I
NSTALLATION
E
LECTRICAL
INSTALLATION
18
AlphaXpress 8731 Sign Installation and Maintenance Manual (pn 1508610601 rev. A)
Sign to ground controller network connection
Figure 15.
Ground controller communications wiring.
Network wiring conduit
Install two runs of network wire (pn 71240402)
from the ground controller to the sign.
Connect one run to the RS422 terminal block on
the ground controller and to the RS422 terminal
block on the sign’s controller plate (see below).
(The other wire run is a spare in case the first run
ever fails.)
RED - ORANGE/WHITE
BLACK - WHITE/ORANGE
SHIELD
GREEN - BLUE/WHITE
WHITE - WHITE/BLUE
RED
BLACK
SHIELD
GREEN
WHITE
RED
BLACK
SHIELD
GREEN
WHITE
Run network wiring conduit into this area.
If any drilling is required, vacuum any
metal filings from the sign. Otherwise, the
sign fans could blow these pieces around
and possibly damage electronic
components.
RED - ORANGE/WHITE
BLACK - WHITE/ORANGE
SHIELD
GREEN - BLUE/WHITE
WHITE - WHITE/BLUE
S2
*
*
*
1
9
10
*
**
2
Ground controller
(housed in weatherproof
structure near the sign)
Controller plate