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Comtech EF Data DD2401 User Manual

Page 44

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User Interfaces

DD2401 Satellite Demodulator

4-

20

MN-DD2401 - Rev. G

*<2>


*<1>









*<1>


*<30>

*<1>









*<1>



*<1>


*<30>

*<1>

<1>


Receive ESC
Audio #2 Volume

Alarm 5 Mask









Insert Mode


Insert Map

Insert Alarm Mask









Insert Back Alarm
Mask


Force Terrestrial
Back Alarm

Insert Edit Map

Rx Impedance

1


TPC Interleaver


-20 to +10, Signed Binary Value in dB


Bit 0 = IBS Satellite Multiframe Fault
Bit 1 = IBS Satellite Frame Fault
Bit 2 = Spare
Bit 3 = IBS Alarm if BER < 10-03
Bit 4 = IBS Prompt Alarm
Bit 5 = IBS Service Alarm
Bit 6 = Turbo Codec Lock Fault
Bit 7 = Spare
(0 = Mask, 1 = Allow)

0 = Disable, 1 = T1-D4, 2 = T1-ESF, 3 = PCM-30, 4 = PCM-30C, 5 =
PCM-31, 6 = PCM-31C, 7 = T1-SLC96, 8 = T1-D4-S, 9 = T1-ESF-S

Mapping of Satellite Channels to insert Terrestrial Timeslots

Bit 0 = Frame Lock Fault
Bit 1 = Multiframe Lock Fault
Bit 2 = CRC Lock Fault. Valid only in T1-ESF and E1 – CRC enabled
Bit 3 = T1 Yellow Alarm Received
Bit 4 = E1 FAS Alarm Received
Bit 5 = E1 MFAS Alarm Received
Bit 6 = E1 CRC Alarm Received
Bit 7 = CRC Calculation Fault
(0 = Mask, 1 = Allow)

Bit 0 = Backward Alarm Received from Satellite
Bits 1 – 7 = Spares
(0 = Mask, 1 = Allow)

Force D&I Terrestrial Backward Alarm to be Trans
(0 = Not Forced, 1 = Forced)


0 = 75 ohms, 1 = 50 Ohms

0 = Disable Interleaver, 1 = Enable Interleaver

Status Bytes

<1>

<1>









<1>

Revision Number

Alarm 1









Alarm 2

Decimal Point Implied

Bit 0 = Receive Processor Fault
Bit 1 = Signal Lock Fault
Bit 2 = Receive Satellite AIS Fault
Bit 3 = Rx AGC Input Level Fault
Bit 4 = Reed-Solomon Sync Fault
Bit 5 = Reed-Solomon Excessive Errors Fault
Bit 6 = Reed-Solomon Uncorrectable Word Fault
Bit 7 = Receive Forced Alarm
(0 = Pass, 1 = Fail)

Bit 0 = Buffer Underflow
Bit 1 = Buffer Overflow