The Lane Control Unit, LCU, was originally designed for the Texas Department of Transportation in Austin and has several advanced features that allows for a lower cost of installation and on-going maintenance cost when compared to the fiber optic halogen signals supplied by competitors for this application. The USA Signal product has a 900 Mhz wireless communications interface which reduces the need for a controller and AC and line switches normally deployed in this type of installation. With the redundant power supply architecture the reliability of this USA Signal product allows for an industry long 6 year warranty to be offered and also increases safety where the product is installed.
FEATURES & BENEFITS :
LED based product which offers considerable energy power savings and reliability over fiber optic halogen signals
5 LED symbols: Red X, Yellow X, Down Green Arrow, Down Yellow Arrow, Left Corner Yellow Arrow, Right Corner Yellow Arrow
Easily “Retrofitted” into existing installation where fiber optic halogen signals have failed
Interfaces to any industry controller
Can reduce cost 30 to 40% in “new installation” initial cost when compared to fiber optic halogen signal normal installations
The electronics are housed in an enclosure that is convection cooled, which keeps the electronics operating below specification requirements of 74 deg. Celsius
Dimming Control for Night Operation per ITE specification
Separate convection cooled watertight electronic cabinet to house all electronics
Electronics cabinet can be easily replaced without removing complete sign enclosure from intersection pole or bridge railing
Meets ITE VTSCH-STD Part 2 Specification for Chromaticity
Operating Temperature Range: - 40 to + 74 deg. Celsius
Operating Voltage: AC Voltage: 80 to 135 V @ 60Hz AC; DC Voltage: 35 to 60 VDC
Meets or Exceeds ITE VTSCH-STD Part 2 Specification for Luminous Intensity
Meets NEMA STD 250 Type 4 - 1991 Specification for Moisture Resistance
Meets Mil-STD-883 Method 2007 Specification for Mechanical Vibration
Meets FCC title 47 Sub. B Sec 15 Specification for Electronic Noise
Exceeds ITE VTSCH-STD Part 2 Specification for Transient Voltage Protection
Meets NEMA TS-2-1992 Specification for Controller Compatibility
OPTIONAL FEATURES:
Self-Kill: Meets the ITE VTSCH-STD Part 2 Specification for "Failed State Impedance" Option
Night Dimming for Red & Green Signals: Meets ITE VTSCH-STD Part 2 Specification for Dimming Option
Communications:
RS 232/485 back to the controller
900Mhz radio to the ITIS S.A.P.S. unit (see ITIS Section for information on S.A.P.S.)
900 Mhz radio communications to a radio receiver installed in the intersection controller
These communication options allow for each signal with this option installed to communicate it's ongoing operational status to a central office database. This can be done through the USA Signal ITIS system S.A.P.S. unit or through the intersection controller if it has the I/O capability. When included in a USA Signal ITIS the software is provided as part of the system that lest the DOT management see action day to day status of all signals installed. With this system such key items as scheduling maintenance for signals that have degraded past the ITE light output specification can be done in a "real-time" mode.
