Description

The CDM–625A Advanced Satellite Modem builds on our legacy of providing the
most efficient and reliable satellite modems. With support for VersaFEC® Forward
Error Correction (FEC), the revolutionary DoubleTalk® Carrier–in–Carrier®
bandwidth compression, additional rolloffs and advanced packet processing, the
CDM–625A provides significant savings under all conditions. This combination of
advanced technologies enables multi–dimensional optimization, allowing satellite
communications users to:

• Minimize operating expenses (OPEX)
• Maximize throughput without using additional transponder resources
• Maximize availability (margin) without using additional transponder resources
• Minimize capital expenses (CAPEX) by allowing a smaller BUC/HPA and/or antenna
• Or, a combination to meet specific business needs

FEATURES

• DoubleTalk Carrier–in–Carrier bandwidth compression
• Carrier–in–Carrier Automatic Power Control
• VersaFEC–2 High Performance LDPC with Adaptive Coding and Modulation (ACM), Short Block and Long Block
• VersaFEC FEC with Adaptive Coding and Modulation (ACM)
• 5%, 10%, 15%, 20%, 25% and 35% Filter Rolloff
• Packet Processor with header compression, payload compression, advanced Quality of Service (QoS) and Managed Switch Mode with VLAN support
• Integrated 4–port managed Ethernet switch with VLAN and QoS
• Jumbo frame support
• Dual Band Capability: 70/140 MHz and extended L–Band (950 – 2250 MHz) in same unit
• Data Rate: 18 kbps to 25 Mbps
• Symbol Rate: 18 ksps to 12.5 Msps
• Modulation: BPSK, QPSK/OQPSK, 8PSK/8–QAM/8–ARY, 16–QAM/16–ARY, 32–ARY
• FEC: Viterbi, Sequential, Concatenated Reed Solomon, TCM, Turbo Product Code (TPC) (IESS–315 Compliant), LDPC Code, VersaFEC (low–latency LDPC) and VersaFEC–2 (high performance LDPC)
• Widest Range of data interfaces: EIA–422/530, V.35, G.703 T1, G.703 E1, G.703 T2, G.703 E2, Quad G.703 E1, ASI, LVDS, HSSI, 4–port 10/100Base–T Ethernet
• IEEE 1588v2 Precision Time Protocol
• Sub Mux to multiplex IP/Ethernet traffic with serial or G.703 traffic
• Drop & insert for T1/E1
• Enhanced D&I++ for single T1/E1 & quad E1
• Management: 10/100Base–T Ethernet with SNMP, Distant End SNMP Proxy, HTTP, Telnet and EIA–232/EIA–485
• RADIUS Client
• Carrier ID using MetaCarrier® Technology
• Embedded Distant–end Monitor and Control (EDMAC)
• Automatic Uplink Power Control (AUPC)
• Engineering Service Channel (ESC/ESC++)
• Standard high–stability internal reference (± 6 x 10–8)
• 5–tap Adaptive Equalizer
• L–Band TX: 10 MHz reference for BUC, FSK communications and optional BUC power supply
• L–Band RX: 10 MHz reference and LNB power supply
• L–Band: Advanced FSK for LPOD M&C
• 1:1 and 1:10 redundancy switches available
• Backwards compatible with CDM–625
• Environmentally Resistant version (CDMER–625A) available