Section 4: signal overview, 1 primary to primary signal connection, Section 4 – Daktronics AF-3400-12-RGB User Manual
Page 21: Signal overview, Primary to primary signal connection

Signal Overview
15
Section 4: Signal Overview
Daktronics Galaxy
®
displays are equipped to receive many types of communication signals. The
following sections include a brief description of each available communication type. Also included is
a list of troubleshooting tips to check that the display is connected and configured correctly.
For specific details on installing the signal, consult the quick guide and the manual. These were
included in the shipment of the communications equipment. Each type is listed below with its
manual number.
Note: These are the standard communication types. However, each site is unique and may include
additional equipment. If problems arise, contact the display’s seller, service company, or Daktronics
Customer Service.
4.1 Primary to Primary Signal Connection
If this location requires multiple displays mounted back-to-back, two primary displays will be
installed. In that case, the following connections need to be made:
• Remove the module from the bottom left corner of the display and locate the controller
for this display.
• Route cable through conduit from the back of the first primary display to the back of the
second primary display. Use the knockouts for access, being careful not to damage any
internal components
• 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.
• The signal cable will connect from TB3 out on the first primary display to either:
o
A surge board at TB1 in a second primary display or
o
To TB2 on the controller in the second primary display.
Note: In either case the connections are flipped. Refer to the table following and to Figure 11
for connections on both displays.
Communication
Type
Communication
Manual ED#
RS-422
ED-14742
Fiber
ED-14743
Radio
ED-13932
RS-232
ED-14739
Ethernet
ED-14745
Fiber Ethernet
ED-14746
Ethernet Radio
ED-16483
Modem
ED-14744