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Comtech EF Data MD2401 User Manual

Page 74

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MD2401 L-Band Multi Demod Installation and Operation Manual

User Interfaces

MN-MD2401

4–42

Revision 7


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Modulator Alarm 2
Minor Alarm








Reserved

Demodulator
Alarm 1








Demodulator
Alarm 2







Demodulator
Alarm 3








Demodulator
Alarm 4








Reserved

Common Alarm

(0 = Pass, 1 = Fail)

Bit 0 = Terrestrial Clock Activity Detect Fault
Bit 1 = Internal Clock Activity Detect Fault
Bit 2 = Tx Sat Clock Activity Detect Fault
Bit 3 = Tx Data Activity Detect Fault
Bit 4 = Terrestrial AIS (Tx Data AIS Detect Fault)
Bit 5 = Transmit Ext BNC Clock Activity Detect Fault
Bit 6 = Transmit Reed-Solomon Fault
Bit 7 = Tx Calibration Fault
(0 = Pass, 1 = Fail)

Ignored

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 = External Reference PLL Lock Fault
(0 = Pass, 1 = Fail)

Bit 0 = Buffer Underflow
Bit 1 = Buffer Overflow
Bit 2 = Buffer Under 10%
Bit 3 = Buffer Over 90%
Bit 4 = Receive FPGA Fault
Bit 5 = Rx LNB Fault, LBST Only
Bits 6 - 7 = Spares
(0 = Pass, 1 = Fail)

Bit 0 = IF Synthesizer Lock Detect Fault
Bit 1 = Rx Oversample PLL Lock Detect Fault
Bit 2 = Buffer Clock PLL Lock Detect Fault
Bit 3 = Viterbi Decoder Lock Fault
Bit 4 = Sequential Decoder Lock Fault
Bit 5 = Rx 2047 Test Pattern Lock Fault
Bit 6 = External Reference PLL Lock Fault
Bit 7 = Frame Sync Fault
(0 = Pass, 1 = Fail)

Bit 0 = Buffer Clock Activity Detect Fault
Bit 1 = External BNC Activity Detect Fault
Bit 2 = Rx Satellite Clock Activity Detect Fault
Bit 3 = External Reference PLL Activity Fault
Bit 4 = High Stability Activity Detect Fault
Bit 5 = High Stability PLL Fault
Bit 6 = Eb/No Threshold Fault
Bit 7 = Spare
(0 = Pass, 1 = Fail)

Ignored

Bit 0 = -12 V Alarm
Bit 1 = +12 V Alarm