Possible Alarms; Operation Of Biss; Setting A Key For Transmission; Setting An Encrypted Session Word For Transmission - Newtec M6100 User Manual

Features Descriptions

12.11.6 Possible Alarms

Alarm
BISS PAT Error
BISS PMT Error
BISS CAT Error
BISS Program
Already Scrambled
BISS CA-Descriptor
found on Input
BISS Scrambling
Error

12.11.7 Operation of BISS

12.11.7.1 Setting a Key for Transmission

Starting point: the scrambler sends clear data to the descrambler. Both have their scrambling mode
set to "Standard", but scrambling is disabled.
Steps:
• The Session Word is entered in the descrambler (odd key);
• Enable scrambling on the descrambler;
• The Session Word is entered in the scrambler (odd key);
• Enable Scrambling on the scrambler (select ON).

12.11.7.2 Setting an Encrypted Session Word for Transmission

Starting Point: Scrambling is not enabled. Clear TS is send towards the receiver.
Steps:
If Injected ID is used:
• Enter the Injected Id in the device, if it is not yet done (normally, the injected ID shall be
defined earlier)
• Select the encryption mode of your choice:
• Injected Id
• Buried Id
• Enter the encrypted odd session word in the decryptor.
• The odd session word is computed by the decryptor and available for use.
Description
When the CRC of the PAT is not valid then this alarm is raised.
BISS PMT Error
When the CRC of the CAT is not valid then this alarm is raised.
If a packet of a program to be scrambled is already scrambled (indicated
by the scrambling bits), then this alarm is raised. The packet shall not be
scrambled in that case, but scrambling continues for other packets.
If a PMT already contains a CA descriptor then this alarm is raised.
This alarm is raised due to errors happening in the scrambling core
(FPGA).
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Confidentiality: Unrestricted
M6100 Broadcast Satellite Modulator
V1.4
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