Daktronics AB-1600-1.5,2.5 - Manual (Page 29)

Electrical Installation
3-9
The data signal to the line receiver travels 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 29. Run this cable
through rigid, metal conduit, as opposed to flexible
conduit (metal or PVC).
Once the signal reaches the line receiver, it goes to
vertical shift boards within the display. The vertical
shift boards distribute the signal to all of the display
modules.
Daktronics completes the internal connections for
power and the temperature monitoring system at the
factory. From the serial line interface board, display
information routes 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 passes from J3 (Output) on each lampbank to J2
(Input) on the next lampbank over 20-pin ribbon cable.
J8 (Data In)
Fiber optic
cable
Figure 29: J8 (Data In) connection on the
line receiver