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Comtech EF Data DMD2401/DMD2401L User Manual

Page 121

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User Interfaces

DMD2401/DMD2401L/DMD2401 IBS/IDR Satellite Modem

4-82

TM065 – Rev. 3.3


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Source

Input Level Limit


Demodulation
Type

Convolutional
Decoder









Reed-Solomon

Reed-Solomon N

Reed-Solomon K

Reed-Solomon T


RS Interleaver
Depth

Differential
Decoder

Descrambler
Control

Descrambler
Type






Spectrum

Buffer Size


Buffer Clock

Buffer Clock
Polarity

Operating Mode

Alarm 1 Mask



Lower Level Limit, Binary Value, 1 dB Steps, Negative Sign
Implied

0 = QPSK, 1 = BPSK, 2 = 8PSK, 4 = OQPSK

0 = None
1 = Viterbi 1/2 Rate
3 = Viterbi 3/4 Rate
5 = Viterbi 7/8 Rate
7 = Sequential 1/2 Rate

9 = Sequential 3/4 Rate
11 = Sequential 7/8 Rate
14 = Trellis 2/3
20 = TPC 0.7932D
21 = TPC 0.4953D

0 = Disable, 1 = Enable

Unsigned Binary

Unsigned Binary

Note: Always set to Zero; as the T value is calculated
from N and K.

Unsigned Binary, 4 or 8


0 = Off, 1 = On


0 = Disable, 1 = Enable


0 = None
1 = IBS Scrm.
2 = V35_IESS
3 = V35_CCITT
4 = V35_EFDATA
7 = ReedSolomon Scrm.
8 = V35_EFRS

0 = Normal, 1 = Inverted

Byte 1 – 2 = Buffer Size in ms
Byte 3 - 4 = Buffer Size in Bytes

0 = External, 1 = Internal, 2 = EXC, 3 = RX SAT

0 = Normal, 1 = Inverted


0 = Normal, 1 = 2047 Test

Bit 0 = Receive Processor Fault

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