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Subscriber Networks
Explorer 3250HD™
High-Definition Interactive Set-Top
Description
Scientific-Atlanta’s Explorer
Interactive Set-Top merges high-definition video capability
and broadband digital video services to deliver a broad
range of entertainment, information, and communications
services.
The 3250HD decodes all 18 ATSC digital video formats,
including the 6 high-definition (HD) digital formats for
HDTV. All standard-definition digital formats and all analog video services
are decoded as well. This comprehensive level of decoding capability
in one set-top box enables cable service providers to quickly scale
HDTV video services for both analog and digital consumers.
The 3250HD can output video to the HDTV display in four resolutions:
480i, 480p, 720p, or 1080i. These resolutions, or scan rates, allow consumers
to select the scan rate best suited for their HDTV set. Consumers can
stretch and zoom the video picture to maximize its viewable area on the HDTV display.
3250HD™ High-Definition
For added connectivity, the 3250HD offers optional loop-through that provides
a set of component HDTV inputs, a composite video input, and both analog audio
and optical digital audio inputs. A consumer with limited inputs on their HDTV
can use the loop-through connectivity feature on the 3250HD to connect additional
electronic devices.
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Features
166 MIPS Processor
Integrated DAVIC Cable Modem
8 MB Flash Memory, or 16 MB available as an option
16 MB Applications DRAM, or 32 MB available as an option
16 MB Media DRAM
4 KB NVM
Analog Component HDTV Outputs
Composite Audio/Video Outputs
S-Video Output
Digital Audio Outputs (RCA and Optical)
Front Panel USB Port
Ability to Process All Analog and Digital Services
IR Port for VCR Commander™ Service
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Explorer 3250HD High-Definition Interactive Set-Top
Description, continued
To meet the demands of existing and future network configurations, the
3250HD offers power, capacity, and compatibility. The integrated internal
DAVIC cable modem allows the 3250HD to communicate instantly with the
cable headend to promote a broad range of interactive entertainment,
information, and communications services. Over 40 MB of application and
program memory, along with the 166 MHz RISC microprocessor, manage
multiple program tasks and applications with speed and power. The USB port
offers fast interconnectivity to consumer peripherals.
Optional Features
16 MB Flash Memory
32 MB Applications DRAM
DVI 1.0 Digital HDTV Output
IEEE 1394 Digital Outputs
Loop-Through Connections for Component HDTV, Composite Video, and
Analog and Digital Audio
IR Blaster Cable
IR Extender Cable
RF Bypass
Universal AllTouch
or AT2300
3250HD rear panel showing optional loop-through connections
3250HD rear panel showing optional IEEE 1394 digital outputs
®
Remote Control: AT8400, AT8450, *AT8550, AT2400,
The 3250HD makes it easy to maximize
the screen image for non-HD channels.
For a widescreen HDTV set, simply
click “stretch” and then “zoom” from
the Quick Settings menu on the
3250HD set-top.
Taping an HD broadcast to an analog VCR is seamless with the 3250HD.
The set-top simultaneously displays the HD image and downconverts it to SD
(standard definition) through the NTSC outputs.
The optional VCR Commander Service integrates the interactive TV program
guide with the VCR so that consumers simply point-and-click to setup and
record programs.
To maximize the screen image for a
standard 4:3 HDTV set, simply change
the scan rate to 480i using the Quick
Settings menu on the 3250HD set-top.
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Explorer 3250HD High-Definition Interactive Set-Top
Specifications
Feature Benefits
Analog Component HDTV Outputs Provides YPbPr outputs for quick and easy connection to most HDTV sets
Dual Audio Outputs with Composite
Video Output
DAVIC Reverse Path Data
Transmitter
Enables cable service provider to offer two-way services such as Internet
MPEG-2 MP@HL Digital Video Allows decompression and presentation of audio and video
Decompression Delivers video resolutions up to 1920 x 1080
Dolby Digital Audio and MPEG-1
Audio Support
PowerKEY® Conditional Access
System
PowerTV® Operating System with
HTML Client Engine
Allows upgrades using a network download
Enhanced Graphics Engine Displays up to 65,000 colors simultaneously
Enables high-resolution 640 x 480 IPG graphics while simultaneously
Automatic Scaling of MPEG-2 Video
for IPG Window
Allows simultaneous connection to the audio inputs on the HDTV as well as
the audio and video inputs on a VCR
Allows IP-based, real-time two-way communication between the 3250HD
and the headend
browsing, video-on-demand (VOD), subscription VOD (SVOD), e-mail, and
real-time chat
Supports leading digital audio standards
Provides digital security using an RSA encryption algorithm that
mathematically matches pairs of keys
Offers stable operating system and open Application Programming
