Comtech CDM-625A-ENI Advanced Satellite Modem

Comtech CDM-625A-ENI Advanced Satellite Modem

The Comtech CDM-625A-ENI is an advanced satellite modem for IP, telecom and mobile backhaul networks. It combines VersaFEC-2, Adaptive Coding and Modulation, optional DoubleTalk Carrier-in-Carrier and an integrated four-port managed Ethernet switch to improve throughput, availability and satellite bandwidth efficiency. Dual 70/140 MHz and extended L-band capability supports flexible deployment in modern and legacy networks.

Frequency Range: 50–180 MHz; optional 950–2250 MHz

Data Rate: 18 kbps to 25 Mbps
Symbol Rate: 18 ksps to 12.5 Msps
Modulation: BPSK, QPSK, OQPSK, 8PSK, 8-QAM, 16-QAM and 32-ARY
Data Interfaces: Ethernet, EIA-422/530, V.35, G.703, ASI, LVDS and HSSI
Applications: Mobile backhaul, IP and G.703 trunking, maritime communications, enterprise networks, communications-on-the-move and satellite news gathering

Key Features

• VersaFEC-2 high-performance LDPC with ACM and CCM

• VersaFEC low-latency and ultra-low-latency FEC

• Optional DoubleTalk Carrier-in-Carrier bandwidth compression

• Carrier-in-Carrier Automatic Power Control

• Selectable 5%, 10%, 15%, 20%, 25% and 35% rolloff

• Integrated four-port 10/100Base-T managed Ethernet switch

• VLAN support and priority-based Quality of Service

• Jumbo Ethernet frame support

• IP/Ethernet and serial or G.703 sub-multiplexing

• Quad E1 interface with enhanced drop-and-insert

• Independently selectable 70/140 MHz and extended L-band IF

• Automatic Uplink Power Control and EDMAC

• SNMP v2/v3, HTTP, Telnet and serial management

• RADIUS client for centralized management authentication

• MetaCarrier Carrier ID technology

• Optional BUC and LNB power and 10 MHz reference

• 1:1 and 1:10 redundancy configurations available

• Backward compatible with the Comtech CDM-625