Owners Manual
2800 Series Marquee
Standard 2800 series marquees are designed to accept commands from a personal computer or a programmable
logic controller via an RS-232, or RS-485 serial communications link. Baud rate is switch selectable from 150bps
to 19200bps, but in all cases a character format of eight data bits, no parity, one stop bit is used.
The PC or PLC controls the 2800 using a simple ASCII protocol, described in this manual. The protocol is
designed to be as simple as possible, and is fully open allowing anyone to easily implement the protocol without
any intellectual property concerns. We encourage our customers to develop their own PC and PLC software
solutions, and we will help your programming staff achieve this goal with example source code, application notes,
and telephone technical support.
1.2 Unpacking the Marquee
Every marquee is carefully tested, both mechanically and electrically, before shipment. Inspect the unit for
damage, which may have occurred in transit. If there is evidence of damage or the marquee fails to operate, file
a claim with the shipper and notify American LED-gible.
®
Save the shipping materials for inspection.
If there are no signs of shipping damage, carefully remove the marquee from the shipping carton or skid. The
marquee is designed to be hung from the ceiling or mounted to a wall. Be sure to locate the marquee where it is
readily visible. The next few sections of the manual will cover power and communications wiring. You may wish
to review these manual sections before permanently mounting the equipment.
1.3 120VAC Power Wiring
After mounting the marquee, 120VAC power wiring will have to be installed. Inspect your unit for 120VAC power
connections. Some units, such as the black anodized aluminum versions come with a 120VAC line cord
attached. Other units such as the industrial steel versions provide 120VAC screw terminals on a DIN rail barrier
inside the enclosure requiring the customer to punch a conduit hole. It is critical that you properly connect earth
ground to the marquee. Failure to do so can result in damage to you PC or PLC serial port.
Page 2 PB-2149-335B
FACTORY WIRING
RS-232 OUT
RS-232 IN
RS-485 -
RS-485 +
SIGNAL GND
120VAC NEUT
120VAC HOT
EARTH GND
LB-2815-006
NEUT
HOT
EARTH
Typical Power Wiring
(70 páginas)
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