Ross OpenGear DRA-8902 Series, User Manual

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3–6 • Configuration DRA-8902 Series User Manual (Iss. 02)
Enabling the Failover Feature
The failover feature enables the DRA-8902 to use a backup input source when the primary input
source is lost and a valid backup input is detected. Once the DRA-8902 determines that the
primary input source is stable (valid and locked), it automatically switches back to the primary
source. The
Input field on the Signal tab reports when the backup source is in use for either
channel.
The primary source assignments are determined using the procedure “ To assign an input to an
output channel ”.
To enable the failover feature to automatically switch inputs
1. From the Device View , select the Setup tab.
2. Select the Loss of Input Failover box for the channel.
The box displays a check-mark.
To immediately force a failover switch
1. From the Device View , select the Setup tab.
2. Toggle the Force Failover button for the channel.
The button label changes to Forced and the button is lit red.
To enable an alarm during a force failover switch
1. From the Device View , select the Alarms tab.
2. Select the Failover box for the channel.
The box displays a check-mark. The Signal tab will report when the channel is in
failover mode.
Muting an Output
If you have an unused output, it is recommended to either terminate the output or mute the output
via the Mute Outputs options available in DashBoard.
To mute an unused output
1. From the Device View , select the Setup tab.
2. Locate the Mute Outputs area located near the bottom of the Setup tab. You may need
to scroll down the tab.
3. Select the Output box for the output you wish to mute.
The box displays a check-mark.
Configuring the Invalid Signal Alarms
When enabled, this feature will indicate an alarm condition (red) in the corresponding Status
field(s) of the Signal tab. This occurs if the DRA-8902 does not detect a valid input signal for that
channel. To verify which BNC to troubleshoot, refer to the rear module labeling.
For More Information on...
• the rear module cabling designations, refer to the section “ Cabling ” on page 2-5.