Psion 8585, User Manual

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Psion 8585/8595 Vehicle-Mount Computers User Manual
Chapter 4: Installing The Computer
Position of the 8585 in the Vehicle
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A 1.8 meter (6 ft.) extension power cable (PN 13985–301) is available which should be used to wire the
8585/8595 to the truck battery. This cable needs to be ordered separately. This cable should be wired to a
filtered, fused (maximum 10A) accessory supply on the vehicle. On negative chassis vehicles, the positive
lead should be fused. On positive chassis vehicles, the negative lead should be fused. On floating chassis
vehicles, the positive and negative leads must be fused. Any additional wiring (minimum 18 gauge), connec-
tors or disconnects used should be rated for at least 90 VDC, 10 A.
When connecting PN 13985-301, ensure that the screen blanking wires (clearly labelled) and the power
wires (red/black leads) are reliably secured away from each other, or are separated with reliably secured
certified insulation. Minimum 2.8 mm distance, or 0.4mm distance through insulation is required for
the separation.
The red lead of the power cable attaches to the positive vehicle supply. The black lead connects to the neg-
ative supply – this should be connected to a proper terminal block and not to the vehicle body. The external
wire of the power adapter cable is connected to the ground lug of the 8585/8595 terminal connector bay
and to the vehicle chassis.
You have the option of connecting power before or after the ‘key’ switch. The 8585/8595 should not be
shut off by simply removing the power. If it is wired after the key switch, the operator must shut down the
8585/8595 using the Windows shutdown procedure before turning off the vehicle. If it is wired before the
key switch, then to avoid excessive drain on the vehicle battery, either the operator should shut it down
when the vehicle is to be left off for an extended period, or the ignition cable shutdown wire should be con-
nected and the 8585/8595 configured to shutdown automatically.
If an unfused power source must be used, a fuse assembly (PN 19440-300) and diode/choke assembly
(PN 30723-301A) must be added to the extension power cable (the fuse, diode/choke and instructions are
supplied with the cable). Use only a 10A slow blow UL approved fuse in the fuse assembly. The fuse assem-
bly must be located as close as practical to the DC supply, and shall connect to either the positive, or nega-
tive side of the DC supply, depending on the chassis grounding scheme. For floating chassis vehicles, an
additional 10 A slow blow UL approved fuse (fuse assembly PN 19440-300) should be installed on both
power supply lines.
To safely wire power to the 8585/8595, review these guidelines and follow the instructions that apply to
your needs:
• When connecting the cable (PN 13985-301) to the screen blanking cable (PN 1616303-001), the wire pair
on the 13985-301 labelled “screen blanking” connect to the screen blanking control device, which must
provide an isolated relay closure across the pair.
• When connecting the cable (PN 13985-301) to the ignition cable (PN 1616302-001), the wire pair
labelled “screen blanking” on the 13985-301 has a different function; the red wire must connect to a
DC+ voltage source switched on by the ignition, while the black wire may connect to DC- or be
taped off.
• Note that only the ignition function is supported by the UPS (models PS1110/PS1120), not the
screen blanking. If both screen blanking and ignition are to be used on the same 8585/8595,
contact Psion for details.
Contact Psion for details about the Pre-regulator, model number PS1320 and the Interrupted Power Supply
(UPS), model numbers PS1110 and PS1120 (freezer unit).
4.6.2 Position of the 8585 in the Vehicle
In the vehicle, the driver's field of view must be kept free.
If a keyboard and scanner are installed on the 8585, please plan sufficient space.
No part of the 8585 system may project beyond the vehicle.
4.6.3 Overview of the Assembly Steps
Before fastening the 8585 to the vehicle:
• The shutdown automation must be configured.
• The forklift must be prepared (connection to ignition, correct voltage, etc.).
We recommend the following installation sequence:
1. Fasten the bracket to the vehicle.
2. Install 8585 to the bracket.