Chapter 7: Peripheral Devices & Accessories
USB And Serial Connections
Ikôn Rugged PDA (Windows Mobile 6.1) User Manual
273
•
The Powered Vehicle Cradle draws no more than 1.9 A @ 12 VDC or 0.95 A @
24 VDC. Any additional wiring, connectors or disconnects used should be rated for at
least 4A. The Powered Vehicle Cradle and peripherals can be used with both negative
ground systems when using the Power Extension cable. Peripheral wiring should be
closely examined to avoid ground loops in positive ground systems.
•
There is the option of connecting power to the cradle before or after the ‘key’ switch.
- It is preferable to wire
after
the key switch. In this configuration, when the key is
turned ON, the vehicle will power the cradle and docked Ikôn, charging the internal
battery when needed. When the vehicle ignition is OFF, the Ikôn docked in the cradle
will run on its internal battery.
- However, if the operator switches the key off repeatedly for long periods during a
shift, it may make more sense to wire the vehicle cradle before the switch. In this
case, the Ikôn will always operate from vehicle power and that power will charge the
battery when needed.
- Keep in mind that the Ikôn will continue to operate with or without vehicle power as
long as the internal battery has sufficient charge.
7.10.4 USB And Serial Connections
The Powered Vehicle Cradle full configuration consists of two serial DE-9M ports and one
USB Type A port located at the base of the product. These are COM and USB ports that
allow the communication of serial and USB devices with the Ikôn. These ports are:
•
One powered USB A (Host).
•
One full Serial port.
•
One Serial port that provides power over pin 9. This port is located nearest the front
LED and is marked as COM 6 in Figure 7.14.
Important: Depending on the configuration, the CH1005A Powered Vehicle Cradle
has up to three data connectors and one power connector.