Grass Valley 2030RDA - Manual (Page 33)

2030RDA Instruction Manual 33
Functional Description
Functional Description
A block diagram of the 2030RDA is shown in Figure 20 .
Figure 20. 2030RDA Block Diagram
Input and Output Processing
The input section receives SD (standard definition) video from the passive
rear input module and sends it to signal equalizing and reclocking circuits.
The input section can also bypass the signal through the Input Selector cir-
cuits to the output amplifiers. The output amplifiers drive nine equal-phase
outputs on the passive rear module.
Microprocessor and Input Selector
The primary purpose of the microprocessor is to provide remote control
and monitoring capability for the 2030RDA. It receives signal present,
signal lock, and speed detection signals from the equalizer and reclocker
circuits. Using this information, local jumper settings, and remote control
commands, the microprocessor selects the internal signal path and gives
feedback through the LEDs and remote control bus.
SD EQ
Microcontroller
Remote control/monitoring
Bypass
Signal present, locked, speed signals
SD
RECLOCKER
INPUT
AMPLIFIER
SERIAL DIGITAL
INPUT
INPUT
SELECTOR
OUTPUT
DRIVERS
9 SERIAL DIGITAL
OUTPUTS
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