GSS PSDP 6200, Руководство по сборке

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Connections
SAT inputs: 2 F sockets
HF output: 1 IEC socket
Connection strip (10-pin): for supply voltages and control circuits
RS 232 socket: serial interface for software update
Conditional access: 1 (2 channels can be decoded)
2.4 Description
The twin transmodulator cassette is a QPSK-converter, which converts all sta-
tions modulated according to DVB-S and QPSK standard into two PAL-modulated
cable signals. The cassette has two digital SAT IF inputs and an HF output. It is
equipped with two channel strips. Each channel strip consists of a digital tuner,
a digital signal preparation unit and a modulator. The cassette‘s channel strips
are indicated by “
Bx …A
“ or “
Bx …B
” in the control unit display.
The channel strip “ A ” can decode encoded channels via a corresponding CA
module. Depending on the CA module and the smart card, two channels can
be decoded simultaneously with one CA module, with the second one supplied
via channel strip “
B
”. Using the integrated time control you can select alternate
channels. The control of the cassette takes place via the control unit of the head-
end station.
Two LEDs provide an indication of the SAT IF input signal quality based on their
colour. Additionally the quality of the transport stream received is displayed
(“
CN… ”). If the data of channel strip ” A ” are used in channel strip ” B ” the status
LED of channel strip ”
B
” is switched off.
The prepared input signals reach the HF output collector of the head-end station
via the HF output socket. The common output level of the channel strips can be
set at the HF output collector of the head-end station.
When the head-end station is switched on, the two-line LC display briefly shows
the software version of the control unit. To operate this cassette the software
version of the control unit must be “
V 40
” or higher. You can find the current
operating software for the control unit and the cassette, the software “ BE-Flash ”
and the current assembly instructions on the website “
www.gss.de
”.
The cassette is designed for use in the following head-end stations:
– PSU
12
– PSU 8
– PGT 8