TANDBERG E5500, Инструкция по эксплуатации

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Equipment Description
Instruction Manual: evolution 5000 E5500 Mobile Contribution Encoder Page 4-17
ST.TM.E10033.3
4.8.2 RAS Scrambling Module S8489
The RAS Module (M2/EOM1/RAS) is used to scramble the services in a
transport stream so that unauthorised users are denied access. It uses
TANDBERG Television’s proprietary Remote Authorisation System (RAS 1)
which supports two methods of key entry: SNG Key mode or Fixed Link
operation.
In SNG Key mode, a seven digit key is entered via the front panel on the
Encoder. In Fixed Link mode, an 8 digit key is assigned by TANDBERG
Television and pre-programmed into the Encoder and Receiver. Scrambling
can be switched on and off under user control.
The input to the module is the Motherboard Multiplexer output via the
backplane. The output is presented on the backplane as well as three
dedicated ASI outputs. The backplane output is used when further
processing is to be performed on the scrambled transport stream.
Examples of the backplane output being used would be when a RAS
Module is used in conjunction with an Internal QPSK Module or an ATM
Network Interface Module. Three ASI outputs are provided, so that in
addition to the output, both monitor and redundancy connections can be
catered for.