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.
Connector (used with WhereCall IV PLC)
Mating Connector Waterproof, 4 pin, mates with Turck RS-4.41T-X (where X is the
cable length) or equivalent
Display Characteristics
Number of
Characers
8
Format 14-Segment with apostrophe and decimal for each character
Function Check previous page
Digit Size .28 inch [7 mm] high
Back Lit No
Status Word
Length 4 bits
Battery low bit Bit 0 (---l)
0 = battery is OK
l = low battery
CALL mode
Button Push or
SWITCH mode =
“ON” state
Bit 1 (--1-)
0 = blink is not a switch blink, but a keep alive blink
1 = blink is CALL blink or SWITCH = ON blink
SWITCH mode =
“OFF” state
Bit 2 (-1--)
0 = blink is not a switch blink, but a keep alive blink
1 = blink is SWITCH = OFF blink