Module Identification; Table 5-2. Efdata Part Numbers For Various Modules - Comtech EF Data SDM-100A Installation And Operation Manual

SDM-100A Satellite Modem

5.3 Module Identification

The modem PCBs each have an assembly number that is marked on the board. The latest
revision is stamped on the board along with the serial number.
EFData tracks the hardware by the assembly number, revision, and serial number.
When replacing a plug-on module, care must be taken to ensure the proper orientation of
the card. Refer to the individual sections on each module for the location of the
configuration identification.
Refer to Table 5-2 for a list of part numbers and descriptions of various modules used in
the modem.
Chassis Assembly Base Part #
RF Modulator Part #
RF Demodulator Part #
Sequential Decoder
Interface (One per Modem)
Rev. 0

Table 5-2. EFData Part Numbers for Various Modules

Dash #
1
2
Dash #
1
2
3
4
Dash #
1
2
RS-422
V.35
RS-232-C
ASYNC
ADPCM
AS/5182-X
Description
AC, EFD, with Display
DC, EFD, with Display
AS/3995-X
Description
50Ω Modulator
75Ω Modulator
50Ω High Power
75Ω High Power
AS/4401-X
Description
50Ω Demodulator
75Ω Demodulator
IC/EFD 8858
AS/2524
AS/2532 or AS/4326
AS/2533
AS/4089
AS/3916
Maintenance
5–9