Receive; Low Noise Block Down Converter (Lnb) Support; Figure 1-6. Rx Carrier Level Vs. Symbol Rate (L-Band 950 - 2150 Mhz) - Comtech EF Data CDD-880 Installation And Operation Manual

CDD-880 Multi Receiver Router
Introduction
1.4.3.1

Receive

Parameter
Data Rate (each Demodulator)
Maximum Aggregate Data Rate
Symbol Rate (Each Demodulator)
FEC Mode
Modulation and Code Rates, Data
Rate Ranges
Figure 1-6. Rx Carrier Level vs. Symbol Rate (L-Band 950 – 2150 MHz)
1.4.3.2

Low Noise Block Down Converter (LNB) Support

Parameter
Reference (10 MHz)
Voltage
Current
Current Alarm
Specifications
16 kbps to 15.35 Mbps, in 1 bps step (CCM Mode) (Modulation and FEC dependent)
50 Mbps
16 ksps to 4.5 Msps (CCM Mode)
VersaFEC Decoder (Return Link ACM and VCM modes)
• BPSK 0.488 16 kbps – 2.19 Mbps
• QPSK 0.533 18 kbps – 4.8 Mbps
• QPSK 0.631 21 kbps – 5.56 Mbps
• QPSK 0.706 23 kbps – 4.8 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
Specifications
Supplied through Rx IF center conductor, 10.0 MHz ±0.06 ppm, selectable ON/OFF,
-3.0 dBm ±3 dB
Supplied through Rx IF center conductor, selectable ON/OFF, 13V DC, 18V DC, 24V
DC
500 mA, maximum
Programmable MIN and MAX current alarms
1–10
MN-CDD880
Revision 2