Daktronics AF-3080-68-R,A - Manual (Page 38)

3.9 Signal Termination Between Two (or More) Signs
Reference Drawings:
System Riser Diagram, Modem ..................................... Drawing A-88426
System Riser Diagram, RS422 ...................................... Drawing A-92681
System Riser Diagram, RS232 ...................................... Drawing A-96058
System Riser Diagram, Fiber....................................... Drawing A-110559
Schem; Fiber, Modem, RS422 Surge Protector Input . Drawing A-125900
Signal Input, Outdoor Venus 1500............................... Drawing A-129110
System Riser Diagram, Radio ..................................... Drawing A-185325
RS422 Interconnection
This is the most common method of terminating signal between two or more signs. A
6-conductor cable is used. One end terminates to the “RS422 OUT” 6-position
terminal block (A31-TB3) on the controller in the first display. The other end of the
cable will terminate on the “RS422 IN” 6-position terminal block (A31-TB2) on the
controller of the second display.
Figure 32: Signal Termination Panels
Face A – RS422
OUT
(A31-TB3)
Field
Cabling
Face B – RS422
IN
(A31-TB2)
Pin 1 (GND) Green Pin 6 (NC)
Pin 2 (O-) Blue Pin 5 (I-)
Pin 3 (O+) White Pin 4 (I+)
Pin 4 (I-) Brown Pin 3 (O-)
Pin 5 (I+) Black Pin 2 (O+)
Pin 6 (GND) Red Pin 1 (NC)
Electrical Installation 3-14