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CDM-600 Satellite Modem Revision 7
Front Panel Operation MN/CDM600.IOM
6–28
CONFIG: MASK: BUFFER SLIP
Select either ACTIVE or MASKED, using the [↑] [↓] arrow keys, then press ENTER.
• If the user selects ACTIVE, then a Buffer Slip fault will be generated whenever
the receive circuitry senses that the buffer has either underflowed, or overflowed.
• If the user selects MASKED, no alarm will be generated.
CONFIG: MASK: RX-IF
Use the [←] [→] arrow keys to select the parameter to edit: AGC or EbNo. Select either
ACTIVE or MASKED, using the [↑] [↓] arrow keys, then press ENTER.
If the user selects ACTIVE, then an AGC will be generated whenever the
receive signal level exceeds –20 dBm (for the desired carrier). An Eb/No fault
will be generated whenever the demodulator sees the receive Eb/No fall below
the pre-determined value.
If the user selects MASKED, no alarm will be generated.
CONFIG: MASK: SATELLITE ALARMS
Select either TX or RX, using the [←][→] arrow keys, then press ENTER.
CONFIG: MASK: SATELLITE ALARMS: TX
Select the Backward Alarm (BWA) to be edited using the [←][→] arrow keys. Edit the
settings using the [↑] [↓] arrow keys, then press ENTER. Select how the TX IDR
BUFFER SLIP= ACTIVE (ACTIVE,MASK)
RXIF: AGC = ACTIVE (ACTIVE,MASK)
EbNo = MASKED (ACTIVE,MASK)
SATELLITE ALARMS
TRANSMIT RECEIVE
PROCESS ALARMS FROM (H/W, S/W, OFF)
BWA1=OFF BWA2=OFF BWA3=S/W BWA4=H/W