Comtech EF Data Vipersat 564L Guía de usuario Pagina 18

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Product Description
1-4 Vipersat CDD-56X Series User Guide
• Data Rate Range from 16 kbps up to 9.98 Mbps, depending on modulation
and FEC used (with FAST feature upgrade)
• Turbo Product Coding (TPC) FEC
• Fast Acquisition Demodulator
• Simultaneous STDMA (burst) and dSCPC modes (configurable on a per
demodulator basis)
• LNB Support: 10 MHz Reference and LNB Power
• N:M Hub Modem Redundancy Schemes
Router Features
• Fully Integrated Network Management using Vipersat Management
System (VMS)
• Single Hop On Demand (SHOD) functions
• 10/100BaseT Ethernet LAN/WAN Interface
• Static IP Routing for Unicast or Multicast
• Header Decompression
• Payload Decompression
• 3xDES Decryption
Network and Bandwidth Management
A Vipersat-powered network solution integrates this advanced demodulator/
router with the powerful network management tool, the Vipersat Management
System (VMS). The VMS provides for traditional monitor and control of the
CDM-570/570L modems and the CDD-56X demodulators, but more than just
an M&C package, the VMS offers unique bandwidth management that is ideal
for IP-switched networks. Short data transfers are typically executed using a
shared Selective Time Division Multiple Access (STDMA) channel, and when
large amounts of data transfer, voice, and/or video communications are needed,
these units can be automatically switched to a dedicated SCPC channel.
Dynamic SCPC (dSCPC)
The VMS provides for dynamic bandwidth allocation while in SCPC mode,
automatically altering the bandwidth based on traffic conditions. This effec-
tively enables the network to better handle connection-oriented applications and
reduce network congestion, jitter, and latency.
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