Daktronics DF-1020 - Manual (Page 26)

Mechanical and
Electrical Installation
3-6
To gain access to the driver enclosure, open the access door and remove the cover
from the enclosure. Refer to the electrical specifications drawings for the access
location for your sign.
Connect the power and signal cables at the appropriate locations on the driver
enclosure panel, as shown in Drawing A-184918.
The power feeder circuit connects directly to a terminal block in the driver
enclosure. The block is located in the bottom center of both types of driver
enclosure. Refer to the driver illustrations and the schematics, Drawings A-165028,
A-177935 and A-179599, for wiring details.
Route signal cabling to the terminal block on the lower left edge of the enclosure
(see Figure 5). The connections are labeled to permit easy installation. (In the 16-
column enclosure, the signal block is at bottom center.) For signal cable, Daktronics
recommends 2-pair shielded cable, 22 AWG (Daktronics part number W-1234).
Host/Client and Master/Slave Definitions and Address
Settings
Reference Drawings:
Host/Client and Master/Slave Definitions ............. Drawing A-168376
4 Column MASC LED Driver Specifications ......... Drawing A-166216
8 Column MASC LED Driver Specifications ......... Drawing A-167237
16 Col. MASC Driver Specifications ..................... Drawing A-184475
One driver at each sign installation is designated as the “host driver”. This driver
receives its signal directly from the controller on the Signal In terminals, and it is the
only driver that is connected to the light/temp sensor. The Signal Out terminals are
used to connect to “client drivers”.
Select the host driver by inserting the Protocol 4 plug into the 5-pin protocol jack
(J20.) For protocol jack location, refer to the driver specifications drawings listed
above.
The 12 V DC terminals connected to the host driver (see “Signal Connections” in
Figure 5) run to the controller junction box. This output is used to power the
DataMaster 100 controller.
All other drivers in the display system are client drivers. These drivers receive signal
from the host driver on the Signal In terminals and can re-drive this signal to other
“client drivers” on the Signal Out terminals.
Some multiple-module signs use “slave displays”. These displays do not contain a
driver and may use either the client or host digit outputs. Refer to Drawing A-
168376 for an illustration of the client/host driver and master/slave display setups.
The address of each driver is set using the address jack (J19), and the address setting
is based on that driver's position in the sign or display system. If a single-line sign is