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Operation
3.3.14
SDM-300A Custom Modem Defaults
Refer to Table 3-2 for custom modem defaults.
Note: The following parameter do not revert to default settings after a hard reset:
•
•
•
Data Rate
TX Rate A
TX Rate B
TX Rate C
TX Rate D
TX Rate V
IF Frequency
IF Output
Power Output
Scrambler
Differential Encoder
Carrier Mode
Modem Reference
RS Encoder
TX Clock Source
TX Clock Phase
EXT-CLK Frequency
Buffer Clock
Buffer Size
RX Clock Phase
B-Band Loopback
Interface Loopback
Loop Timing
TX Data Fault
RX Data Fault
TX 2047 Pattern
RX 2047 Pattern
TX Coding Format
AUPC Enabled
Nominal Power
Minimum Power
Maximum Power
Tributary Frequency #1
Tributary Frequency #2 to #7
Tributary Interface #1 and #8
Tributary Interface #2 to #7
3–74
Address/Parity/Baud Rate
Remote Type
EXT AGC MIN Power
Table 3-2. SDM-300A Custom Modem Defaults
Modulator
A
64 kbit/s, QPSK 1/2
128 kbit/s, QPSK 1/2
256 kbit/s, QPSK 1/2
512 kbit/s, QPSK 1/2
38.4 kbit/s, QPSK 1/2
70 MHz
Off
-10 dBm
On
On
Normal-Modulated
Internal
Off
TX Terrestrial
Auto
1544 kHz
RX (Satellite)
384 bit/s
Normal
Off
Off
Off
None
None
Off
Off
AMI
Configuration Local AUPC
Off
-10.0 dB
-30.0 dBm
-5.0 dBm
Configuration Mux
2048 kbit/s
256 kbit/s
RS422
RS232
•
EXT AGC Max Power
•
Display Contrast
Demodulator
Date Rate
RX Rate A
RX Rate B
RX Rate C
RX Rate D
RX Rate V
IF Frequency
Descrambler
Differential Encoder
RF Loopback
IF Loopback
BER Threshold
Sweep Center
Sweep Range
Reacquisition
RS Decoder
Interface
RX Coding Format
Channel, Level (TX/RX)
Drop Format
Insert Format
Drop SAT
Insert SAT
ASYNC TX Baud
ASYNC RX Baud
ASYNC TX Length
ASYNC RX Length
ASYNC TX Stop
ASYNC RX Stop
ASYNC TX Parity
ASYNC RX Parity
Target E b /N 0
Tracking Rate
Local CL Action
Remote CL Action
Tributary #1 to #7
Tributary #8
Tributary Clock Data
Aggregate DR
SDM-300A Satellite Modem
A
64 kbit/s, QPSK 1/2
128 kbit/s, QPSK 1/2
256 kbit/s, QPSK 1/2
512 kbit/s, QPSK 1/2
38.4 kbit/s, QPSK 1/2
70 MHz
On
On
Off
Off
None
0 Hz
60000 Hz
0 seconds
Off
AMI
-5 dBm
T1
T1
Channel Terr, others T-Slot Terr
Channel Terr, other T-Slot Terr
110 kbit/s
110 kbit/s
7 bit/s
7 bit/s
2 bits
2 bits
Even
Even
0.6 dB
0.5 dB/min
Hold
Hold
SYNC
ASYNC
CLK:NRM
Data NRM
2305 kbit/s
Rev. 4
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