Operation Manual
20E709TDN3/21E709TDN3
20E709TDN3/21E709TDN3
BOX CONTENTS
1. 20E709TDN3
(NTSC)
OR 21E709TDN3
(PAL)
camera
2. DC Iris connector
3. Operation manual
SAFEGUARDS & WARNINGS
1. Read instructions before
operating camera.
2. Avoid mounting in direct sunlight.
3. Installation and repair should be
undertaken by authorized personnel
only.
INSTALLATION TIPS
If the camera is to be mounted
outdoors, or in hot, humid, or otherwise
harsh environments, a secondary enclosure
should be used.
Controls
TDN (True Day/Night Feature)
The TDN feature functions automatically to
reduce noise and add sensitivity at low
light levels. A solenoid triggers to remove
the IR cut filter. The color camera switches
to a monochrome mode to optimize low
light level performance.
BACK FOCUS ADJUSTMENT
Adjust the back focus only if the lens is not
operating within its specified focal range
(i.e. 1.0m ~ infinity).
1. Loosen the two allen head screws on
the lens collar using a allen key (not
provided).
2. To properly back focus the lens, turn
the back focus ring counter clockwise
to reduce the focal point, or clockwise
to increase the focal point, until the
desired focus is attained.
3. Tighten the two allen head screws with
a allen key (not provided).
CONNECTORS AND CONTROLS
Connectors
1. CVBS Output
BNC connector for composite video (CVBS)
signal output.
2. A-IRIS - Auto Iris Connector
This camera works with a DC auto iris lens
or a video lens. Please refer to the pin
assignment when connecting the auto iris
lens.
3. 12VDC / 24VAC Power Terminal
Video Driven (AI)
1. +8.5 V DC
2. NC
3. Video signal
4. GND
Pin Assignment
04/21/07 INS-20E709TDN3 Rev
C
A-IRIS
1
2
3
4
DC Driven (DC)
1. Control -
2. C
3. Drive +
4. GND
K
J
F
3
2
1
A
B
C
D
E
A. AGC
For adjusting the sensitivity of the camera.
ON
Default setting
OFF
Set this when there is excessive noise at low
light levels
B. White Balance
ON
(AWC) – for light source below 2500K and
over 9500K color temp.
OFF
(ATW) - for light source between 2500K and
over 9500K of fluorescent lamp or
incandescent light
C. Flicker
Correct screen flickering that occurs when positioned
under fluorescent lights that use a 50Hz power supply
frequency.
ON
Under 50Hz fluorescent lights
OFF
Default setting
D. Backlight Compensation
ON
Set this when scene behind object is bright
OFF
Default setting
E. Synchronization
ON
(INT) - Internal mode
OFF
(L/L) - Line lock mode
F. ALC
If the entire image is too dark or bright, or the backlight
compensation is not correct even after it is set “ON”, you
need to adjust the ALC level.
(LOW)
Closes the lens iris, making the entire image
darker
(HIGH)
Opens the lens iris, making the entire image
brighter
J. Iris Mode
Video
Video lens
DC
DC-type auto-iris lens
EE
The default setting when a fixed iris lens is
installed
K. Line Lock Control
Line lock phase control switch.
