CDD-880 Multi-Receiver Router

Comtech EF Data

CDD-880 Multi-Receiver Router

Master Distributor

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  • Up to 12 Demodulators in 1RU chassis
  • Data rate: 16 kbps to 15.35 Mbps
  • Symbol rate: 16 ksps to 4.5 Msps
  • VersaFEC low-latency LDPC Forward Error Correction – Adaptive Coding and Modulation (ACM) capable
  • Modulation: BPSK, QPSK, 8-QAM, 16-QAM
  • Rolloff: 20%, 25%, 35%

  • Description
  • Technical Specifications
  • Support Documents

Overview

Comtech EF Data’s Advanced VSAT Solutions portfolio provides high-performance satellite-based communication solutions for a diverse range of applications, including maritime and offshore communications, mobile backhaul with RAN optimization, IP trunking and backhaul, corporate and enterprise networks, emergency and disaster recovery. Incorporating advanced technologies developed by Comtech EF Data, AHA Products Group, Memotec and Stampede, the solutions provide unmatched performance, industryleading bandwidth efficiencies and network optimization – while minimizing Total Cost of Ownership.

Details

  • Up to 12 Demodulators in 1RU chassis
    • Data rate: 16 kbps to 15.35 Mbps
    • Symbol rate: 16 ksps to 4.5 Msps
    • VersaFEC low-latency LDPC Forward Error Correction – Adaptive Coding and Modulation (ACM) capable
    • Modulation: BPSK, QPSK, 8-QAM, 16-QAM
    • Rolloff: 20%, 25%, 35%
  • High-Performance Integrated Packet Processing
    • Layer 2 (Bridged Point to Multipoint – BPM) or Layer 3 (Routed) operation
    • Jumbo frame support
    • VLAN support in BPM mode
    • Header decompression, including Layer 2 headers in BPM mode
    • Lossless payload decompression
    • Ultra low overhead Streamline Encapsulation
  • Integrated with NetVue Integrated Management System and Vipersat Management System
  • Operating Frequency: 950 to 2150 MHz
  • Traffic Interface: 10/100/1000Base-T Ethernet
  • Management Interface:10/100/1000Base-T Ethernet for web and SNMP
  • Redundancy op

Specifications
Receivers/Demodulators per 1RU Chassis 2, 4, 6, 8, 10 or 12
Receive Data Rate
(Each Demodulator)
16 kbps to 15.35 Mbps, in 1 bps step
(CCM mode) (Modulation and FEC dependent)
Maximum Aggregate Receive Data Rate 50 Mbps
Symbol Rate
(Each Demodulator)
16 ksps to 4.5 Msps (CCM mode)
FEC VersaFEC Decoder (ACM and CCM modes)
Modulation & Code Rate / Data Rate Range
BPSK 0.488 16 kbps – 2.19 Mbps
QPSK 0.533 18 kbps – 4.8 Mbps
QPSK 0.631 21 kbps – 5.67 Mbps
QPSK 0.706 23 kbps – 6.34 Mbps
QPSK 0.803 26 kbps – 7.22 Mbps
8-QAM 0.642 31 kbps – 8.67 Mbps
8-QAM 0.711 35 kbps – 9.6 Mbps
8-QAM 0.780 38 kbps – 10.53 Mbps
16-QAM 0.731 47 kbps – 13.16 Mbps
16-QAM 0.780 50 kbps – 14.04 Mbps
16-QAM 0.829 54 kbps – 14.91 Mbps
16-QAM 0.853 55 kbps – 15.35 Mbps
  
Operating Frequency 950 to 2150 MHz L-Band, 100 Hz frequency resolution
Operating Bandwidth All carriers must be within 70 MHz
Connector Type N (female)
Impedance 50 Ω
Return Loss 18 dB, minimum (typical 20 dB)
Input Power Range, Desired Carrier -130 + 10 log(symbol rate) to -80 + 10 log(symbol rate) dBm
Maximum Composite Operating Level Lesser of +10 dBm or 105 - 10 log (symbol rate, desired carrier) dBc, uniformly spread across 950-2150 MHz less desired carrier occupied bandwidth. This spec allows the entire 950-2150 MHz.
L-Band to be filled with an average uniform spectral density that is 14 dB greater than the desired carrier spectral density
Absolute Maximum, No Damage +20 dBm
Rolloff 20%, 25%, 35%
Acquisition Range Receive Symbol Rate (Rs) < 64 ksymbols/sec
± Rs/2 kHz (fixed), Rs in ksymbols/sec
Receive Symbol Rate (Rs) >= 64 ksymbols/sec ± 32 kHz (fixed)
De-scrambling Comtech, disabled
Spectral Inversion Normal or inverted
LNB Reference (10 MHz) Via center conductor of RX input, 10.0 MHz ± 0.06 ppm
Selectable on/off, -3.0 dBm ± 3 dB
LNB Voltage
(Older units require HW ECO)
Via center conductor of RX input, selectable on/off, 13 VDC, 18 VDC, 24 VDC
LNB Current 500 mA, maximum
LNB Current Alarm Programmable MIN and MAX current alarms
Monitor Functions Es/No estimate, Receive Signal Strength Indicator (RSSI), frequency offset
(View our PDF Datasheet for more information)

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