The CABPAS3 and CABPAS4 cables look identical, however the CABPAS3 cable is wired to work with a reverse polarity LED cable. It was necessary to make two different versions because the LED cables that the manufacturer provided with our PASILL3 and PASILL4 were not wired in a consistent manner. Some were wired with normal polarity and others were wired with reverse polarity. When the polar scopes were originally shipped to customers, we provided the correct cable to match your LED cable. Please refer to the Losmandy Polar Scope Polarity Test Instructions to help you determine which cable you have. If you need a replacement cable for your PASILL3 or PASILL4 Polar Alignment Scope, there are several options to consider.
If you plan to use the original battery pack that came with your polar scope and your polar scope has reverse polarity: You will need the CABPAS3.
CABPAS3 - Cable for Polar Alignment Scopes with reverse polarity LED - for PASILL3 and some PASILL4. Plugs directly into reticle output on mount (part #E0187 required for use with 800 mounts).