Daktronics RS-422 Communication - Manual (Page 12)

RS-422 Communication Manual 6
Primary-to-Primary Interconnection
Replacement of the Surge Board
The surge suppre e d
the RS-422 data line. It suppresses
volta
n order to protect the displ
input.
The surge suppre
it
inside the RS422 io
display. (In certain cases the displ
with the surge board mounted in th
directions are also true for those in
1. To repla upp
disconnect the signal connect o Figure 7).
Note: Carefully remove the terminal block from
TB1. Do not remove the i
2. The surge suppressor is h
Carefully re g
Figure 6: Interconnection from Primary to Primary
Primary Field Primary RS422
ssor is an inlin evice that is used to filter
surges down to a low
ay controller’s RS-422 ge i
ssor included w
signal terminat
h the display, is located
n enclosure mounted at the
ay may have been ordered
e display. The following
stallations.)
ce the surge s ressor (0P-1146-0031), first
ions (refer t
ndividual wires.
eld in place with four nuts.
move them usin a 5/16” nut driver .
RS422 OUT
(TB3)
Cabling IN
(TB2)
Pin 1 (GND) Shield Pin 6 (GND)
Pin 2 (D2OUT-N) Red Pin 5 (D1IN-N)
Pin 3 (D2OUT Black Pin 4 (D1IN-P) -P)
Pin 4 Green Pin (D2IN-N) 3 (D1OUT-N)
Pin 5 Pin 2 (D1OUT-P) (D2IN-P) White
Pin 6 Pin 1 (Shield) (Shield)
gure e Suppressor Fi 7: RS-422 Surg