Comtech EF Data CDD-562ALEN Dual IP Satcom Demodulator with 3xDES Encryption
Dual Independent Encrypted Reception of L-Band Satellite channels
CDD-562ALEN Dual IP Demodulator with 3xDES Encryption
The Comtech CDD-562ALEN 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.
Integration
The CDD-562ALEN simplifies hub installations by reducing rack space and costs by providing two independent demodulators in a 1RU chassis. A bank of CDD‑562AL or CDD-564AL demodulator is ideal for a star topology network consisting of a shared outbound carrier with multiple return carriers from the remote sites.
The 562ALEN also fully supports 3xDES Encryption for Military and Governmental satcom applications.
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.
Data Decryption Option
The CDD-564/LEN supports 3xDES data decryption to prevent unauthorized access to data over the satellite link, and is configurable on a per demodulator basis.
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-564ALEN and CDD-562ALEN simplify hub installations by reducing rack space and costs by providing four independent demodulators in a 1RU chassis. A bank of CDD-564ALEN or CDD-562ALEN 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-564ALEN or CDD-562ALEN 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.
Other features provided with this new product are:
Military Satcom Systems with 3xDES Encryption, Government VSAT Networks, Star & Mesh Topologies for remote site connectivity through a central hub station