Model 8656-XEU-AMC Scrambler
Scientific-Atlanta's Model 8656-XEUAMC Scrambler provides dynamic switched sync suppression, video and sync inversion, and high-speed encrypted data transmission to the 8600X Advanced Analog Home Communications Terminal (HCT). The Model 8656 Scrambler also provides in-band audio data transmission to Models 8600 and 8590 Home Terminals. The Model 8656-XEU-AMC Scrambler is upgradable to SoundProtect audio masking capability.
Description
The Model 8656 Scrambler provides dynamic switched sync suppression, video and sync inversion, and dropfield scrambling. These scrambling modes can be configured for any individual mode or a combination using up to ten pre-defined dynamic modes. The scrambler is compatible with all existing Scientific-Atlanta addressable and non-addressable home terminals. In addition, the scrambler is compatible in Jerrold, Zenith, Hamlin, Eagle, Tocom, and Pioneer scrambling systems. The scrambler transmits conditional access information to the 8600X advanced analog HCT using the vertical blanking interval (VBI) of the video channel. The 8600X HCT transactions are received by the scrambler at a rate of 153.6 kbps from the Model 8658 Headend Controller (HEC). The scrambler supports up to ten lines for VBI data transmission at a rate of 59 transactions per second on a single VBI line. This provides a total throughput of 590 transactions per second on a single channel. Descrambling information is also transmitted in the VBI. Descrambling transactions for the 8600X HCT are encrypted using a random seed generator and unique session keys. The scrambler transmits conditional access information to the Model 8600 and Model 8590 as AM pulses modulated on the audio carrier of various channels in the headend. The data are interleaved with descrambling information, providing a higher degree of security. The Model 8656 is used to store and transmit message data for the 8600X HCT and Model 8600 Home Terminal. In addition, the scrambler provides data delivery for the interactive viewing guide and virtual channels to the 8600X HCT. The unit is housed in a standard 19- inch rack adaptable chassis and fits any EIA-standard 24-inch rack.
Features
• Secures premium video and pay-per-view services with more than 50
scrambling modes
• Supports 8600X HCT(VBI) and Model 8600 home terminal (Audio) type data
transactions
• Supports 8600X HCT and Model 8600 home terminal messaging, as well as
interactive viewing guide and virtual channel data transmission for the 8600X
HCT with 512 kB memory.
• Video scrambling compatible with all new and existing Scientific-Atlanta
addressable and non-addressable descrambling systems
• Remote control via System Manager
• Front panel setup and calibration
• Upgradable to SoundProtect audio masking capability
S-A 8656-XEU-AMC Sc...
