Config: Mask; Config: Mask Transmit; Config: Mask Receive - Comtech EF Data CDM-Qx Installation And Operation Manual

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier®
Front Panel Operation
5.4.8

CONFIG: Mask

Alarm Mask: Transmit Receive
Reference
Select Transmit, Receive, Reference – and when applicable with an appropriately-equipped
CDM-QxL L-Band unit – BUC or LNB the using the ◄ ► arrow keys, then press
5.4.8.1 CONFIG: Mask
Tx Alarm Mask: Tx-FIFO
G.703-BPV Tx-AIS
Select Tx-FIFO, G.703-BPV, or Tx-AIS using the ◄ ► arrow keys, then press
Note: The functionality of the Active and Masked selections shown for CONFIG: Mask
Tx-FIFO are essentially identical for the CONFIG: Mask
Transmit
BPV and CONFIG: Mask
CONFIG: Mask
Tx-FIFO Alarm:
Active
Select Active or Masked using the ◄ ► arrow keys, then press
selected, then a Transmit Traffic fault will be generated whenever the transmitter sees that the
Transmit FIFO has slipped. If Masked is selected, no alarm will be generated.
5.4.8.2 CONFIG: Mask
Rx Alarm Mask: AGC Eb/No
Rx-AIS Buffer
Select AGC, Eb/No, Rx-AIS or Buffer using the ◄ ► arrow keys, then press
Note: The functionality of the Active and Masked selections shown for CONFIG: Mask
AGC are essentially identical for the CONFIG: Mask
Receive
CONFIG: Mask
CONFIG: Mask
AGC Alarm:
Active
Select Active or Masked using the ◄ ► arrow keys, then press
selected, then a Receive Traffic fault will be generated whenever the demodulator sees that
the composite input level being applied will cause compression in the IF stages, and hence
degrade the performance of the demodulator.
BUC LNB (◄ ►,ENT)
Transmit
(◄ ► ENT)
Transmit
Transmit
Masked (◄ ► ENT)
Receive
(◄ ► ENT)
Rx-AIS, and CONFIG: Mask
Receive
Receive
Masked (◄ ► ENT)
5–37
Tx-AIS submenus.
Tx-FIFO
Receive
AGC
Revision 7
MN/CDMQX.IOM
.
ENTER
.
ENTER
Transmit G.703-
. If Active is
ENTER
.
ENTER
Receive Eb/No,
Buffer submenus.
. If Active is
ENTER