Me - I'm looking for the RS-232 manual for the new projector you guys have. I want to confirm it's looking for the same codes as the older models because I am having issue talking to this one and I'm not sure if it's the wiring.
Vendor Tech Support - Oh your controlling this via E*tr*n or Crestron
Me - Yup a Crestron
Vendor Tech Support - Ok well we don't really keep or have that documentation, what your going to have to do is call Crestron and they will tell you what you need to know. Just search Crestron to us control module.
*Sound of my head imploding from me trying not to loose it on this guy*
Me - .... *sigh*
*hangs up phone*
