Comtech EF Data DD2401 VME User Manual
Page 52
User Interfaces
DD2401 VME L-Band Demodulator Card Installation & Operational Manual
4-28
MN-VME2401 – Rev. B
<1>
<1>
*<1>
*<1>
Alarm 4
Common Alarm 1
Alarm 5
Insert Alarms
(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)
Bit 0 = -12 V Alarm
Bit 1 = +12 V Alarm
Bit 2 = +5 V Alarm
Bit 3 = Temperature Fault
Bit 4 = Interface FPGA Fault
Bit 5 = Battery Fault
Bit 6 = RAM/ROM Fault
Bit 7 = Spare
(0 = Pass, 1 = Fail)
Bit 0 = IBS/IDR Satellite Multiframe Sync Loss
Bit 1 = IBS/IDR Satellite Frame Sync Loss
Bit 2 = Spare
Bit 3 = IBS BER Alarm
Bit 4 = IBS Prompt Alarm
Bit 5 = IBS Service Alarm
Bit 6 = Turbo Codec Lock Fault
Bit 7 = Spare
(0 = Pass, 1 = Fail)
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 = Pass, 1 = Fail)
Opcode: <240Dh>
Query a Demodulator’s Eb/No, BER, Level, and AGC Voltage
Query response
<2>
<2>
<2>
<1>
<1>
Raw BER
Mantissa
Corrected BER
Mantissa
EbNo
Raw BER
Exponent
Corrected BER
Bytes 1 - 2 = Unsigned Binary Value Raw BER
Bytes 1 - 2 = Unsigned Binary Value Corrected BER
Unsigned Binary Value, 2 Decimal Places Implied
Byte 3 = Unsigned Binary Value Exponent
Byte 3 = Unsigned Binary Value Exponent