Your ski is the last year of the old style MPEM, and also was a dess capeable or/and a programable module, with 7 programable slots in the ROM. meaning non-dess, or
you could program into the module SEVEN different key embedded codes with a programmer, IF you chose to do so. If you were to buy a new 278000822 mpem, the
third wire required for a dess post is capped. You can use a standard two wire post
if you desire non-dess. Another 720 MPEM is a 278000423 non-dess module. A two
wire non-dess safety lanyard post is used with that module, and that will also run
your accessories electronics as well. Same E-box. Bills86e