Anyone have sources for specifications on the interface between a home
satellite Receiver and the LNB in the feedhorn? I know of the polarity
select voltage, the 22KHz dual dual LNB select, and the baseband channel
frequencies, but would like ideas of types of current supplied / needed by
the systems, etc.

Also specifications on the serial interface on the Receiver, particularly
the protocols and uses.

Note - a product, not a theft of service inquiry.

Tom