Scopus CODICO IRD-2600 - Descrambling

User Manual
Chapter 1. Overview
Page 1-6 P/N 2349-72784-00
Low Speed Data
The IRD-2600 and IRD-2800 enable Low Speed Data (LSD) transfer rates up to 115.2 Kbps
over a serial RS-232 port. The LSD interface supports filtering of the data encapsulated in
PES packets (stream types “0xBD”-private_stream_1 and “0xBF”-private_stream_2). In
addition, data filtering level can be according DVB Asynchronous Data streaming (EN 301
192) which includes additional 3 bytes of header information in front of the data information.
The following filtering levels are provided:
• Entire Transport Packet
• Transport Payload (184 bytes if no adaptation field, else adaptation is also stripped).
• PES payload (PES header stripped).
• DVB streaming (PES header and 3 byte pes_data_packet header stripped).
High Speed Data
a. The IRD-2600 and IRD-2800 enable High Speed Data (HSD) transfer rates up to 20
Mbps over a balanced RS-422 port. The high-speed transfer rates are limited by the
maximum rate supported by the RS-422 interface and cable lengths.
b. IRD HSD rates should be set slightly higher than those on the encoder (5% higher).
Optimal rate is best determined by trial and error. Too low a rate yields increased bit
errors. Conversely, too high a rate yields a stream that is too bursty. This is not a
problem if the target equipment (usually a PC) has a large enough buffer to compensate
for incidental burst size. To adapt the IRD-2600 and IRD-2800 to work with a variety of
encoders, bit-order can be reversed.
c. The following packetizing methods of data are provided:
• Entire Transport Packet
• Transport Payload (184 bytes if no adaptation field, else adaptation is also stripped).
• PES payload (PES header stripped).
1.1.2.5. Descrambling
The IRD-2600 and IRD-2800 are equipped with internal DVB descrambler and two
independent DVB-CI Common Interface slots.
The internal DVB Descrambler is usable for:
• Scopus CAS-5000 Encrytion system (CODICrypt
®
).
• DSNG-CA (BISS) fixed Key Encryption system and BISS-E.
The DVB-CI deciphers encrypted signals from a DVB signal source, by means of an
authorized Smart Card and a CA-specific CAM (Conditional Access Module).
The encryption standards supported by the IRD-2600 and IRD-2800 are:
• CA Method: Multicrypt, Simulcrypt
• CAS: Irdeto
®
, Viaccess
®
, Cryptoworks
®
, Conax
®
, Aston
®
, Nagravision
®
, On Digital
®
,
CODICrypt
®
, BetaCrypt
®
, NDS VideoGuard
®
.