Specifications

Maintenance SDM-650B Satellite Modem
6–22 Rev. 6
Table 6-3. EFData Part Numbers for SDM-650B Modules
Modulators Base Part Number — AS/0773
Dash # Description
1 SDM-650B, EFData Filtering
3 SDM-650F, FDC Comp Filtering
5 SDM-650B, STM Filtering
9 SDM-650F, FDC Filtering, with 1X10
-7
Reference
12 SDM-650F, FDC Filtering, Aydin Data Rate Crystal
14
SDM-650B, EFData Filtering, 50Ω Output
Demodulators Base Part Number — AS/0778
Dash # Description
1
SDM-650B, 70/140 MHz, 75Ω
6
SDM-650B, 70/140 MHz, 50Ω
Decoders Base Part Number — AS/0365
Dash # Description
1 SDM-650B (Std, F, C), 70/140 MHz (with GND rails)
2 SDM-650B (Std, F, C), 70 MHz (without GND rails)
3 SDM-650B w/ASYNC Interface (offset crystal)
4 SDM-650F, Aydin Data Rate Crystal
Interface and Filter Cards
Part # Description
AS/0627-2 V.35 Interface
AS/0627-3 RS-422/RS-449, and MIL-STD-188-114
AS/0627-8 RS-232 Interface
AS/0569 DS1 Interface
AS/0679 G.703 Balanced Interface
AS/1289-1 Asynchronous Overhead Channel Unit without AUPC
(RS-422, and MIL-STD-188-114)
AS/1289-2 V.35 Asynchronous Overhead Channel Unit without
AUPC
AS/1289-3 G.703 Asynchronous Overhead Channel Unit without
AUPC
AS/0930-1 Modulator Daughter Filter Card (Variable Rate)
AS/0715-X (See note) Modulator Daughter Filter Card (Fixed Rate)
AS/0929-1 Demodulator Daughter Filter Card (Variable Rate)
AS/0929-3 Fairchild Compatible Demod Daughter Filter Card
AS/0362-X (See note) Demodulator Daughter Filter Card (Fixed Rate)
AS/0698-X (See note) Demodulator Daughter Filter Card (Fixed Rate)
Note: X = 1 to 4, the number of filters installed on a fixed rate filter card.