Thor HD Video Encoder & DVB-S2 Modulator - Manual (Page 20)

THOR H-1SDI-DVB-S2
~ 17 ~
4.2.2 BISS:
The BISS scrambling function application needs to be matched with a BISS
descrambler.
The BISS scrambling supports two modes: “Mode 1” and “Mode E”. Select one
of the two modes in the drop down list.
4.2.2.1 Mode 1
Under Mode 1, the BISS scrambler applies scrambling by a fixed Control Word
(CW), derived from a clear SW (Session Word). In Mode 1, a fixed 12-character
SW is inserted in the scrambler. The 64-bit CW is derived from the SW
according to DVB-CSA specification .
Select Mode 1 in the drop-down menu, and then input the scrambler key. The
scrambler key consists of 12 characters from 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D,
E, and F. The downside device descrambler key equals SW Data on the BISS
scrambler side.
After inputting the scrambler key, press “Apply” to initial scrambling. A few