Product specifications

CDD-880 Multi Receiver Router Revision 0
Introduction MN-CDD880
1–8
1.4 Summary of Specifications
1.4.1 Demodulator
Specification Parameters
Frequency Range 950 to 2150 MHz
Input Type ‘N’ female connector
Input Impedance
50
Ω
, 17 dB minimum return loss
Input Power Range -130 + 10 log(symbol rate) to -80 + 10 log(symbol rate) dBm (see Figure 1-6)
Maximum Composite Operation Level 102
–
10 log(symbol rate, desired carrier) dBC, +10 dBm max, with the additional
requirement that within ±10 MHz of the desired carrier, composite power is ≤ +30 dBC.
Absolute Maximum, No Damage +20 dBm
Adaptive Equalizer 5-tap design, selectable on/off
Acquisition Range Fixed acquisition range of ± Rs/2 = receive symbol rate / 2
Clock Tracking Range ± 100 ppm min
Acquisition Range +/- 100kHz
Spectral Inversion Normal or Inverted
Return Loss min 18dB (typical 20 dB)
Receiver Signal Level Monitor +/- 6dB (typical)
FEC Mode VersaFEC
–
CCM Only
Decapsulation
Streamline
Symbol Rate Range
16Ksps to 4.5 Msps in CCM Mode
Spectral Mask 20%, 25% or 35%.
Data Rate 6Kbps to 15.35 Mbps and corresponds to symbol rate ranges in CCM Mode
Modulation and Code Rate Modulation Code Rate Min (Kbps) Max. (Kbps)
BPSK 0.488 16.0 2190.0
QPSK 0.533 18.0 4800.0
QPSK 0.631 21.0 5670.0
QPSK 0.706 23.0 6340.0
QPSK 0.803 26.0 7220.0
8-QAM 0.642 31.0 8670.0
8-QAM 0.711 35.0 9600.0
8-QAM 0.780 38.0 10530.0
16-QAM 0.731 47.0 13160.0
16-QAM 0.829 54.0 14910.0
16-QAM 0.853 55.0 15350.0
Descrambling V.35 or OFF
(FUTURE) I&Q Constellation
Via Web Server (HTTP)
Interface
Monitor Functions
•
Eb/No Frequency Offset
• Corrected BER
• Rx signal level
• LNB current and voltage
Data and Management Interface 10/100 BaseT Fast Ethernet RJ-45 port
Terrestrial Traffic Interface 10/100/1000 BaseT Gigabit Ethernet (<360 Mbps) RJ-45 port
Command Line Interface (CLI) EI
A
-232 via DB-9 REMOTE port