Comtech CDM-625A-ENI Advanced Satellite Modem

Overview
The CDM-625A-ENI 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 and additional rolloffs, the CDM-625A-ENI 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
• 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
• 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 V2 and V3, 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