SMD 989
– User Manual
Page 35 (105)
Configure Modulator
– Inputs
The
Input
tab provides selection of the Primary Input and the option to enable a Backup Input to
the modulator. A backup input may be selected in the event of a primary input fault. The selected
Primary or the Backup Input is routed to the main modulator input. The selected Primary and
Backup Inputs must be enabled and active inputs. (See the previous section of this manual)
Switching Manually from Primary Input To Backup Input
:
You can switch manually between the Primary Input and Backup input with the icon located at the
top of the middle modulator section. Click on the
icon. This icon changes
to a Switch to Primary Input icon when the Backup Input is active.
There are several options for defining failover conditions in which the input to the modulator
switches from the Primary Input to the Backup input. There are also options for defining
conditions in which the input returns from the Backup Input to the Primary Input.
-
Failover to Backup
can be set to On Primary TS Sync Loss, On Primary TS
Analysis Failure or Manual Only. TS Sync Loss mode allows the SMD 989 to switch
to backup if the primary input transport sync is lost. In TS Analysis mode failover is
based on transport stream errors or sync loss. This allows the SMD 989 to switch to
a backup source when there are errors in the transport stream even if it does not lose
sync. (TS Analysis Failover/Restore switching requires SMD 970 TS Analysis Option)
If
TS Sync Loss Failover
is selected. Restore to Primary can be set to Manual Only,
On Primary TS Sync Restored, or On Backup TS Sync Loss. The switchover
Interval(s) can be set from 1 to 20 seconds.
If
TS Analysis Failover (option)
is selected, Restore to Primary options are Manual
Only on Primary TS Analysis Restored or On Backup TS Analysis Failure. Failover
conditions can be enabled/disabled and Switch After interval can be set from 1 to 30
seconds.
IMPORTANT NOTE: When selecting TS Analysis Failover for Primary or Backup inputs, the
TS Analysis feature must be enabled or active for the respective primary and/or backup.
See section Configure Modulator
– TS Analysis on page 41.
Figure 29 Primary & Backup Input, Failover and Restore
