Comtech EF Data SDM-2020 - Manual (Page 30)

SDM-2020 Satellite Demodulator Revision 4
Introduction MN/SDM2020D.IOM
1–4
1.2 Assemblies
The demodulator consists of the assemblies listed in Table 1-1
Table 1-1. Comtech EF Data Module Part Numbers
Part Number Description Comment
PL/5746 Video Demod Baseband Board
PL/5782 IF Module, 75 Ω
PL/6169 Front Panel Assembly
PL/6170 SDM-2020 Top Assembly
PL/7732-1 L-Band 4-Input IF Module, 75 Ω June 1999 and later
PL/7733-1 Video Demod Baseband Board
KT/8220-1 Chassis: 90 – 264 VAC, L-Band IF, 75 Ω
KT/8220-2 Chassis: -48 VDC, L-Band IF, 75 Ω
KT/8220-5 Chassis: 90 – 264 VAC, 70/140 MHz IF, 75/50 Ω
KT/8220-6 Chassis: 90 – 264 VAC, 70/140 MHz IF, 75/50 Ω
PL/8292 70/140 MHz IF (Option) (see Note) May 2000
Notes:
1. Operates with P/L7733 Mainboard only.
2. For individual Data Interfaces, refer to Table 1-2.
1.3 FAST Options
The SDM-2020 Satellite Demodulator is extremely flexible and powerful, and
incorporates a large number of optional features. Some customers may not require all of
these features, and therefore, in order to permit a lower initial cost, the modem may be
purchased with only the desired features enabled. If, at a later date, a customer wishes to
upgrade the functionality of a modem, Comtech EF Data provides a system known as
Fully Accessible System Topology (FAST) which permits the purchase and installation
of options through the use of special authorization codes, entered through the front panel,
or remotely. Options include:
• Original Equipment Manufacturer (OEM) LCD
• 8-PSK – DVB
• 16-QAM – DVB
• 2 L-Band Inputs
• 4 L-Band Inputs