Daktronics DF-1060 - Manual (Page 37)

For display systems using a base-of-sign
connection, the DataMaster 100 controller, shown
with a connecting cable in Figure 12, plugs
directly into an outdoor junction box, where the
operator keys in instructions for the sign.
Typically, the j-box is mounted to the display
pedestal or column support, and the controller
connects with the box via TIA/EIA-232 signal
cable (formerly RS-232). The controller draws its
power from the display itself. Refer to Drawings
A-175342 and A-164988 for complete details on
both indoor and outdoor direct-wire installations.
Control System Overview 4-3
Signal from the junction box enters the sign and
travels to the first display driver over 2-pair,
shielded signal cable. The 22 AWG cable must be
enclosed in conduit. Re-driven signal travels from
the driver of the first display to the driver of the
next over another line, also 22 AWG shielded cable
in conduit. The process repeats for as many displays as there are in the system.
Figure 12: DataMaster 100
Controller with Signal Cable
Once instructions have been input into the display, the driver's memory retains the
data, and the controller can be unplugged. The sign will continue to operate on the
stored information.
Signal cabling is similar for systems where the Data Master displays will be operated
remotely from a building location, except that the controller requires a wall pack
transformer. The transformer plugs into both the hand-held controller and into a 120
V AC outlet, as shown in
Figure 13. The DataMaster
controller also connects to a
junction box to send signal to
the display, but the j-box will
be located within the store or
office. The control location can
be up to 2,000 feet from the
actual sign.
Figure 13: Wire Control from Building Location
The operator changes the
display by entering current
lottery numbers and operating
instructions on the keypad of
the DataMaster controller. For
complete details on sign
operation, refer to Section 5.