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OHLS / LANE CONTROL SIGN
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The Over Head Lane Control Sign (OHLS) is located on the leading edge of the canopy covering the toll lanes above the center of the lane. The purpose of the OHLS is to indicate to the User whether the toll lane is open for the processing of vehicle or closed. Red full round or red cross is used to signal that the lane is closed, whilst a green Full Round or arrow is used to indicate that the lane is open to traffic.Signs are sufficiently bright and directed to indicate to a motorist, approaching the toll plaza, at a distance of 600 m on a bright cloud free day that the lane is available for use. |
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The following minimum specifications shall be met:
a) Size
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425 mm X 425 mm or 300 mm dia |
| b) Display (closed) |
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Red LED ( Cross ) |
| c) Display (open) |
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Green LED ( Arrow ) |
| d) Cross Sign |
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2 arms of 4 Leds of 550 mm. each |
| e) Arrow Sign |
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2 Arrow head arm 4 leds of 265 mm each 1 arrow Line of 4 Leds of 265 each |
| f) LED |
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5mm in diameter, 8000 MCD |
g) Wavelength
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Red colour 630 Nm Green Colour 526 Nm |
| h) Visibility Range |
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100 m (under extreme weather conditions) 400 m under normal ambient conditions |
| i) Enclosure |
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Polycarbonate plastic or MS for 300 mm dia
& MS powder coated for 425 mm ( weather proof) Front open
Swing type Door for easy maintenance |
j) BORDER
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Black border of 50 mm Max on all 4 sides of sign |
| k) Lens |
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polycarbonate UV stabilised , |
| l) Mounting bracket |
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All made of rust proof material . |
m) LED Pitch
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10 mm |
| n) PCB |
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Glass Epoxy |
| o) Working voltage |
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110 – 270 Vac , 45 – 60 Hz |
| p) Night dimming |
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Yes |
| q) Chain failure |
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No , single Led OFF in chain during Failure |
| r) MTBF |
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100,000 hrs |
| s) MTTR |
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1 hour |
t) LIFE SPAN
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8 YEARS |
| u) Rotation |
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Vertical as desired , Horizontal with help of clamps |
| v) Paint |
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Metal aspect will be powder coated of required colour . |
w) Coating
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In Metal aspect Phospating done prior to powder coating. |
x) Protection
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Surge Protection using MOV & TRANZORB |
| y) Power Consumption |
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20 watts max |
| z) Interfacing details |
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4 Pin connector 1 – Red , 1 Green , 1 common , 1 earth. |
• All LEDS used will Be Identical in Intensity & Wave Length
• Cabinet will securely to mount Desired display PCB & Power supply to make in shock & Vibration Resistant
• Optional Photo sensors on the LCS shall be located so as to account for various directions of shade/
shadow/brightness requiring changes in the luminosity level during the 24 hour operation.
• The LCS will be highly visible within a 30 degree cone centred about the optical axis. This can be assisted by the
vertical tilting and horizontal rotation described below.
• This can be assisted by the vertical tilting and horizontal rotation described below.
• The clamping mechanisms for attaching the LCS to the support structure shall be capable of adjustment of the
tilt / Rotations of the housing as desired without Loosing Its Main Angle View Perpendicular to Lane .
• The housing shall be designed to allow cleaning of the internal surface of the polycarbonate sheets.
• External mounting assemblies including clamps and brackets will be Plastic or MS as required by Client .
• Decrease in luminous intensity of any LED pixel under 24 hour continuous operation WILL not exceed 30% after
one year and 40% after five years.
Protection / safety
The OHLS shall be IP 65 rated.
One led fail will not effect more than 2 % in Intensity
Conformal coating on PCB for moisture protection
Power supply with High Surge suppressions .
Enquiry Form