SEM-7540LPDN_rev04282008
6
3
2
1
0
7
5
4
V.P.
NORM
OFF
AGC INT
L.L.
BLC
S.AGC
FLC
SEM-7540LPDN
SEM-7540LPDNP
Operational Manual
License Plate Recognition Series
True Day & Night License Plate Capture Camera
z
1/3” Sony Exview CCD
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Sony HQ-1 DSP
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540 TV Lines
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0.05 Lux @ F1.0
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Mechanical IR Cut Filter (ICR)
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Advanced 8-step manual shutter to obtain clear
images of moving vehicles license plates
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Dual Power 12V DC / 24V AC
1
Lens mount
This mount is used to install a CS-mount lens.
CS-adaptor ring is required if using a C mount lens.
2
CS Mount Fixing Screw
Screw for fixing mount and adjusting back focus if needed.
3
Mount adaptor
This adaptor can be attached to either the top or bottom of unit.
4
Auto iris lens connector (4-pin type)
The lens connector supplies the auto-iris lens (not supplied) with
DC power and a video signal or DC control signal.
5
ME/AES Shutter Control
(0)
1/50 (60) sec. (1) FL: 1/120(100) sec.
(2) 1/250 sec.
(3) 1/500 sec.
(4) 1/1000 sec. (5) 1/2000 sec.
(6) 1/4000 sec. (7) 1/10,000 sec.
The fixed shutter speed modes can be applied to capturing moving
objects. Suggestion setting shutter speed is from either 1/250 or
1/500 according to object moving speed and object distance from
camera.
Camera to object moving speed
Shutter
Speed
15~20M
(45~60ft)
20~35M
(60~100ft)
35~60M
(100~180ft)
1/250 sec.
30~60 ,Km/hr
50~80 Km/hr
1/500 sec.
50~80 Km/hr
80~100 Km/hr
80~100 Km/hr
* Aspherical lenses with the aperture of F1.4 or the larger are
recommended.
* The image of the moving object is better to occupy the 80% of
the picture at least.
6
Auto Iris mode selection switch
For switching the output from the auto-iris connector (5). Shutter
speed is fixed at 1/50 sec. when switch is set to DC or VIDEO
position.
DC: To be set when using a non-amp auto-iris lens.
AES: To be set when using AES (Auto Electronic Shutter).
Video: To be set when using an auto-iris lens with build-in amp.
7
DC Level adjustment V.R
Used to adjust video output level of DC driven auto iris lens.
8
B.L.C. (Back light compensation) mode switch
When strong light is present behind the object being photographed,
the object will appear dark. In this case, turn on the BLC.
9
F.L. (Flickerless) mode switch
F.L.: Fixes shutter speed at NTCS: 1/100Sec.; PAL: 1/120Sec.
NOM: Normal position.
PIN NO.
VIDEO
DC
1
DC + 12V
CONTROL -
2 NC CONTROL
+
3
VIDEO SIG
DRIVE +
4 GND DRIVE
-
FEATURES
Please read the Operational Manual
before attempting to use this product.
Night/IR Mode
Day Time Mode
(<4 Lux)
(>7 Lux)
NOMENCLATURE AND FUNCTION
V.P.
NORM
OFF
INT
AGC
BLC
S.AGC
L.L.
FLC
V.P.
L.L.
BLC
OFF NORM AGC INT
S.AGC
FLC
DIMENSIONS (Unit: mm)
