Daktronics KE-1010-7.6-RG - Manual (Page 9)

Daktronics KE-1010 displays are all aluminum construction and may consist of
separate sections. Tickers are available in tri-color (red, green and amber) characters.
Messages appearing on the display scroll from the right side of the sign to the left.
Two types of display sections are available called: “master” and “echo.” Master
displays contain a controller board, which receives information from the control
computer ticker feed. “Echo” displays do not contain a controller board and require a
“master” display to operate.
If the display is built from multiple sections, signal from the left module of the
master section is then routed through a ribbon cable to the shift card of the first
“echo” section. Signal from the left module of this “echo” is sent to the shift card of
the next “echo” section and so on.
The DAKTicker model numbers are described as follows: KE-1010-HHxCCC-
7.62-RG
KE-1010 = Indoor Ticker Display
HH = The number of pixels high (16 or 24)
CCC = The number of columns wide
(200 is 5 feet long, 240 is 6 feet long, 320 is 8 feet
long, and 400 is 10 feet long)
7.62 = Pixel spacing in millimeters
RG = Tri-Color (Red, Green, and Amber)
1.3 Network Concepts
The computer outputs RS232 ticker information which is routed to the ticker via one
of the two network systems available: RS422 or Ethernet. Signal is sent first to the
controller board inside the “master” section of the ticker. The controller board
processes the data and relays it to the shift card. The shift card lights the appropriate
LEDs accordingly.
RS422 Network
RS422 (EIA/TIA-422-B) is a standard communication interface that utilizes a
differential balanced transmission scheme that uses a typical maximum cable length
of 1.2km (approximately 4,000 feet). A signal converter is needed to convert the
computer's RS232 to RS422. Refer to Section 3 for more information.
Ethernet Network
The Ethernet network uses copper cable and is a standard communication interface
that utilizes a local area network (LAN). Utilizing Cat-5/Cat-5E cable this
transmission scheme has a typical maximum cable length of 100 meters
(approximately 330 feet) from an Ethernet hub or switch. Refer to Section 3 for
more information.
Introduction
1-3