Page 8
Back Panel
The back panel features the USB communication ports, status light emitting diodes (LEDs), a
connector to drive a secondary set of status LEDs and a power supply connector.
Figure 5: Back Panel Ports
USB Ports
Communication to and from the host PC is via USB 2.0. The USB host interface is a standard
Type B connector. The reader does not draw any power from the host.
A built-in USB hub and two auxilliary USB 2.0 Type A connectors allow you to connect
additional USB peripherals such as a mouse, keyboard, etc. The two USB peripheral connectors
are capable of sup5V DC at a total of 500mA to the peripherals (e.g. 500mA to a single
peripheral, 250mA to each of two peripherals, etc.).
Status Indicator LED’s
The status LEDs are intended to assist a technician to install and debug the reader, and indicate
the reader status and the result of scanning a document. They are not visible by a user.
Table 1: Indicator LEDs
Ready (Green)
The reader is ready to scan a document (when connected to the host
application).
Busy (Amber)
The reader is scanning a document and processing the data.
OK (Green)
A known document type was presented and processing was successful.
Error (Red)
The document is of an unknown type or did not process properly.