Interfaces (APIs) to support native applications and third-party middleware
applications
scaling MPEG-2 video
Scales MPEG-2 video for optimal viewing in
the IPG window regardless of whether the
subscriber is watching an HD or SD channel
on either a widescreen or standard 4:3 TV
Powerful 32-bit RISC Processors Features a 166 MHz (166 MIPs) processor to perform tasks and applications
quickly
Over 40 MB Memory 8 MB Flash, or 16 MB available as an option
16 MB Applications DRAM, or 32 MB available as an option
16 MB Media DRAM
4 KB NVM
64 and 256 ITU J.83 Annex B QAM
Supports open standards for QAM delivery and demodulation
Support
Analog and Digital Service Tuner Allows both analog and MPEG-2 digital channels to be tuned and displayed
DAVIC Compliant Integrated Cable
Provides a high-speed data forward path to the 3250HD
Modem
Both Internal Security
Microprocessor and Smart Card Slot
Macrovision Copy Protection
Support
Provide hardware-assisted conditional access options with capability to
upgrade the security, if ever needed
Activation allows cable operators to add another layer of copy protection
software, called Macrovision, that restricts subscribers from copying
protected transmissions such as VOD and SVOD to the analog composite
outputs
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Explorer 3250HD High-Definition Interactive Set-Top
Specifications, continued
Feature Benefits
Universal Serial Bus (USB) Interface Front panel USB port allows easy interconnection with home consumer
devices such as USB keyboards
BTSC/SAP Decoder Provides stereo sound on analog channels through the baseband left and
right outputs
S/PDIF Digital Audio Interface Supports interconnection with surround sound receivers using coaxial and
optical type connectors
Integrated VCR Commander Service Automates the recording of selected video programs; requires IR Blaster
Cable
Provision for Name Branding Allows you to brand the 3250HD with your company name and logo
Optional DVI 1.0 Digital HDTV
Output with Support for HDCP
Optional DVI 1.0 port with HDCP (High-Bandwidth Digital Content
Protection) supports digital connection to an HDTV set supporting the DVI
interface
HDCP provides a copy protection interface between the 3250HD and HDTV
set
Optional Dual IEEE 1394 Digital
Outputs with DTCP Copy Protection
Optional Analog Component HDTV
Inputs
Optional RF Bypass Allows the video signal to internally bypass the 3250HD to an SD input on
Optional RGB Adapter Converts the video from the YPbPr output into an RGB format with
Optional dual IEEE 1394 outputs with DTCP (Digital Transmission Content
Protection) provide a 400-Mbps digital interconnection to a 1394-equipped
HDTV
The 1394 ports provide a copy protection interface between the 3250HD
and the connected consumer device
Provides YPbPr inputs, composite video input, and digital and analog audio
loop-through for quick and easy connection to a DVD player
the HDTV set
horizontal and vertical sync for HDTVs requiring the RGB input signal
Ordering Information
Contact your Sales Representative for product availability in your area.
Part Number Description
4000768
4001332
4004367
4005726
4006584
Explorer 3250HD High-Definition Set-Top (8 MB Flash / 16 MB DRAM Memory)
with Optional DVI 1.0 Digital HDTV Output
Explorer 3250HD High-Definition Set-Top (8 MB Flash / 16 MB DRAM Memory)
with Optional DVI 1.0 Digital HDTV and Optional IEEE 1394 Digital Outputs
Explorer 3250HD High-Definition Set-Top (16 MB Flash / 32 MB DRAM
Memory) with DVI 1.0 Digital HDTV Output
Explorer 3250HD High-Definition Set-Top (16 MB Flash / 32 MB DRAM
Memory) with DVI 1.0 Digital HDTV and Optional IEEE 1394 Digital Outputs
Explorer 3250HD High-Definition Set-Top (16 MB Flash / 32 MB DRAM
Memory) with DVI 1.0 Digital HDTV Output and Analog Component Video and
Audio Loop-Through Inputs
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Explorer 3250HD High-Definition Interactive Set-Top
Ordering Information, continued
Description Product Photo Part Number
Optional IR Blaster Cable (8 ft)
Optional IR Extender Cable
Optional RF Bypass
Optional RGB Adapter, sold in
packages of five (cables sold
separately)
RGB Adapter Cable with RCA-toRCA Connectors (8 ft)
RGB Adapter Cable with RCA-toVGA Connectors (8 ft)
RGB Adapter Cable with RCA-toBNC Connectors (8 ft)
735994
1001807 (12 ft)
4006725 (25 ft)
544345
749790
749976
749978
749977
Spare YPbPr and Audio Left/Right
Cable Kit (10 ft)
AllTouch, Explorer, PowerKEY, PowerTV, Scientific-Atlanta, and the Scientific-Atlanta logo are registered trademarks of
Scientific-Atlanta, Inc.
3250HD and VCR Commander are trademarks of Scientific-Atlanta Inc.
Dolby is a registered trademark of Dolby Laboratories.
Macrovision is a registered trademark of Macrovision Corp.
All other trademarks shown are trademarks of their respective owners.
Specifications and product availability are subject to change without notice.
2004 Scientific-Atlanta, Inc. All rights reserved.
Scientific-Atlanta, Inc.
1-800-722-2009 or 770-236-6900 Part Number 4005304 Rev B
www.scientificatlanta.com August 2004
1000944
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