Psion Teklogix Vehicle-Mount Computer 8590 - Manual (Page 52)

Chapter 2: Basic Checkout
Connecting External Devices
26 8580/8590 Vehicle-Mount Computer User Manual
2.10 Connecting External Devices
Warning: The 8580/8590 must be disconnected from the power supply:
- before external devices (e.g., scanner, keyboard) can be connected
or disconnected, and
- before the 8580/8590 can be connected to a network.
All connections and interfaces on the 8580/8590 are located on the
underside of the unit.
Important: Before connecting or disconnecting peripheral devices (excep-
tion: USB devices), the 8580/8590 must be disconnected from the
power supply! If the 8580/8590 is equipped with an optional UPS
battery, only open the device after the power LED has gone out.
Otherwise, this could seriously damage both the 8580/8590 and
the connected devices!
Make sure that external peripheral devices with their own power
supply are switched on at the same time as the 8580/8590 or after
you start the 8580/8590. If this is not possible, please ensure that
the 8580/8590 is adequately protected from power leakage caused
by an external device.
2.10.1 Powering Down The 8580/8590
Always shut down the 8580/8590 as follows:
1. If your 8580/8590 has a DC power pack and automatic shutdown soft-
ware, power down the device using the ignition input.
2. If your device has an AC power pack and automatic shutdown soft-
ware, power it down using the power button.
3. Remove the cable cover.
4. Disconnect the device from the DC or AC supply voltage (pull the
plug).
The 8580/8590 is only shut down once the power LED has gone out.