Modem Defaults - Comtech EF Data SDM-100A Installation And Operation Manual

SDM-100A Satellite Modem

4.3.5 Modem Defaults

The M&C has default settings that are loaded into the modem at power-up. These default
settings are also loaded each time the modem has been Hard Reset.
The following table lists the defaults settings for each modem configuration parameter.
Data Rate
TX Rate A
TX Rate B
TX Rate C
TX Rate D
TX Rate V
TX-IF Frequency
TX-IF Output
Mod Power Offset
TX Power Output
V.35 Scrambler
Differential Encoder
Modulator Type
Encoder Type
CW Mode
TX Clock Source
Buffer Clock Source
TX Clock Phase
RX Clock Phase
Baseband Loopback
Buffer Size
Note: The following system settings will not revert to the default values after a hard
reset:
Rev. 0
Modulator Defaults
A
64 kbit/s, QPSK
96 kbit/s, QPSK
128 kbit/s, QPSK
38.4 kbit/s, QPSK
19.2 kbit/s, QPSK
70 MHz
OFF
0 dB
-10 dBm
ON
ON
INTELSAT Open
Viterbi
Normal (OFF)
Interface Defaults
TX Terrestrial
Receive Satellite
Auto
Normal
OFF
Bypass
•
Parity
•
Remote Address
•
Remote Baud Rate
Defaults
Demodulator Defaults
Data Rate
RX Rate A
RX Rate B
RX Rate C
RX Rate D
RX Rate V
RX-IF Frequency
V.35 Descrambler
Differential Decoder
Demodulator Type
Decoder Type
IF Loopback
RF Loopback
Sweep Center Freq
Sweep Range
BER Threshold
System Defaults
Time
Date
Baud Rate
Parity
Address
Operation Mode
Theory of Operation
A
64 kbit/s, QPSK
96 kbit/s, QPSK
128 kbit/s, QPSK
38.4 kbit/s, QPSK
19.2 kbit/s, QPSK
70 MHz
ON
ON
INTELSAT Open
Viterbi
OFF
OFF
0 Hz
70000 Hz
None
12:00 AM
7/4/76
9600
Even
1
Duplex
4–13