Comtech EF Data CDM-625A - CONFIG: Mask; CONFIG: Mask  AIS; CONFIG: Mask  Buffer;Ref

CDM-625A Advanced Satellite Modem MN-CDM625A
Front Panel Operation Revision 4
6–50
• Use the ▲▼ arrow keys to set the Antenna Handover switching mode as Manual or
Auto.
• Set the Communication Port Address for this unit by using the
◄ ►arrow keys to
select a digit. Then, use the
▲▼ arrow keys to change that digit. The valid address
range is from 0
1001 to 65535. Press ENTER.
Press CLEAR to return to the MEO Feature (Enable/Disable) menu.
6.2.1.11 CONFIG: Mask
These submenus allow you to selectively mask (ignore) or make active various alarms and traffic
conditions that are monitored by the modem.
Alarm Masks: AIS Buffer/Ref RxIF TxClk
CnC TxSat RxSat Terr BUC LNB ClkExt ()
Use the
◄ ►arrow keys to select a parameter. Press ENTER.
6.2.1.11.1 CONFIG: Mask  AIS
AIS: Tx-Terr-AIS = Masked (Active,Mask)
Rx-Sat-AIS = Active ()
Use the
◄ ►arrow keys to select Tx-Terr-AIS or Rx-Sat-AIS, and then use the ▲▼ arrow keys to
select either as Active or Masked. Press ENTER.
Note that:
• When you select Tx-Terr-AIS as Active, the modem generates a fault whenever the
modulator senses that the ‘all ones’ condition is present in the terrestrial data.
• When you select Rx-Sat-AIS as Active, the modem generates a fault whenever the
demodulator senses that the ‘all ones’ condition is present in the receive data.
• Typical for either, when you select AIS as Masked, the modem generates no alarms.
6.2.1.11.2 CONFIG: Mask  Buffer/Ref
Buffer Slip Alarm = Active (Active,Mask)
Reference Alarms = Active ()
Use the
◄ ►arrow keys to select Buffer Slip Alarm or Reference Alarms. Then, typical for either
choice, use the
▲▼ arrow keys to select Active or Masked.