Daktronics Fuelight FL-2109 Series Petroleum Price Displays - Manual (Page 37)

Glossary 31
Glossary
Cabinet: The metal body of a display.
Client Driver: All drivers not designated as the host driver. The host receiver sends the line
information out to the clients. Each client should use specific line and face numbers (“address”).
Digit Circuit Board: The circuit board on which the LEDs for the entire digit are mounted.
Digit Panel: Metal panel on which the digit circuit boards or digit segments are mounted. The digit
panel must be opened to access the display’s internal components.
Digit Segment: A group of LEDs in a digit that function as a single circuit. On 24” and larger digits,
each segment is an individual circuit board.
DM-100 Controller: A component used to transmit price data to displays operating with FLR-1500
and FLD-2000 Control Kits.
Driver: The circuit in a display that receives signal from the controller in order to operate the digits,
causing the correct numbers to be shown.
Host Driver: The driver that receives signal from the controller, and transmits it to the other drivers
in the sign. On radio-controlled displays, the host driver is connected to the radio receiver. On direct-
wired displays, the host driver is wired to the control J box.
Light Emitting Diode (LED): A low energy, high intensity lighting unit used in Fuelight ™ displays.
RC-50 Transmitter: A component used to transmit price data to displays operating with FLR-100
Control Kits.
RC-100 Transmitter: A component used to transmit price data to displays operating with FLR-500
Control Kits.
Signal Surge Suppression Card: An electrical device used to protect equipment from high-voltage
surges in the signal line.
Transformer: A device that takes in 120 VAC and steps in down to 20 VAC for use by the driver.