Comtech EF Data CDM-500 - Manual (Page 43)

Front Panel Operation CDM-500 Closed Network Satellite Modem
6–14 Rev. 1.3
According to the choice selected, one of the following sub-menus will be displayed:
6.5.37 (CONFIG, MASK) AGC
SELECT AGC ALARM MASK:
ACTIVE MASKED(PRESS ENT)
Select ACTIVE or MASKED, using the LEFT/RIGHT arrow keys, then press Enter.
If the user selects ACTIVE, then a Receive Traffic fault will be generated whenever the
demodulator senses that the composite input level being applied will cause compression
in the IF stages, and hence degrade the performance of the demodulator.
If the user selects MASKED, no alarm will be generated under these conditions.
6.5.38 (CONFIG, MASK) Eb/No
SELECT Eb/No ALARM MASK:
ACTIVE MASKED(PRESS ENT)
Select ACTIVE or MASKED, using the LEFT/RIGHT arrow keys, then press Enter.
If the user selects ACTIVE, then a Receive Traffic fault will be generated whenever the
demodulator determines that the Eb/No of the received carrier has fallen below the
threshold defined under CONFIG, RX, Eb/No.
If the user selects MASKED, no alarm will be generated under these conditions.
6.5.39 (CONFIG, MASK) RX-AIS
SEL RX-AIS ALARM MASK:
ACTIVE MASKED(PRESS ENT)
Select ACTIVE or MASKED, using the LEFT/RIGHT arrow keys, then press Enter.
If the user selects ACTIVE, then a Receive Traffic fault will be generated whenever the
demodulator senses that the ‘all ones’ condition is present in the receive data.
If the user selects MASKED, no alarm will be generated under these conditions.
6.5.40 (CONFIG, MASK) BUF-SLIP (Buffer slip)
SEL BUF-SLIP ALARM MASK:
ACTIVE MASKED(PRESS ENT)
Select ACTIVE or MASKED, using the LEFT/RIGHT arrow keys, then press Enter.