The CDD-562L is an integrated IP demodulator that receives 2 independent L-Band channels and combines 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.

The CDD-562L simplifies hub installations by reducing rack space and costs by providing two independent demodulators in a 1RU chassis. A bank of CDD‑562L or CDD-564/L 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‑562L or CDD-564/L 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.

Data Encryption
The CDD-562LEN model has an optional data encryption feature. The unit supports 3xDES data decryption to prevent unauthorized access to data over the satellite link, which is configurable on a per demodulator basis.

 Key Features

Features For Each Demodulator
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)
LNB support: 10 MHz reference and LNB power
2nd Generation Turbo Product Coding (TPC) forward error correction

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-multipoint and hybrid network topologies
10/100Base-T 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 two receive channels
Interoperable with the CDM‑570/L-IP, CDM‑IP 550, and CDM‑IP 300L

Advanced IP Options
Quality of Service (QoS) – The CDD-562L transparently passes the QoS prioritization established at the transmit end by the CDM-570/L-IP Satellite Modem.

Header Compression – Reduces the bandwidth required for Voice over Internet Protocol (VoIP) by as much as 60%. Typical Web/HTTP traffic can be reduced by 10% via IP/TCP header compression. Each demodulator can be independently configured for header decompression.

Payload Compression – Can reduce the required satellite bandwidth by up to 40%. Each demodulator can be independently configured for payload decompression.

Vipersat Management System (VMS) – Integrates with the powerful network management tool 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.

Data Encryption

The CDD-562LEN model has an optional data encryption feature. The unit supports 3xDES data decryption to prevent unauthorized access to data over the satellite link, and is configurable on a per demodulator basis.