I have four pelco spectra dome III... I have been attempting to locate a solution via Google... However, I see no specific answer for my application. I am using a PC DVR with typical Serial port RS485/Rs422 converter to ship data via UTP... What I need is a way to convert that Pelco P or Pelco D baud rate and protocol into a coaxitron application for the above cameras. So many items are sold but I am concerned that I will get the incorrect unit... Has someone done this before?