keep the wire length as short as possible by selecting a
connection point in the vehicle chassis that is close to the
CrossCheck CDPD.
connection point in the vehicle chassis that is close to the
CrossCheck CDPD.