Scientific Atlanta 8640HDC 用户手册

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Data Sheet 
 
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Cisco Explorer 8640HDC DVR with M-Card Interface 
The Cisco
®
 Explorer 8640HDC DVR with Multi-Stream CableCARD (M-Card
interface provides high quality video, audio, DVR, and two-way capabilities that cable 
operators have come to expect. The platform provides faster processing of applications 
while also supporting bandwidth management objectives. 
The 8640HDC becomes the multimedia service gateway for the home – sharing and managing 
video and audio experiences between the television and other home network devices. 
Figure 1.    Cisco Explorer 8640HDC DVR (image may vary from actual product and specification) 
 
Features  
Network Utilization Enhancements 
● 
1 GHz Tuning allows service providers to expand network bandwidth to provide additional 
services such as HD and VOD, VoIP video, and high speed data 
● 
MPEG-4 (H.264) Decoding supports compression technology that provides better video 
quality at about half the data rate of MPEG-2 
● 
DOCSIS
®
 2.0 provides increased upstream throughput for future advanced services and 
provides a path for future IP video services (optional software) 
● 
Digital-Only Tuning enables service providers to improve bandwidth efficiency and accelerate 
the transition to an all-digital network by migrating analog subscribers to digital services 
tru2way™ and Conventional Network Support 
● 
M-Card Interface uses a Multi-Stream CableCARD for separable security 
● 
Axiom™ DVR Middleware supports OpenCable™ tru2way (formerly OCAP™) applications 
such as Service Navigators, Games, and many other future applications (optional software) 
● 
DOCSIS Set-top Gateway (DSG) provides a powerful standard transport mechanism for 
command and control signaling between the set-top and service provider network (optional 
software) 
● 
SARA DVR Software on a set-top provides native navigator and user interface in a  
non-tru2way environment (optional software)