User manual

Chapter 2: Basic Checkout
External Connectors
8580/8590 Vehicle-Mount Computer User Manual 25
2.8.3.1 DC Voltage Supply
Version: Phoenix Combicon, 3-pin.
Figure 2.4 DC Power Supply Connector – Exterior View
Explanation:
‘Ignition on’ means that a control signal must be routed to this connection (e.g., ignition of a
vehicle) that matches the supply voltage level and is able to supply at least 2 W to the
8580/8590. The signal reference is DC-.
2.8.3.2 8580/8590 Adaptor Cables
Two types of adaptor cables are available for use with the 8580/90. An extension power
cable (PN 13985–301) is available as an accessory. The power extension cable is connected
to the vehicle on one side and the adaptor cable on the other side. All cables can be used
with every voltage. Psion offers an ‘ignition’ and a ‘screen blanking’ (display-off) adaptor
cable. The external wire of the adapter cable must be connected to the ground lug of the ter-
minal and to the vehicle chassis.
The ‘ignition’ adaptor cable is connected to the power input of the 8580/8590 only; the
‘screen blanking’ cable must be connected to the power input and COM1 or COM2. If you
require both the ‘screen blanking and the ‘ignition’ options, you will need to contact Psion
personnel for assistance.
Note: Refer to “Wiring Vehicle Power to the 8580/8590” on page 48 for details about
‘ignition’ and ‘screen blanking’ installation instructions.
If you require Pre-Regulator or UPS installation instructions, please contact
Psion personnel for assistance.