Thiết bị hội thảo truyền hình & âm thanh Polycom VSX8000 , VSX8000 ,

Bandwidth:				Maximum Data Rate IP and Serial/V.35:
:				Maximum Data Rate ISDN: Up to 2 Mbps Video Standards & Protocols:
:				H.263+ Annexes: F, I, J, L, N, T
:				H.263++ Annexes: W
:				H.264
:				ITU 60-fps full screen – Pro-Motion™ Frame Rates (Point-to-Point):
:				30 fps at 56 kbps up to 2 Mbps
:				60 fields per second up to 2 Mbps
Video Inputs: 4 Connectors:				1 x S-Video; Professional Y/C BNCs (main video camera) - 1 x DB15; PowerCam™ and PowerCam Plus power, PTZ control, IR, mic input
:				1 x S-Video; 4-pin mini DIN (second camera with PTZ control)
:				1 x S-Video; 4-pin mini DIN (VCR or DVD player)
:				1 x VGA (Content input from laptop)
Serial Data Port: 2 Connectors:				2 x DB9
:				Control port for custom integration with remote devices such as Crestron and AMX control systems
:				Integration with Polycom Vortex® Installed Voice Products
:				Communication port for transmission of serial data (i.e. medical devices) over ISDN calls
:				Auxiliary camera control
Video Outputs: 4 Connectors:				1 x S-Video; Professional Y/C BNCs (main display)
:				1 x S-Video; 4-pin mini DIN (second display)
:				1 x S-Video; 4-pin mini DIN (VCR or DVD player)
:				1 x VGA (Content display)
Video Formats:				NTSC/PAL
:				Graphics: XGA, SVGA, VGA
Content Video Resolution:				XGA (1024 x 768), SVGA (800 x 600), VGA (640 x 480) for Content on VGA displays
:				People video support for 4CIF and SIF on VGA Display
:				Up to 4CIF for Content on NTSC/PAL displays
Audio Standards & Protocols:				Polycom Siren 14 Stereo ready
:				14 kHz bandwidth with Siren™ 14 on IP, ISDN, and IP/ISDN mixed calls
:				7 kHz bandwidth with G.722, G.722.1
:				3.4 kHz bandwidth with G.711, G.728, G.729A
Audio Features:				Seamless integration with Polycom Vortex Installed Voice Products
:				Audio add-in using SoundStation VTX 1000™ conference phone
:				Audio add-in over ISDN
:				Audio add-in over POTS
:				Full-duplex digital audio
:				Instant Adaptation Echo Cancellation
:				Automatic Gain Control (AGC) – Voice activated
:				Automatic Noise Suppression (ANS)
:				Ability to turn off Echo Cancellation when external audio equipment is used
Network Features:				Integration with Cisco Systems' CallManager Version 4.0
:				Automatic IP/ISDN calling
:				Down speeding over IP and ISDN
:				Audio & Video Error Concealment over IP and ISDN, mixed calls
:				IP address conflict warning
:				Fast Connect IP for quick video connections
:				Maximum call length digital timer
:				Auto SPID detection and line number configuration
:				MGC Click&View™ for individual screen layouts
:				Polycom OneDial™ intelligent call management attempts call on preferred network (IP or ISDN)
:				Polycom PathNavigator™ support for easy call placement and network cost optimization
:				TCP/IP, DNS, WINS, DHCP, ARP, HTTP, FTP, Telnet
:				Basic SIP* (Session Initiation Protocol) implementation
:				Chair control through API command or Integrated Web Interface
:				Software Upgradeable Inverse Multiplexer (IMUX)
User Interface:				User-friendly graphical interface
:				Customizable home screen and colour themes
:				Kiosk mode with scrolling marquee
:				User-selectable camera icons and ring tones
:				Up to (99) user defined camera presets
:				Speed Dial List on home page
:				Persistent Preview (Far-site PIP) on all screens
:				Picture-In-Picture (PIP) (On/Off, Moveable)
:				Dual-Monitor Emulation
:				Numerical menu navigation (Similar to mobile phone)
:				Date, Time Server accessibility
:				Calendar and Conference scheduling
:				Alert Signal on home page
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