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.
4 OPERATION OF THE WHERECALL IV
The WhereCall IV is a wireless messaging device that is capable of transmitting simple
messages to the ZES Infrastructure. These messages can range from a call for parts for line
side material replenishment to a request for supervisor assistance. There are three modes of
operation:
• Button or CALL Tag Mode
• Messaging or SWITCH Tag Mode
• OFF Mode
The WhereCall IV is shipped in the “OFF” mode. There is also a battery change mode that
is used to condition the tag to for installation of replacement batteries.
When the WhereCall IV is on the OFF mode, the display shows
PWR OFF . To turn the
WhereCall IV on when it is in the OFF mode, press the button once and the tag will resume
operation in either the CALL mode or the SWITCH mode depending on the mode it was in
when the OFF mode was selected.