The CDD-564, CDD-564L and CDD-562L are integrated IP demodulators that receive 2 or 4 independent 70/140 MHz or L-Band channels (depending on model) and combine the output into a single 10/100Base-T Ethernet port for transmission onto the LAN. The demodulators and the integrated IP Module are housed in a 1RU chassis. The demodulators are designed to operate with Comtech EF Data’s IP-enabled products including modems and Performance Enhancement Proxies. 

 

FEATURES FOR EACH DEMODULATOR

• CDD-564: 50 to 90 or 100 to 180 MHz IF range
• CDD-564L: 950 to 1950 MHz each demodulator
• CDD-562L: 950 to 1950 MHz
• 16 kbps to 9.98 Mbps data rate
• Fast acquisition demodulator
• BPSK, QPSK demodulation (8-PSK/8-QAM, 16-QAM optional)
• 2nd Generation Turbo Product Coding (TPC) forward error correction
• LNB support: 10 MHz reference and LNB power
• STANDARD FEATURES
• Static IP routing for unicast and multicast
• Management via SNMP, Web or Telnet
• IGMP v1 and v2
• Support for Point-to-Point, Point-to-Multi-Point and hybrid network topologies
• 10/100BaseT- Ethernet data interface (RJ-45)
• Firmware upgrade via FTP
• FAST feature upgrades at the factory or in the field
• Front Panel LEDs for Unit Status, Stored Event and the status of each of the four receive channels
• Interoperable with the CDM-570/L-IP , CDM-IP 550, and CDM-IP 300L

APPLICATIONS

• Disaster Recovery & Emergency Communications
• Enterprise
• Offshore & Maritime Communications
• Satellite News Gathering

TYPICAL USERS

• Enterprise
• Broadcasters
• Internet Service Providers
• Satellite Service Providers
• Oil Field Service Providers
• Maritime

QUALITY OF SERVICE (QoS)
The CDD-564/L and CDD-562L transparently pass the QoS prioritization established at the transmit end by the CDM-570/L-IP Satellite Modem.
HEADER DECOMPRESSION OPTION
Header compression reduces the bandwidth required for Voice over Internet Protocol (VoIP) by as much as 60%. Example: A G.729 voice codec, operating at 8 kbps, requires 32 kbps bandwidth once encapsulated into an IP/UDP/RTP frame. With IP/UDP/RTP header compression, the same voice call needs only 10.8 kbps total WAN satellite bandwidth. Typical Web/HTTP traffic can be reduced by 10% via IP/TCP header compression. Each demodulator can be independently configured for header decompression.
PAYLOAD DECOMPRESSION OPTION
Payload compression can reduce the required satellite bandwidth by up to 40%. Each demodulator can be independently configured for payload decompression.
NETWORK TOPOLOGIES
The CDD-564/L and CDD-562L simplify hub installations by reducing rack space and costs by providing four independent demodulators in a 1RU chassis. A bank of CDD-564/L or CDD-562L demodulators is ideal for a star topology network consisting of a shared outbound carrier with multiple return carriers from the remote sites.
At remote sites, the CDD-564/L or CDD-562L enables mesh connectivity between multiple sites. Operating in mesh topology with direct links between sites eliminates double-hop through the hub, thereby conserving bandwidth and reducing latency.
VIPERSAT MANAGEMENT SYSTEM INTEGRATION
A Vipersat powered network integrates this advanced demodulator with a powerful network management tool, the Vipersat Management System (VMS). In addition to the traditional Monitoring and Control of the CDM-570/L-IP modems, CDD-564/L and CDD-562L demodulators, the VMS allows these devices to share bandwidth, and when needed, switch automatically to a dedicated SCPC channel.
VMS provides for dynamic bandwidth allocation while in SCPC mode, automatically altering the bandwidth based on traffic conditions. This effectively enables the network to better handle connection oriented applications and reduce network congestion, jitter and latency. The VMS also allows for dynamic point-to-point mesh connections to be established between remotes.