Daktronics AB-1600-1.5,2.5 - Manual (Page 36)

Electrical Installation 3-10
Note: Refer to the Shop Drawings in Appendix B for the location of the line receiver in the display. To
access the inside of the display, refer to Section 4.1.
The data signal to the line receiver is sent through fiber
optic cable from the controller computer. The fiber optic
cable connects to the line receiver at the J8 (Data In)
jack, as seen in Figure 30. This cable should be run
through rigid, metal conduit, as opposed to flexible conduit
(metal or PVC).
Once the signal reaches the line receiver, it is sent to
vertical shift boards within the display. The vertical shift
boards distribute the signal to all of the display modules.
Internal connections for power and the temperature
monitoring system are completed at the factory. From the
serial line interface board, display information is routed to
the vertical shift board behind the upper-left-most
lampbank (front view). A 20-pin ribbon cable connects J4
on the serial line interface to J2 (Input) on the vertical shift board.
The vertical shift board then sends the display information to the lampbank on which it is mounted. A
20-pin ribbon cable connects J1 (Data Out) on the vertical shift board to J2 (Input) on the lampbank.
On 16 and 24-high displays, J3 (Output) on each vertical shift board connects to J2 (Input) on the
vertical shift board below it. Each display row has one vertical shift board behind the left-most
lampbank (front view).
The display data then cascades down the row as it is passed from J3 (Output) on each lampbank to J2
(Input) on the next lampbank over 20-pin ribbon cable.
Figure 30: J8 (Data In) connection on the line
receiver