Comtech CDM-800 Advanced VSAT TDM Backhaul Gateway Satellite IP Router
The Comtech CDM-800 is an Advanced VSAT TDM Backhaul Gateway Satellite IP Router designed for high-speed satellite IP networking and backhaul applications. It combines satellite modulation, demodulation, packet processing, and Ethernet connectivity in a single 1RU platform.
The router supports QPSK, 8PSK, 16APSK, and 32APSK modulation with transmit data rates up to 160 Mbps. Its DVB-S2 decoder supports ACM, CCM, and VCM modes, making it suitable for satellite networks that need flexible bandwidth and modulation options.
The CDM-800 supports a wide range of IP networking protocols, including TCP, UDP, IP, ICMP, ARP, FTP, Telnet, SNMP, IPv4 routing, IP Multicast, DiffServ, and HTTP. Detailed packet and throughput statistics help operators monitor network traffic and performance.
The unit provides 10/100Base-T and 10/100/1000Base-T Ethernet interfaces for network connectivity, along with BNC and N-type interfaces for satellite transmission. Its 50 to 180 MHz and 950 to 2150 MHz operating frequency ranges support different satellite RF configurations.
The 1RU design makes the Comtech CDM-800 suitable for telecommunications networks, satellite backhaul, VSAT infrastructure, enterprise satellite connectivity, and other space and satellite communication environments where reliable IP transport and efficient satellite bandwidth utilization are required.
Key Features
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Advanced VSAT TDM backhaul gateway and satellite IP router
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Supports QPSK, 8PSK, 16APSK, and 32APSK modulation
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Transmit data rates up to 160 Mbps
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DVB-S2 decoding with ACM, CCM, and VCM modes
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Supports transmit symbol rates up to 62 Msps
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10/100Base-T and 10/100/1000Base-T Ethernet interfaces
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Operating frequencies from 50 to 180 MHz and 950 to 2150 MHz
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1RU rack-mount design with 100-240 VAC or -48 VDC power options
Specifications
| Product Type |
Advanced VSAT TDM Backhaul Gateway Satellite IP Router |
| Transmit Modulation |
QPSK, 8PSK, 16APSK, 32APSK |
| Transmit Data Rate |
QPSK 0.479 - 108.255 Mbps; 8PSK 1.740 - 160.0 Mbps; 16APSK 2.575 - 160.0 Mbps;
32APSK 3.623 - 160.0 Mbps
|
| Transmit Symbol Rate |
QPSK 1 to 62 Msps; 8PSK 1 to 62 Msps; 16APSK 1 to 47 Msps; 32APSK 1 to 37 Msps |
| Modulation - FEC |
DVB-S2 Decoder (ACM, CCM and VCM modes); Short Frame, Normal frame |
| QPSK Data Rate Range |
0.479 - 108.255 Mbps |
| 8PSK Data Rate Range |
1.740 - 160.000 Mbps |
| 16APSK Data Rate Range |
2.575 - 160.000 Mbps |
| 32APSK Data Rate Range |
3.623 - 160.000 Mbps |
| Encapsulation |
Low Overhead Enhanced GSE Available Options |
| Statistics |
Detailed packet and throughput stats |
| Transmit Data Interface |
70/140 MHz Transmit BNC (female) |
| L-Band Transmit Interface |
L-Band Transmit N-type (female) |
| External Reference |
BNC (female) |
| Ethernet Interface |
10/100Base-T Ethernet interface (IEEE 802.3u), 1 x RJ-45 |
| Gigabit Ethernet Interface |
10/100/1000Base-T Ethernet interface (IEEE 802.3ab), 2 x RJ-45 |
| Remote Control / Console Port |
9-pin D-sub (male) |
| Operating Frequency |
50 to 180 MHz; 950 to 2150 MHz (L-Band) |
| Frequency Resolution |
100 Hz |
| Frequency Stability |
± 0.06 ppm (± 6 x 10-8), 0 to 50 C (32 to 122 F) |
| Scrambling |
PL Scrambling (Gold Codes), disabled |
| Spectral Inversion |
Normal or inverted |
| Transmit Filtering |
Per ETSI EN 302-207 |
| Transmit Filter Rolloff (Alpha) |
20%, 25% and 35% |
| Pilot Insertion |
User Selectable - on/off |
| Output Power |
-5 to -25 dBm, in 0.1 dB steps (50 - 180 MHz); -5 to -40 dBm, in 0.1 dB steps (950 - 2150 MHz) |
| Output Power Accuracy |
± 1.0 dB over frequency, data rate, modulation type and temperature range of 0 to 50 C |
| Transmit On/Off Ratio |
-60 dBc minimum |
| Harmonics and Spurious |
Better than -60 dBc/4 kHz (typically < 65 dBc/4 kHz) |
| Power Supply |
100-240 VAC, 47 Hz-63 Hz IEC 320 input; -48 VDC (HW option) |
| BUC Power Supply Hardware |
24 VDC, 90 W @ 50 C; 48 VDC, 150 W @ 50 C |
| Dimensions (1RU) |
1.75" x 19.0" x 17.7" (4.4 x 48 x 44.8 cm) approximate |
| Operating Temperature |
0 to 50 C |
| Storage Temperature |
-20 to 70 C |
| Humidity |
95% maximum, non-condensing |
| Accessories |
CRS-170A 1:1 Modem Redundancy Switch (L-Band); CRS-180 1:1 Modem Redundancy
Switch (70/140 MHz)
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