
TWIN A/D PROCESSOR 10
4. Product description
4.1. Introduction
The TWIN A/D PROCESSOR contains two processors,
herein known as module A and module B. Each
one of them can be used independently either as
a channel converter (output channel dierent of
input channel) or as an amplier (output channel
equal to input channel).
When used as a converter, it allows to select any
channel in the VHF or UHF band (46-862MHz) and
translate it in frequency to any position within
these bands.
Both modules A and B feature its own Up-
converter, thus enabling to allocate independently
the two output channels to any position within the
TV band.
The parameters are selected by the programmer
ref. 7234, which is connected to the front of the
unit.
By using the universal programmer, both
modules can be programmed with the operating
parameters required by the premises: input and
output frequencies, output levels and bandwidth,
mainly.
Both modules A and B share the same input port
(loop-through).
The input loop-through allows the input signal be
available to a number of units interconnected. At
the same time it allows to power a preamplier
through the signal input cable (12 / 24 Vdc).
If a shortcircuit occurs at the input port, a LED on
the front panel of the unit will start to ash and the
input power will be switched-o. The programmed
voltage at the input will be reset once repaired the
shortcircuit.
It features also an input RF connector and an
output RF connector in loop-through in order to
mix the channels for subsequent amplication.