I have purchased a used a Philips LTC 0809 AutoDome camera.


I was able to power it on, and it works fine.
The pan/tilt/zoom +other options are controlled via
Allegiant Biphase Protocol
some kind of serial protocol, the connections are Shield, BP+, BP-
Does anybody know what this protocol is, how can i create or emulate it?

Thnank you,

Boris.

Inside this cameras is connector RS 232, question is, if you need in this case Biphase convertor...


For communication true 2nd one input ("BiPhase input") you need convertor RS232 -> RS485 and expensive RS485 -> convertor.