Comtech EF Data SDM-2020 - Manual (Page 27)

SDM-2020 Satellite Modulator Revision 7
Product Data Specification MN/SDM2020M.IOM
2-5
Table 2-4. Modulator Specifications (Continued)
Monitor & Control Characteristics
Asynchronous Serial Interface EIA-485 (2-/4-wire), or EIA-232
Baud Rate 300, 600, 1200, 2400, 4800, 9600, or 19200 bps
Serial Format ASCII
Data Bits 7 bits with odd/even parity
8 bits with no parity
Stop Bits 2
Parity Odd, Even, or None
Remote Port Addressing Range: 1 to 255
Controlled Items:
Data
Data Rate
Symbol Rate
Energy Dispersal (Scrambler) On/Off (Test Mode)
Differential Encoder (On/Off)
Framing Type (None, 188, 204)
Clock and Data Phase (Normal/Inverted)
Modulation, Coding Modulation Type: QPSK, 8PSK, 16QAM
Code Rate (Viterbi/trellis)
Spectral Mask, DVB
Carrier TX IF Frequency
TX Output (On/Off)
TX Output Power Level
Spectral Inversion: Normal/Inverted
Test (Where Applicable) Pure Carrier
Dual Carrier (Carrier Null)
Offset Carrier (Single Sideband)
Data Loopback (Where Applicable)
LED Test
Scrambler (On/Off)
Reset
2047 Pattern (into payload)
Data Loopback
General Date and Time
Software/Firmware Version and Unit Identification
Display Contrast
Status All other configuration items
Faults Loss of Clock, or Out of Tolerance
Data Stable, all 1s (AIS), or all 0s
Loss of Synchronization
IF Synthesizers
Configuration Retention Non-volatile
Store Configurations 10 stored with recall.