!2 Day/Night Mode Selector
ture from colour to black-and-white, or in
reverse.
This function switches the condition of pic-
HI: Colour picture switches to black-and-
tures from colour to black and white in low
white pictures at approx. 7 lx with F1.2
light conditions.
lens.
COLOUR FIX: Colour picture reverts to
LOW: Colour picture switches to black-and-
black-and-white picture when an exter-
white pictures at approx. 5 lx with F1.2
nal
day/night
switching
signal
is
lens.
received (refer to Day/Night connec-
The factory default setting is HI.
tions).
Note: When using this unit with infrared rays
!5 Video Output Connector (VIDEO OUT)
or lighting of which colour temperature is
This connector is for connecting with the
3 000 K or less, select this mode without
VIDEO IN connector of the video monitor.
fail, and short-circuit the Day/Night input
Whenever the multiplexed vertical drive (VD2)
signal is supplied to this connector, the cam-
terminals if you select the black-and-
era synchronization mode is automatically set
white picture.
to Vertical Drive.
(The AUTO mode may cause hunting.)
AUTO: The camera selects black-and-white
!6 Power Indicator (POWER)
mode if the picture is dark, or colour
!7 Day/Night Input Terminal
mode if the picture is bright enough.
(DAY/NIGHT IN/GND)
Notes:
This terminal is used for connecting the cam-
• When using this unit with a video servo
era to an external day/night detecting sensor.
control lens, you may not switch from the
Terminals opened: colour picture
black-and-white mode to the colour
Terminals shortened: black-and-white picture
mode depending on lens iris.
!8 AC Inlet Socket
In such a case, operate the lens adjuster
Plug the power cord (supplied as a standard
to open the aperture.
accessory) into this socket and connect it to
• This function may not be activated auto-
an AC outlet.
matically when a backlight or a strong
light source causes excessive contrast
!9 AC/DC Compatible Input Terminal
(DC 12 V IN/AC 24 V IN)
in the picture. In such cases, use the
This terminal is for connecting the 12 V DC or
Day/Night input terminals.
24 V AC power supply cord.
!3 Duration Time Selector
Note: Do not exceed the ratings of the volt-
This selector is available when the Day/night
age or current when connecting the
switch position is 'AUTO'.
external device.
Switching time (5 sec. or 1 minute ) is selec-
table.
Caution: Connect to 12 V DC (10.5 V-16 V) or
!4 BW Level Selector
24 V AC (19.5 V-28 V) class 2 power sup-
Selects the luminance level.
ply only. Make sure to connect the ground-
This selector is available when the Day/night
ing lead to the GND terminal when the
switch position is 'AUTO'.
power is supplied from a 24 V AC power
According to the luminance level, this camera
source.
automatically switches the condition of pic-
CONNECTIONS
A. WV-CP250 (220 V - 240 V AC 50 Hz)
Video Cable
Connect the power cord to an electrical outlet
1. It is recommended to use a monitor whose
of 220V - 240V AC 50Hz.
resolution is at least equal to that of the
Notes:
camera.
• Connect the power cord firmly.
2. The maximum extensible coaxial cable
• The power cord should be long enough
length between the camera and the moni-
for panning and tilting.
tor is shown below.
If the cable is too short, the power cord
plug may be pulled off the camera when
the camera pans or tilts.
Type of
RG-59/U RG-6/U RG-11/U RG-15/U
coaxial cable
(3C-2V)
(5C-2V) (7C-2V)
(10C-2V)
B. WV-CP254E (12 V DC/24 V AC)
Recommended (m)
250
500
600
800
The WV-CP254E has an AC/DC compatible
maximum
cable length
(ft)
825
1 650
1 980
2 640
input terminal. The 12 V DC or 24 V AC power
supply cord can be connected to this termi-
nal. The camera detects the power source
Installation of Auto Iris Lens
automatically.
Connector
1. 12 V DC Power Supply
Install the lens connector (YFE4191J100) when
using a video drive ALC lens.
Connect the power
The installation should be made by qualified
GND
cord to the AC/DC
service personnel or system installers.
compatible
input
+
1-L
Cut the iris control cable at the edge of the lens
terminal on the rear
connector to remove the existing lens connector
2-N
–
panel of the cam-
and then remove the outer cable cover of the sup-
era.
AC 24V IN
plied connector as shown in the diagram.
DC 12V IN
The pin assignment of the lens connector is as fol-
lows:
Resistance of copper wire [at 20 °C (68 °F)]
Pin 1: Power source; +9 V DC, 50 mA max.
Pin 2: Not used
Copper wire
#24
#22
#20
#18
Pin 3: Video signal; 0.7 V[p-p]/40 kΩ
size (AWG)
(0.22mm
) (0.33mm
) (0.52mm
) (0.83mm
)
2
2
2
2
Pin 4: Shield, ground
Resistance
0.078
0.050
0.030
0.018
Ω/m
Rib
Resistance
0.026
0.017
0.010
0.006
Pin 3
Ω/ft
Pin 1
• Calculation of maximum cable length
Pin 4
between camera and power supply
10.8 V DC ≤ VA - (R x 0.42 x L) ≤ 16 V DC
Pin 2
L : Cable length (m)
R : Resistance of copper wire (Ω/m)
Solder the lens cable to the pins of the sup-
V
: DC output voltage of power supply unit
plied connector.
A
− 12
V
A
L standard =
(m)
Mounting the Lens
0.42 x R
− 16
V
Caution:
A
L minimum =
(m)
Before you mount the lens, loosen the focus
0.42 x R
lock knob, and rotate it clockwise until it
− 10.8
V
A
stops. If the ring is not at the end, the inner
L maximum =
(m)
lens or CCD image sensor may be damaged.
0.42 x R
q Mount the lens by turning it clockwise on the
2. 24 V AC Power Supply
lens mount of the camera.
Connect the power cable to the AC/DC com-
Note: When mounting the C-mount lens on
patible input terminal on the rear panel of the
the camera, mount the C-mount adapter
camera.
by rotating it clockwise in advance.
GND
w Connect the lens cable to the auto iris lens
GND
connector on the side of the camera.
1-L
+
2-N
–
Lens mount
C-mount adapter
AC 24V IN
(Option)
DC 12V IN
W V
-
C P 2
C P 2
Recommended wire gauge sizes for 24 V AC line
5 0
5 0
w
Copper wire
#24
#22
#20
#18
q
size (AWG)
(0.22mm
)
(0.33mm
)
(0.52mm
)
(0.83mm
)
2
2
2
2
(m)
95
150
255
425
Length
of cable
Focus lock
(Approx.)
(ft)
314
495
842
1 403
knob
Be sure to use a 12 V DC or 24 V AC power sup-
ply device that complied with safety standards.