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

4.5 Changing System Protocols

To change the WhereCall IV mode between ISO 24730, CCX, and dual mode, the WhereCall IV

must be in OFF mode and display PWR OFF . Press and hold the button for several seconds

until the display starts to cycle between these options…ISO MODE, CCX MODE, DUALMODE,

and CNG BATT.

To switch to ISO 24730 mode, keep the button pressed until the display is showing ISO MODE,

then release the button, then click the button again to activate the mode. This mode will disable

all CCX blinks and the WhereCall IV will only send ISO 24730 blinks. In ISO 24730 mode, the

decimal point in the lower right most corner of the LCD will flash.

To switch to CCX mode, keep the button pressed until the display is showing CCX MODE, then

release the button, then click the button again to activate the mode. This mode will disable all

ISO 24730 blinks and the WhereCall IV will only send CCX blinks. In CCX mode, the

apostrophe in the upper left most corner of the LCD will flash.

To switch to dual protocol mode, keep the button pressed until the display is showing

DUALMODE, then release the button, then click the button again to activate the mode. In this

mode, the WhereCall IV send both ISO 24730 and CCX blinks. In dual protocol mode, both

the decimal in the lower right most corner and the apostrophe in the upper left most corner of

the LCD will flash.

If the user has inadvertently released the button at the wrong time and the WhereCall IV is

displaying the wrong mode, do not click the button again. The tag will timeout and return to

OFF mode and the display will show PWR OFF . The user can now start the changing protocol

sequence again.