Join Date: Nov 2004
Location: Puget Sound Area, Washington
To begin, this ballast is designed to run a PC compact lamp, not a T5 lamp. There's a very real risk that you'll blow either the lamp or the ballast or significantly shorten the life of one or the other (or both). Nevertheless, you can go ahead and try -- it might run anyway.
Each pair of pins on the PC Compact lamp roughly correspond to the pair of pins you'd see at each end of a T5 lamp -- so you should use that to figure out how to wire your setup. By the looks of it, pin 1 and 2 go to one end of the lamp, pin 3 and 4 to the other. However, I would not connect any of these wires together (as you propose to do), which brings us to the next issue.
You say you have shunted end-caps -- which means that both pins, within the end-cap, are connected (i.e., adding a jumper would be redundant). This is not what your rapid start ballast is expecting. You should use non-shunted end-caps. Shunted end-caps should only be used with instant start ballasts (such as the Workhorse) -- an instant start ballast will have a single wire going to each end of the bulb.