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