User's Guide

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User Guide
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TFF-2220-00AA and TFF-2221-00AA User’s Guide D1436 Rev B
©2008 Zebra Enterprise Solutions. WhereCall IV and all product names and numbers are Zebra Enterprise Solutions trademarks. All other trademarks are the property of their respective owners.
8.2 WhereCall IV PLC Overview
This document describes how to mount and interface the WhereCall IV PLC to your equipment
via the external industrial connector.
The WhereCall IV PLC is a variation of the standard WhereCall IV. It allows the call tag to be
used with a remote switch in external equipment. The external equipment can “press the
button” to initiate a call. This enables the WhereCall IV PLC and the user equipment to operate
unattended and to send a call message via the ZES system.
For more information regarding the operation and installation of the
WhereCall IV PLC please refer to the WhereCall IV User Guide.
In this document the Terms WhereCall IV PLC and TFF-2221 are used interchangeably
and will have the same meaning.