Pole height:
6 m
; standard lane width:
3.75 m
The
checkpoint camera
must be installed
above the center
of
all lanes to be detected
.
The
radar detector
is installed above the
center of each lane
.
Camera Type
Camera Model
Number of Lanes Detected
Lens Configuration
9-megapixel super low-
light checkpoint camera
X2391-20-T
X2391-10-TL
X2391-20-TL
M2391-10-TL
2 or 3
2 lanes (in-vehicle target with resolution of at least 80 pixels):
Lens with 50 mm focal length
20 mm (used for large-sized high-speed vehicles occupying lanes)
3 lanes (obscure in-vehicle target):
Lens with 25 mm focal length
Distance from the
strobe light
to the
camera
: ≥
2 m
Distance from the
flash light
to the
camera
: ≥
5 m
Distance from the
smart LED illuminator
to the
camera
: ≥
4 m
Distance from the
three-in-one intelligent traffic illuminator
to the
camera
: ≥
4 m
This document uses an X2391-20-T camera as an example.
A 9-megapixel super low-light checkpoint camera has four groups of RS-485 ports (D1+/D1-, D2+/D2-, D3+/D3-, and D4+/D4-). Both three-in-one intelligent traffic
illuminators (or smart LED illuminators) and radar detectors need to connect to RS-485 ports. In three-lane or four-lane detection schemes, three radar detectors are
used to measure vehicle speed and three illuminators are used to compensate light during in-vehicle target capture. However, there are only four groups of RS-485
ports. If both radar detectors and three-in-one intelligent traffic illuminators (or smart LED illuminators) need to be connected, the two-lane detection scheme is
recommended. If RS-485 loop vehicle detectors are used, the number of RS-485 ports may also be insufficient.
Camera models and matching detection scenes
Adjust the Lens
Install Illuminators
Adjust the Illuminator
Light Spot
Determine Scenario
Requirements
Install and Adjust
Radar Detectors
Camera and Illuminator Installation Requirements
3
