User's Manual

Chapter 7: Peripheral Devices & Accessories
The Port Replicator
200 Warrington Hand-Held Computer User Manual
7.9.7 The Port Replicator
The port replicator (Model# WA4005-G1) is an optional accessory that allows tethered
devices as well as mounted peripherals (e.g., bar code printers or weigh scales) to be at-
tached to the vehicle cradle. The replicator can be used with or without the cradle
power option.
The functionality of the Warrington tether port is replicated into RS-232 serial interfaces by
the port replicator. It provides the user with 3 DB9 serial interfaces as well as one Type B
USB port (for connecting a Host device).
7.10 Scanners And Imagers
The Warrington supports a 1D laser scanner (SE955) and a 1D imager (EV15) options to
address a variety of user application requirements. The scanner/imager installed in your unit
can be configured using the Scanner Settings dialog box in the Control Panel (see page 134)
and the Manage Triggers application (see page 105).
It is critical that you review the safety information in the Chapter 1: “Approvals & Safety
Summary” before proceeding.
7.10.1 Scanning Techniques
• Hold the scanner at an angle. Do not hold it perpendicular to the bar code.
• Do not hold the scanner directly over the bar code. In this position, light can reflect back
into the scanner’s exit window and prevent a successful decode.
• Scan the entire bar code. If you are using a 1D laser scanner, make certain that the scan
beam crosses every bar and space on the bar code, including the margins on either end
of the symbol.
• When using imaging scanners, do not move the scanner while decoding the bar code.
Movement blurs the image.
• Hold the scanner farther away for larger bar codes.
Preliminary Draft