Components
3
Section 2:
Components
2.1 Modules
A module is a replaceable unit consisting of a display panel with clusters of
LEDs, called pixels, and a driver board. The pixels show messages on the
Each module contains drive electronics that receive data packets from the
distribution board and light the appropriate pixels at the correct dimming
level.
2.2 Power Supplies
Power Supplies
The power supplies mount to internal cabinet verticals.
The power supplies provide voltage to power the modules. Multiple power
supplies provide power redundancy. Each power supply is paired with
another power supply to make a power supply group. If one power supply in
the group fails, the other is capable of supporting the full power load, which
prevents power failure to the modules.
Low Voltage Distribution Board
One low voltage distribution board (LVDB) mounts to each power supply.
The LVDB provides input and output voltage to the power supply.
The LVDB receives 120 VAC input voltage from the distribution panel.
Output from the power supply routes through the LVDB. Each output is
fused at 15 A with automotive spade fuses. From there, the 24 VDC
output routes to the modules.
LVDB diagnostics include power supply data sent to the VFC-3000
controller about output voltage and the passing or failing of each fuse.
Figure 2: LED Module
(Rear View)
Figure 3: LVDB
