Technical Specifications
DMD2401/DMD2401L/DMD2401 IBS/IDR Satellite Modem
7-2
TM065 – Rev. 3.3
Typical Eb/No (Viterbi)
Rate 1/2
Rate 3/4
Rate 7/8
at BER = 10
-5
5.1
6.2
7.5
at BER = 10
-7
6.2
7.7
8.6
Typical Eb/No (Trellis 8PSK)
Rate 1/2
at BER = 10
-5
7.2
at BER = 10
-7
8.9
Typical Eb/No, @ 64 Kbps
Sequential (Optional)
Rate 1/2
Rate 3/4
Rate 7/8
at BER = 10
-5
4.0
5.0
6.1
at BER = 10
-7
4.9
5.9
7.4
Note: Eb/No typical values include effect of using differential encoding and V.35
scrambler.
Descrambler:
Intelsat V.35, mode selectable
Data Buffering:
8 bits to 262,144 bits, in 8-bit steps
Terrestrial Interfaces:
RS-449/-422, RS-232, V.35, U.E1, B.T1.B8ZS, B.E1, or
B.T1.AMI
Alarms
Summary Alarms:
Two separate form-C contacts available at the rear
panel. Each provides a summary alarm of fault
conditions.
7.4 Front Panel LED Indicators
Unit:
Power
Alarm
Event
Remote
Demodulator:
Signal Lock
Major Alarm
Minor Alarm
Test Mode
Modulator:
Transmit On
Major Alarm
Minor Alarm
Test Mode
Summary of Contents for ComStream DMD2401
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