Daktronics RS-422 Communication - Manual (Page 11)

RS-422 Communication Manual
5
Reference Drawings:
Contr 1
e Primary display or two displays in a 2V,
rror (2V) quick connect cable (W-1503) is used to terminate signal
rimary display to Signal IN (J32) on the mirror display as shown below.
Signal Termination Between Displays
oller II, Galaxy, 8-conn, J1087 ............................................. Drawing B-20477
Primary - Mirror
Most displays are shipped as either a singl
Primary – Mirror configuration.
The Primary - Mi
between two displays. The six-foot cable goes from the Signal OUT (J34) on the
p
Figure 5: Display Interconnection Figure 4: Quick-connect Cable
Primary – Primary
If this location requires two displays that cannot be mounted back-to-back, two
primary displays will need to be installed. In that case the following connections will
need to be made:
1. Open the display, as explained in Section 4.4 of the display manual, and
locate the controller panel for these displays.
2. Route the cable through conduit from the back of the first primary display to
the back of the second primary display. Use one of the knockouts for access,
being careful not to damage any internal components
3. Use either a 4-pair signal cable or two 4-conductor, shielded cables to
connect both the signal and the temperature sensor information between
displays.
4. The signal cable will connect from TB3 out on the first primary display to
either:
a. A surge board at TB1 in a second primary display
b. (or) To TB2 on the controller in the second primary display.
c. Note: In either case the connections are flipped. See the table below
and Drawing B-204771 for connections on both displays.
d. In Figure 6, the signal connections between two controllers are shown.
e. See the instructions for the Optional Temperature Sensor in the
appendix of the display manual for connections that need to be made
for the temperature sensor termination.