Daktronics Galaxy AF-3190 Series, Руководство пользователя, Страница: 31 / 97

3.8 Signal Termination from Computer to Sign
Note:
The AF-3197 is designed for quicker connection to other displays and other
additional equipment. Connection of the control computer to the first display needs
to be wired to the surge suppressor, modem, or fiber optic board in the display.
Depending on the communication type ordered the following cables may be provided
with the display:
1. Interconnect cable from primary to echo, length 10 feet
2. Temperature sensor with quick connect cable, length 10 feet
3. Client radio with quick connect cable, length 25 feet
Figure 20: Signal Termination Locations
RS232
Reference Drawings:
System Riser Diagram, RS232 .................................... Drawing A-174341
Schem, Sig Wiring, Internal, W/quick Connect PCB.... Drawing B-177662
Cntrlr; Galaxy, 8 Conn, J1087...................................... Drawing B-177838
A display that is controlled using RS232 requires the use of a J-box within 25 feet of
the display. From the J-box to the display, the signal will be wired directly to the
controller inside the display. The cable from the J-box to the display must be routed
though conduit.
Do not run signal and display power through the same conduit.
1. Terminate one end at the J-box and the other end of the wire to the 6-
position terminal block on the controller labeled “RS232 IN” (A31-TB1).
2.
Figure 22
and Drawing B-177662 shows the terminal block wiring.
Drawing B-177838 shows the controller.
3. The controlling laptop computer connects to the J-box through the DB9 to
DB25 serial cable (W-1249) (refer to
Drawing A-174341 ).
Electrical Installation
3-9