Psion Teklogix Vehicle-Mount Computer 8515 User Manual page 159

Figure 6.12 Connections To Vehicle DC Supply
Without Power Pre-regulator
Extension wire
Negative Positive
connection connection
- +
Note: When installing the 8515 on vehicles operating on 24 Volts and above, the
diode assembly (supplied with the extension power cable 13985) should be
used to reduce the AC ripple produced by the SCR traction motor controller
on the vehicle.
To connect the diode, push the male connector on the diode assembly into the
female connector on the positive (red) lead of the power cable. If the fuse
assembly is already installed, connect the diode assembly to the fuse assembly
as described in the previous sentence. Connect the red wire from the diode
assembly to a fused power source on the vehicle.
It is recommended that all connections be secured with electrical tape or heat
shrink to prevent contaminants from degrading the connection.
8515 power cable
Lines to screen-blanking sensor
(optional)
Extension power cable
Fuse assembly
Diode/choke assembly
Vehicle power supply
(24V or less)
Psion Teklogix 8515 Vehicle-Mount Computer User Manual
Chapter 6: Peripheral Devices & Accessories
Wiring Vehicle Power To The 8515
With Power Pre-regulator
8515 power cable
Screen-blanking adaptor cable
(optional)
Power pre-regulator
Extension power cable
(without screen-blanking sensor)
Fuse assembly
Extension wire
Diode/choke assembly
Negative Positive
connection connection
- +
Vehicle DC power supply
(greater than 24V)
Lines to screen-blanking sensor
139