Home / Shop / Satellite Communications / Comtech CDM-625A Advanced Satellite Modem (18 kbps to 25 Mbps, 70/140 MHz and L-band IF, DoubleTalk Carrier-in-Carrier)
Comtech CDM-625A Advanced Satellite Modem (18 kbps to 25 Mbps, 70/140 MHz and L-band IF, DoubleTalk Carrier-in-Carrier)
Comtech
Comtech CDM-625A Advanced Satellite Modem (18 kbps to 25 Mbps, 70/140 MHz and L-band IF, DoubleTalk Carrier-in-Carrier)
Model: CDM-625A
Pricing for this product is provided on request.
Request a quoteThe CDM-625A is a 1RU satellite modem with VersaFEC and VersaFEC-2 forward error correction, DoubleTalk Carrier-in-Carrier bandwidth compression and a four-port managed Ethernet switch. A single unit supports both 70/140 MHz and extended L-band IF, which simplifies sparing. An optional packet processor adds header and payload compression and QoS. Comtech lists it for mobile backhaul, IP and G.703 trunking, offshore and maritime links, enterprise networks and satellite news gathering.
Specifications
| Type | Satellite modem, 1RU rack mount |
| Advanced features | DoubleTalk Carrier-in-Carrier, ACM (VersaFEC), optional Packet Processor (header/payload compression, QoS), IEEE 1588v2 PTP, AUPC, EDMAC |
| Operating temperature | 0 to 50 C (32 to 122 F) |
| Data rate | 18 kbps to 25 Mbps |
| Symbol rate | 18 ksps to 12.5 Msps |
| IF frequency | 50-180 MHz (70/140 MHz) standard; 950-2250 MHz L-band option in the same unit |
| Modulation | BPSK, QPSK/OQPSK, 8PSK/8-QAM/8-ARY, 16-QAM/16-ARY, 32-ARY |
| FEC | Viterbi, Sequential, concatenated Reed-Solomon, TCM, TPC (IESS-315), LDPC, VersaFEC, VersaFEC-2 (some codecs are optional modules) |
| Data interfaces | EIA-422/530, V.35, G.703 T1/E1/T2/E2, Quad G.703 E1, ASI, LVDS, HSSI, 4-port 10/100Base-T managed Ethernet switch |
| Power | 100-240 VAC auto-sensing (-24 VDC and -48 VDC hardware options) |
| Dimensions | 1RU, 1.75 x 19.0 x 17.65 in (4.4 x 48 x 44.8 cm) approx. |
| Weight | 10.8 lb (4.9 kg) maximum with all option modules and 48 VDC BUC power supply |
| Model | CDM-625A |
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