Ross DRA-8204, Руководство пользователя

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3–4 • User Controls DRA-8204 User Manual (Iss. 05)
Output Channel Configuration
A special feature of the DRA-8204 is the ability to operate in a number of different channel
configurations. By simply changing channel jumpers, the DRA-8204 can be configured in the
following ways:
• Single channel
⎯
1:8
• Dual channel
⎯
1:4 + 1:4 (default setting)
• Dual channel
⎯
1:6 + 1:2
Figure 3.2 Channel Output Jumpers
Channel Rate Selection Buttons and LEDs
Each channel has a channel rate selector button and rate LEDs to set the input signal rate that the
channel will process. Pressing the button illuminates a corresponding LED. Repeated presses will
cycle through the selections.
For most applications, setting the Channel Rate to AUTO (default setting) will allow the
DRA-8204 to automatically detect the incoming data rate. In the AUTO mode, the Data Rate
LEDs will display the data rate detected from the incoming SDI signal.
For applications where only one specific data rate will be used, and the fastest possible lock times
are desired, the DRA-8204 can be set and locked to a specific data rate. Press the
Channel Rate
Selection button until the AUTO LED is off, and the specific data rate LED is illuminated. Only
SDI signals matching the selected data rate will be reclocked and passed through the DRA-8204.
Single or Dual Channel Jumper Configurations
Use Table 3.1 to configure your channel for single or dual channel operation.
Note
—
Position C is not used on the DRA-8204 and should not be selected. The
top empty position for each jumper is for factory use only.
Table 3.1 Output Configuration
Configuration JP3 JP4 JP5
Single Channel 1:8
Input Channel A: Output BNCs 2-8, 10 A A A
Input Channel B: Output BNCs 2-8, 10 B B B
Dual Channel
1:4 + 1:4 (default)
Input Channel A: Output BNCs 2-5
A A B
Input Channel B: Output BNCs 6-8, 10
Dual Channel
1:6 + 1:2
Input Channel A: Output BNCs 2 and 4
A B B
Input Channel B: Output BNCs 3, 5-8 and 10