GSS PCT2T 8000, Руководство по сборке, Страница: 6 / 43

- 6 - PCT2T 8000
Connections:
RF inputs: .............................................................................. 2 F sockets
RF output: ........................................................................... 1 IEC socket
Connection strip (10-pin): ..................for supply voltages and control circuits
RS-232 socket: ..................................... serial interface for software update
Common Interface: ......................2 (several channels can be descrambled).
Remote maintenance
Remotely controllable (via PSW 1000*): ..............................................yes
Remote update (via BEflash*): .............................................................yes
(* and a corresponding management unit)
2.4 d
esCriPtion
The twin transmodulator cassette is a converter, which converts signals modu-
lated according to DVB-C/C2/T/T2 standard into two COFDM modulated sig-
nals for feeding into a cable network. The cassette has two digital RF inputs and
one RF output.
Two common interfaces are present to descramble scrambled channels.
b
loCk diagr a m
Tuner " A " IN " A "
IN " B "
RF OUT
Tuner "
B
"
TPS
TPS
CA-Modul
CA module
CA-Modul
CA module
Modulator
" A "
Modulator
"
B
"
Combiner
g
ener al
The cassette is equipped with two channel strips (" A " and " B "). Using ad-
equate CA modules scrambled channels can be descrambled via tuner " A "
and " B ".
LEDs provide an indication of the input signal quality based on their colour
and indicate if the respective channel strip is switched on (LED illuminates) or
off (see Fig. on page 11).