Motorola LS3478 - Manual (Page 23)

Getting Started 1 - 5
5. If using an external power supply, insert the power cable into the power port on the back of the scanner cradle,
and connect the power supply to an approved AC supply (see the cradle’s Quick Reference Guide for more
information).
Figure 1-4 Connecting the Cables to the Cradle
Supplying Power to the Cradle
The cradle receives power from one of two sources:
• An external power supply.
• When connected to the host through a host cable that supplies power.
The cradle detects whether the host or the external supply is supplying power. It always draws power from the
external supply when available, regardless of the presence of power from a host.
Using the USB Interface to Supply Power
When the cradle is connected to the host via the USB interface, it can be powered by the USB port instead of an
external power supply. Powering from a USB host limits charging as follows:
• The scanner charges at a slower rate than when charging from an external power supply.
• The cradle can charge a scanner only in single point mode. An external power supply is required to charge a
scanner in multipoint mode.
For more information on single and multipoint operation, see Pairing on page 1-9 .
Host Port Power Port
NOTE Disconnect the power supply before changing host cables, or the scanner may not recognize the new
host.
Different cables are required for different hosts. The connectors illustrated in each host chapter are
examples only. The connectors may be different from those illustrated, but the steps to connect the
scanner remain the same.
NOTE The radio link functions normally when the cradle draws power from a USB host.