JVC Security Camera VN H257U User Manual

SAFETY PRECAUTIONS  
FOR USA  
This device complies with Part 15 of the FCC Rules. Operation  
is subject to the following two conditions: (1) This device may  
not cause harmful interference, and (2) this device must accept  
any interference received, including interference that may  
cause undesired operation.  
These are general IMPORTANT SAFEGUARDS and  
certain items may not apply to all appliances.  
FIXED HD IP DOME CAMERA  
Instructions (Installation)  
VN-H257U  
VN-H237U  
IMPORTANT SAFEGUARDS  
INFORMATION (FOR CANADA)  
1. Read all of these instructions.  
2. Save these instructions for later use.  
RENSEIGNEMENT (POUR CANADA)  
3. All warnings on the product and in the operating instructions  
should be adhered to.  
4. Unplug this appliance system from the wall outlet before  
cleaning. Do not use liquid cleaners or aerosol cleaners. Use a  
damp cloth for cleaning.  
This Class A digital apparatus complies with Canadian  
ICES-003.  
Cet appareil num rique de la Class A est conforme á la  
norme NMB-003 du Canada.  
5. Do not use attachments not recommended by the appliance  
manufacturer as they may cause hazards.  
6. Do not use this appliance near water - for example, near  
a bathtub, washbowl, kitchen sink, or laundry tub, in a wet  
basement, or near a swimming pool, etc.  
7. Do not place this appliance on an  
unstable cart, stand, or table. The  
appliance may fall, causing serious  
injury to a child or adult, and serious  
damage to the appliance. Use only with  
a cart or stand recommended by the  
manufacturer, or sold with the appliance.  
Wall or shelf mounting should follow the  
manufacturer’s instructions, and should  
use a mounting kit approved by the  
Due to design modifications, data given in this instruction  
book are subject to possible change without prior notice.  
For Customer Use:  
Enter below the Model No. which is located  
on the body.  
WARNING  
TO REDUCE THE RISK OF FIRE OR ELECTRIC  
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN  
OR MOISTURE.  
* The VN-H237U camera is shown in the illustration.  
Retain this information for future reference.  
Thank you for purchasing this product.  
Before operating this unit, please read the instructions carefully  
to ensure the best possible performance.  
Model No.  
Serial No.  
AVERTISSEMENT  
POUR EVITER LES RISQUES D'INCENDIE OU  
D'ELECTROCUTION, NE PAS EXPOSER L'APPAREIL A  
L'HUMIDITE OU A LA PLUIE.  
manufacturer.  
The standard camera installation procedure can be found on the back side of this page.  
An appliance and cart combination should be moved with care.  
Quick stops, excessive force, and uneven surfaces may cause  
the appliance and cart combination to overturn.  
8. Slots and openings in the cabinet and the back or bottom are  
provided for ventilation, and to insure reliable operation of the  
appliance and to protect it from overheating, these openings  
must not be blocked or covered. The openings should never be  
blocked by placing the appliance on a bed, sofa, rug, or other  
similar surface. This appliance should never be placed near  
or over a radiator or heat register. This appliance should not  
be placed in a built-in installation such as a bookcase unless  
proper ventilation is provided.  
9. This appliance should be operated only from the type of power  
source indicated on the marking label. If you are not sure of  
the type of power supplied to your home, consult your dealer or  
local power company. For appliance designed to operate from  
battery power, refer to the operating instructions.  
10.For added protection for this product during a lightning storm,  
or when it is left unattended and unused for long periods of  
time, unplug it from the wall outlet and disconnect the antenna  
or cable system. This will prevent damage to the product due to  
lightning and power-line surges.  
FOR EUROPE  
© 2012 JVC KENWOOD Corporation  
LST1234-001D  
WARNING  
This is a Class A product. In a domestic environment this  
product may cause radio interference in which case the  
user may be required to take adequate measures.  
Safety precautions  
Dear Customer  
The power rating is AC 24 V, 50/60 Hz/PoE (VN-H257U) or PoE (VN-H237U). Use the correct voltage.  
Always use the AC 24 V power source that is insulated from the primary power supply. (VN-H257U)  
A level of supplied power that exceeds the ratings may result in failures, smoke or fire. If the camera breaks  
down, turn off the power and contact our service center immediately.  
If a level of power that exceeds the ratings is supplied, the internal components may be damaged even if no  
abnormalities are observed in the appearance and/or operation of the camera. Contact our service center  
immediately to arrange for an inspection (charged separately).  
This apparatus is in conformance with the valid European  
directives and standards regarding electromagnetic  
compatibility and electrical safety.  
European representative of JVC KENWOOD Corporation is:  
JVC Technical Services Europe GmbH  
Postfach 10 05 04  
61145 Friedberg  
Germany  
Sehr geehrter Kunde, sehr geehrte Kundin, dieses Gerät  
stimmt mit den gültigen europäischen Richtlinien und Normen  
bezüglich elektromagnetischer Verträglichkeit und electrischer  
Sicherheit überein.  
Die europäische Vertretung für die JVC KENWOOD  
Corporation ist:  
JVC Technical Services Europe GmbH  
Postfach 10 05 04  
61145 Friedberg  
Attachments and accessories  
11. Do not allow anything to rest on the power cord. Do not locate  
this appliance where the cord will be abused by persons  
walking on it.  
