User's Guide

 22
MU Status Lights
You’ll nd the two MU status lights on the top of the tool, above
the MU buttons. (See General Layout on page 9).
To view the MU status lights, hold the tool so that the charger
socket points away from you.
(The same lights are used when you are in RAM/EMMO mode,
but are labelled the other-way-round. (See
RAM Status Lights
on page 23).
The MU OK light conrms that the MU or TU has not been
tampered:
Button Colour Meaning
GET
STATUS
Green MU/TU OK, no tamper
Flashing Green Tool connecting to MU/TU
The meaning of the MU FAULT light changes depending on
the button that you have just pressed.
(See MU Buttons on page 21).
Button Colour Meaning
GET
STATUS
Red Tool–to–MU/TU link fault
Flashing Red MU/TU tampered
Amber AC power not connected
Flashing Amber Low battery
Flashing Red/Amber MU/TU radio fault
MU
OFF
Red Tool–to–MU/TU link fault
Flashing Red AC power still connected
Flashing Amber Modem in use
Flashing Red/Amber MU/TU fault
FO RCE
DIAL
Red Tool–to–MU/TU link fault
OK
MU
FAULT
EMMO RAM