Daktronics CR-2004, Display Manual

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Electrical Installation 19
Fiber Optic
Another common signal communication method is fiber optic cabling. A minimum cabling of
multi-mode, 62.5/125 um, and 2-core fiber cable is recommended (Daktronics part number
W-1242). In such installations, the signal enclosure shown in
Figure 14 will be replaced by a
fiber J-box. This method also requires a signal converter between the All Sport console‟s
scoreboard output and the fiber optic cable (not provided by Daktronics).
4.5 Power/Signal Connections Between Sections
Refer to Drawing B-236615 in Appendix A for exact driver and power/signal interconnect
cable locations.
1. On the lowest scoreboard section, open the appropriate access panel to locate the
bundle of interconnect cable coming from the driver.
Note: Additional panels may be opened for easier access when routing the cable.
2. Route the interconnect cable through the hole in the top of the lower cabinet up into
the hole in the bottom of the upper cabinet, and connect the J43 jack to the mating P43
plug coming off of one of the drivers.
3. Repeat steps 1-2 to connect the remaining scoreboard sections.
4.6 Lightning Protection
The use of a disconnect near the scoreboard to completely cut all current-carrying lines
significantly protects the circuits against lightning damage. In order for this system to
provide protection, the power must be disconnected when the scoreboard is not in use.
The control console should also be disconnected from power and from the signal junction box
when the system is not in use. The same surges that may damage the scoreboard‟s driver can
also damage the console‟s circuitry.