Ross openGear DRA-8804, Руководство пользователя

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3–6 • Configuration DRA-8804 User Manual (Iss. 04)
• Channel B — IN 2 is the primary input source and IN 1 is the backup source.
To enable the failover feature
1.
From the Device View , select the Setup tab.
2.
Select the Enable Failover box for the channel. The box displays a check-mark.
Configuring the Equalizer for a Channel
You can choose to enable or bypass the equalizer for each channel. The equalizer enables the card
to compensate for noise and signal losses inherent in long coaxial cable runs. Refer to the chapter
“
Specifications ” on page 5-1 for information on the cable equalization specifications.
To enable the equalizer
1. From the Device View , select the Setup tab.
2. Select the Enable Equalizer box for the channel. The box displays a check-mark.
To bypass the equalizer
1. From the Device View , select the Setup tab.
2. Select the Enable Equalizer box for the channel to clear the box contents.
Configuring the Reclocker for a Channel
This section summarizes how to enable the reclocker and select a data rate for the reclocker. This
enables the card to reclock to a specific data rate or automatically detects and reclocks the data
rate. It also sets the input signal rate type that the DRA-8804 will process.Note that the reclocker
for each channel is enabled by default.
To enable the reclocker
1. From the Device View , select the Setup tab.
2. Select the Enable Reclocker box for the channel. The box displays a check-mark.
3. Use the Reclocker Rate menu to select a data rate for the reclocker. Choose from the
following:
• Auto — The DRA-8804 reclocks at the detected rate automatically.
• 270 Mbps — The DRA-8804 is set to reclock at 270Mbps.
• 1.5 Gbps — The DRA-8804 is set to reclock at 1.5Gbps.
• 3.0 Gbps — The DRA-8804 is set to reclock at 2.97Gbps.
Note
— You must bypass the equalizer when using signals of less than 125Mbps (such as
SMPTE 310 signals). For signals 125Mbps and greater (such as SDI signals), you must enable
the equalizer.