User manual

Chapter 4: 8580/8590 Installation
Wiring Vehicle Power to the 8580/8590
48 8580/8590 Vehicle-Mount Computer User Manual
4.4.1 Wiring Vehicle Power to the 8580/8590
A 1.8 meter (6 ft.) extension power cable (PN 13985–301) is available which should be used
to wire the 8580/8590 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), connectors 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 sep-
arated 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 con-
nects to the negative 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 8580/8590 terminal connector bay and to the vehicle chassis.
You have the option of connecting power before or after the ‘key’ switch. The 8580/8590
should not be shut off by simply removing the power. If it is wired after the key switch, the
operator must shut down the 8580/8590 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 connected and the
8580/8590 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, di-
ode/choke and instructions are supplied with the cable). Use only a 10A slow blow UL
approved fuse in the fuse assembly. The fuse assembly must be located as close as practical
to the DC supply, and shall connect to either the positive, or negative 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.
Warning: Applying a voltage above the input voltage rating or reversing polarity may
result in permanent damage to the 8580/8590 and will void the product
warranty.