Glossary 35
Glossary:
The following list includes some of the more commonly used terms when referring to these displays. Because
Daktronics occasionally alters standard design to meet customer needs, the actual display design may vary slightly
from the illustrations. This is only a brief overview. Refer to
for additional information on maintaining the
various display components.
Client:
Receives signal from the host driver on the Signal IN terminals. These drivers can re-drive signal to other
client drivers.
DataMaster Controller (DM-100):
The handheld keypad device used to set the time, date, hold times, dimming etc.
on the DataTime
®
for more information on the DataMaster controller.
Display Address:
An identification number assigned to each driver in a network. The address is set using an
8-position binary switch. For single-line signs such as a Time & Temp display, the address will typically be “1.” The
address will be displayed each time the display powers up.
Digit Circuit Board:
The board mounted to the back of a digit panel and containing the LEDs. It can be made up of an
entire digit or as individual segments of a digit.
Host:
Contains the driver which relays signal directly from the DataMaster controller on its Signal IN terminals. It is
the only driver connected to the temperature/photo sensor. The Signal OUT terminals are used to connect to client
driver. The host driver is selected by inserting the Protocol 4 plug into the protocol jack.
Light emitting diode (LED):
High-intensity, low-energy lighting units.
Power Supply:
Converts AC line voltage from the load center to low DC voltage for one or more digit circuit boards.
Protocol plug:
A plug inserted in the 5-pin protocol jack to select the host driver for a set of host-client displays.
