Comtech EF Data CRS-400 - Manual (Page 65)

CRS-400 1:8 Redundancy Switch Revision 0
Remote Control MN/CRS400.IOM
49
A.3.5.3 (CONFIG, OPTS) HOLDOFFS
BACKUP HOLDOFF SEC: 05
RESTORE HOLDOFF SEC: 10
Use HOLDOFFS to set the holdoffs, or delay times, between the switch’s modem alarm
detection and its reactions to the alarm. Both holdoffs can be set from 2 to 99 seconds.
Note: Holdoffs are only applicable when the switch is in Auto mode.
Backup
Holdoff When an active mod/demod exhibits an unmasked fault, the switch bridges it
with the redundant unit and checks that the latter is not also faulted. If no
fault is detected in the redundant unit, the Backup Holdoff determines how
long the switch will wait before performing the actual backup, or switchover
of traffic, to the redundant mod/demod.
Restore
Holdoff
The switch continues to back up a faulted traffic mod/demod even after the
fault clears, unless another active mod/demod becomes faulted. In this case,
the Restore Holdoff is the length of time that the originally faulted
mod/demod must stay unfaulted before the switch will automatically put it
back online so that the redundant mod/demod is available to bridge the newly
faulted mod/demod.