Comtech EF Data CDM-600L, Installation And Operation Manual

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CDM-600L Satellite Modem Revision 0
Front Panel Operation MN/CDM600L.IOM
6–25
CONFIG: MASK: RX-IF
Use the [
←
] [
→
] arrow keys to select the parameter to edit: AGC or Eb/No. 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
backward alarm inputs are to be used. An activated alarm may respond to a hardware
input at P5A (H/W) or be software controlled by a receive fault on the modem (S/W).
CONFIG: MASK: SATELLITE ALARMS: RX
Select which Rx IDR backward alarms are to be monitored.
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
PROCESS ALARMS RECEIVED FROM SATELLITE
BWA1=N, BWA2=N, BWA3=N, BWA4=N