2.Connect the main cable. The main cable connects the mouse cable (needed to use the remote control as a mouse) and serial cable (needed to use the ELP Link II software) to the projector.
MAC serial 
cable
MAC mouse cable
main cable
a.Connect the small end of the main cable to the projector’s Mouse/Com 1 port. (Use the Mouse/Com 2 port if you are connecting a second computer.)
b.Connect the MAC mouse cable to the mouse terminal on the other end of the main cable.
c.Connect the mouse connector of the MAC mouse cable to the mouse port on the back of the PowerBook.
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