Comtech EF Data SDM-9000 - Manual (Page 30)

Introduction SDM-9000 Satellite Modem
1–8 Rev. 4
1.2 Modem Assemblies
The following table reflects the possible configurations available for the SDM-9000:
Configuration Type Chassis P/N Mod Demod.
Interface
Type
70/140 MHz Duplex AC 3966-1 X QPSK
70/140 MHz TX AC 3966-1 X
70/140 MHz RX AC 3966-1 X 8PSK/
16QAM
70/140 MHz Duplex DC 3966-2
70/140 MHz TX DC 3966-2
70/140 MHz RX DC 3966-2
The current main assemblies, options, and alternates for the modem are listed in the table
below:
Part
Number
Description Comments
AS/3965 Assy, Top SDM-9000
PL/3966-1 Assy, Chassis, AC CE Mark
PL/3966-2 Assy, Chassis, DC
PL/3978 Motherboard
PL/2305 Display/Monitor & Control No FW/ included
PL/4124-1 Filter, Nyquist TX
PL/4124-2 Filter, Nyquist RX
PL/4109 Supply, Power AC Alternate
PL/4110 Supply, Power AC Preferred
The following table outlines the options available for a specific SDM-9000
configuration:
Output Oscillator Data
Format
Mod P/N RF Mod
P/N
Demod
P/N
RF Demod
P/N
50 Ω Standard QPSK
8PSK
16QAM 3969-1 3995-33 3970-1 4401-31
75 Ω Standard QPSK
8PSK
16QAM 3969-2 3995-34 3970-2 4401-32
50 Ω Standard QPSK 3969-3 3995-33 3970-3 4401-31
75 Ω Standard QPSK 3969-4 3995-34 3970-4 4401-32
50 Ω HI Stability QPSK
8PSK
16QAM 3969-5 3995-37 3970-1 4401-31
75 Ω HI Stability QPSK
8PSK
16QAM 3969-6 3995-38 3970-2 4401-32
50 Ω HI Stability QPSK 3969-7 3995-37 3970-3 4401-31
75 Ω HI Stability QPSK 3969-8 3995-38 3970-4 4401-32