Daktronics Galaxy AF-3155, Manual

Page: 32 / 87

Figure 24: RS232 J-box to Controller Board
J-Box to Controller Board (A31)
J-box Wire Color Controller Board
(TB1)
Pin 1 (TX-P) Black Pin 5 (RX1)
Pin 2 (RX-P) Clear or Red Pin 3 (TX1)
Pin 3 (GND) Shield Pin 4 (GND)
RS422
Reference Drawing:
System Riser Diagram, RS422 ................................... Drawing A-174135
Schematic, Internal, W/Quick Connect........................ Drawing B-177662
An RS422 controlled display requires the use of signal converter near the computer.
From the signal converter, cable is run to the surge board assembly in the display or
to a junction box. The junction box has a quick connect plug, which will be
connected to the display. In either case, the cable from the signal converter to the
surge board must be routed though conduit.
Do not run signal and display power
through the same conduit. Refer to
Figure 25
and Drawing A-174135 for the system
layout.
1. If using a quick connect cable, terminate the 4-conductor shielded cable at
the signal converter, and to the surge board in the junction box. A quick
connect cable will then go to the RS422 jack (J32) on the back of the
primary display.
2. When connecting directly to the surge board in the display, terminate one
end of the 4-conductor shielded cable at the signal converter and the other
end to the 6-position terminal block on the surge board labeled “RS422 IN”.
Drawing B-177662 and
Figure 26
show the terminal block wiring.
Electrical Installation
3-12