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Appendix C – Technical Specifications
Content Transmission
Bandwidth Configuration Options (set via Admin Web page)
• Default Average Transmit & Receive Bandwidth: 1,920 kbps
• Maximum Average Transmit Bandwidth Setting Range: 128 kbps - 1,920 kbps*
• Maximum Average Receive Bandwidth Setting Range: 128 kbps - 1,920 kbps
*Performance and scalability may vary depending on Bandwidth option selected. Refer
to Page 33 or Appendix A for more detail.
Maximum Bandwidth Requested in Unlimited Bandwidth Environment
• H.323 link to other QSX appliances or Polycom video systems: Up to 1 Mbps
• HTTP link to each Web viewer up to 1 Mbps
Other Bandwidth Configuration Options (set via Admin Web page)
• Bandwidth Sharing Mode for simultaneous transmission to each remote connection
• Time Sharing Mode for sequential transmission to each remote connection
• Load Balancing to distribute Web Viewers among multiple QSX’s in a Session.
Video & Graphics Standards
• H.263
• H.239
• JPEG for Web Viewer
IP Protocols
• TCP/IP
• ITU H.323
• http
Frame Rates
• Intelligently selects frame rate for best performance
• 3-8 fps to other QSX or VSX endpoints over H.323 connection
• Up to 1fps to Web Viewers over http connection
Network Interfaces Supported
• IP (LAN, DSL, cable modem via Ethernet)*
• Single 10/100 Ethernet port (10 Mbps/100Mbps/Auto)
*DSL and Cable Modem require DMZ configuration
Network Features
• Error Concealment
• TCP/IP, DNS, WINS, DHCP, ICMP, ARP, HTTP, FTP, Telnet
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