Motorola DS3478 User Manual

Getting Started

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If using an external power supply, insert the power cable into the power port on the back of the digital scanner 
cradle, and connect the power supply to an approved AC supply (see the cradle’s Quick Reference Guide for 
more information).

The cradle receives power from one of two sources:

An external power supply.

When connected to a powered host through a host cable that supplies power.

The cradle detects whether the host or an external supply is supplying power. It always draws power from the 
external supply when available, regardless of the presence of power from a host.

When connecting the cradle to a powered host, the host can sometimes power the cradle rather than an external 
power supply. Consider the following when powering from a host:

The digital scanner charges at a slower rate than when charging from an external power supply.

The cradle can charge a digital scanner only in single point mode. An external power supply is required to 
charge a digital scanner in multipoint mode. 

A powered USB port provides enough power to the cradle for charging.

Not all hosts provide enough power to the cradle for charging. For these hosts, connect an external power 
supply.

For more information on single and multipoint operation, see 

Host Port

Power Port

Disconnect the power supply before changing host cables, or the digital scanner may not recognize the 
new host.

Different hosts require different cables. The connectors illustrated in each host chapter are examples only. 
The connectors may be different from those illustrated, but the steps to connect the digital scanner are the 
same. 

The radio link functions normally when the cradle draws power from a host.