Setting the OPTION key:

1) With cab unpluged press and hold down SELECT LOCO key while plugging in the cab. The
cab will now enter its internal setup program. This is indicated by a flashing
status LED.

2) Press “4” to enter OPTION key setup mode. Notice the flashing of the LED
slows to indicating it’s ready to accept the new key value.

3) Enter a new value for the OPTION key from the table on the next page, followed
by the ENTER key. If you enter a number less than 64 or greater than 128 the
LED will flash rapidly indicating an error. If you get an error press SELECT
LOCO to clear the error and go back to step 1.