Set Restore Holdoff Period; Set Alarm Masking - Comtech EF Data CRS-311 Installation And Operation Manual

CRS-311 1:1 Redundancy Switch
Modem, RMI/TMI, and Switch Configuration
If the CDM‐Qx/QxL configuration includes Carrier‐in‐Carrier
should be no less than 8 seconds.
Follow these steps to set the
Step Task
1 Go to the CONFIG
2 Change the BACKUP HOLDOFF to any number in the range of 1 to 99 seconds.
4.6.1.2.2

Set Restore Holdoff Period

The "Restore Holdoff" setting, which is also programmable from 1 to 99 seconds, determines
the ability of the Switch to automatically put the backed up Traffic Modem online again if its
fault clears.
Normally, the failed Traffic Modem taken offline remains offline indefinitely. If the fault clears,
traffic will be returned to the unit (in Auto mode) only if the Redundant Modem fails.
Follow these steps to set the
Step Task
1 Go to the CONFIG
2 Change the RESTORE HOLDOFF to any number in the range of 1 to 99 seconds.
4.6.1.3

Set Alarm Masking

Another way to adjust the Switch's reaction in Auto mode is to mask modem faults. You may
disable modem Rx, Tx or both fault types so that the Switch does not react to them. This
masking prevents the Switch from taking automatic action and prevents the logging of the faults
in the stored events list. These masks are global to all the modems attached to the Switch.
Follow these steps to set
Step Task
1
Go to CONFIG
2
Set the mask parameters as desired.
Backup Holdoff Period
HOLDOFFS menu.
Restore Holdoff Period
HOLDOFFS menu.
:
Alarm Masks
MASKS MODEM ALARMS.
4–19
®
this holdoff time
:
:
Revision 7
MN/CRS311.IOM