Comtech EF Data SDM-2020 - Manual (Page 56)

SDM-2020 Satellite Demodulator Revision 4
Specification MN/SDM2020D.IOM
5–4
5.1.2 Remote Port and M&C Specification
Table 5-3. Remote Port and M&C Specifications
Remote Port and M&C Specifications
M&C Port Remote Control:
ASYNC Serial Interface
Baud Rate
Serial Format
Data Bits
Stop Bits
Remote Port Addressing
EIA-485 (2/4-wire) or EIA-232
300, 600, 1200, 2400, 4800, 9600, or 19200 bps
ASCII
8 bps with no parity; 7 bps with odd/even parity bit
2
Range: 1 to 255
Control Items: Data Rate
Symbol Rate
Framing Type (None, 188, 204)
Clock and data phase
Modulation Type: QPSK, 8-PSK, 16-QAM
Code Rate
BER Threshold (None, 1 x10
-3 to 1x 10 -8 )
E
b
/N
0
Threshold (None, 3.0 to 16.0 dB)
RX IF Frequency
2047 Pattern
Data Loopback (Where applicable)
Scrambler On/Off (Test Mode)
RS Correction On/Off
DC On/Off (L-Band only)
Min. Current limit (Max. Current Limit)
Max. Current limit 1 to 1000 mA
Date and Time
Display contrast
Status All Configuration Items
Spectral Inversion = Normal or Inverted
RX Frequency Tracking
RX Input Level (dBm) Corrected BER
Raw BER
Eb/N0
LNB current monitor
Faults (Continued) LNB Current Over/Under Limits
Carrier detect (Viterbi)
IF synthesizer fault
I or Q channel loss of activity
BER threshold, except NONE Module Fault
Frame Sync Loss
Interface PLLs not locked (where
applicable)
Note: See Appendix A for a complete
listing of remote port commands and status
items.
Alarms FIFO full/empty (interface, where applicable)
Configuration Retention Non-volatile
Stored Configurations 10 save and 10 recall