12.Follow all warnings and instructions marked on the appliance.  
13.Do not overload wall outlets and extension cords as this can  
result in fire or electric shock.  
Instructions.......................................................2  
CD-ROM...........................................................1  
WARRANTY CARD (For USA).........................1  
SCREW (M2)....................................................2  
Deutschland  
14.Never push objects of any kind into this appliance through  
cabinet slots as they may touch dangerous voltage points or  
short out parts that could result in a fire or electric shock. Never  
spill liquid of any kind on the appliance.  
Information for Users on Disposal of Old Equipment  
Operating Precautions  
[European Union]  
15.Do not attempt to service this appliance yourself as opening  
or removing covers may expose you to dangerous voltage or  
other hazards. Refer all servicing to qualified service personnel.  
16.Unplug this appliance from the wall outlet and refer servicing to  
qualified service personnel under the following conditions:  
a. When the power cord or plug is damaged or frayed.  
b. If liquid has been spilled into the appliance.  
c. If the appliance has been exposed to rain or water.  
d. If the appliance does not operate normally by following  
the operating instructions. Adjust only those controls that  
are covered by the operating instructions as improper  
adjustment of other controls may result in damage and will  
often require extensive work by a qualified technician to  
restore the appliance to normal operation.  
Storage and Operating Environment  
This camera has been designed for indoor use. It  
cannot be used outdoors.  
Disclaimer  
This symbol indicates that the electrical and  
electronic equipment should not be disposed as  
general household waste at its end-of-life.  
Instead, the product should be handed over to  
the applicable collection point for the recycling  
of electrical and electronic equipment for proper  
treatment, recovery and recycling in accordance with  
your national legislation.  
The motion detection feature is not a feature to prevent  
theft or fire. Our company shall not be liable for any  
loss or damage resulting from the use of this feature.  
Do not install the camera in the following  
environments.  
We shall not be responsible for any loss or damage  
caused in the event of privacy invasion as a result of  
camera footage created by this product.  
Doing so may result in malfunctions or failure.  
• Hot or cold locations beyond ambient temperature  
range (-10 °C to 50 °C).  
• Locations beyond the allowable operating humidity  
range (20 %RH to 90 %RH) (no condensation  
allowed).  
• Near equipment that emits strong magnetic fields,  
such as transformers or motors.  
• Near equipment that emits radio waves, such as  
transceivers and mobile phones.  
• Locations in which excessive dust or sand exist.  
• Locations that are subject to vibration.  
• Locations prone to moisture such as sides of  
windows.  
• Locations that may contain steam or oil, such as  
kitchens.  
• Locations that are subject to radiation emissions,  
X-rays or corrosive gases.  
• Locations where chemicals are used, such as  
swimming pools.  
By disposing of this product correctly, you will help  
to conserve natural resources and will help prevent  
Attention:  
Maintenance  
Turn off the power before performing maintenance.  
potential negative effects on the environment and  
This symbol  
human health which could otherwise be caused by  
is only valid in  
inappropriate waste handling of this product. For  
the European  
Wipe off dirt on the dome cover with a lens-cleaning  
cloth (or soft cloth). For dirt that cannot be easily  
removed, wipe using a neutral detergent diluted with  
water. Following that, wipe with a dry cloth. Do not use  
thinner or benzene. The surface of the dome cover  
may dissolve or fog up.  
more information about collection point and recycling  
Union.  
of this product, please contact your local municipal  
e. If the appliance has been dropped or the cabinet has been  
damaged.  
f. When the appliance exhibits a distinct change in  
performance  
office, your household waste disposal service or the  
shop where you purchased the product. Penalties  
may be applicable for incorrect disposal of this  
waste, in accordance with national legislation.  
- this indicates a need for service.  
(Business users)  
17.When replacement parts are required, be sure the service  
technician has used replacement parts specified by the  
manufacturer that have the same characteristics as the original  
part. Unauthorized substitutions may result in fire, electric  
shock or other hazards.  
18.Upon completion of any service or repairs to this appliance,  
ask the service technician to perform routine safety checks to  
determine that the appliance is in safe operating condition.  
If you wish to dispose of this product, please visit our web  
back of the product.  
Saving Energy  
If the camera is not going to be used for a long period  
of time, turn off the power or the system for safety  
reasons and to conserve energy.  
[Other Countries outside the European Union]  
If you wish to dispose of this product, please do so in  
accordance with applicable national legislation or other  
rules in your country for the treatment of old electrical and  
electronic equipment.  
Others  
This camera has a built-in AGC circuit. Setting AGC  
to "Mid" or "High" increases the sensitivity of a dark  
image, and the screen may appear grainy. This is not  
a malfunction.  
FOR USA AND CANADA  
This installation should be made by a qualified service  
person and should conform to all local codes.  
Use of this camera and cables connected to this  
camera at locations where strong electrical or  
magnetic waves are generated (e.g. near a radio, TV,  
transformer, monitor, etc.) may result in images being  
affected by noise interference or colors being changed.  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
When this camera is used with the white balance set to  
"ATW" (Auto Tracking White Balance), the color tone  
of some objects may differ slightly from the actual color  
due to the principle of the automatic tracking white  
balance circuit. This is not a malfunction.  
This installation shall be in accordance with the  
National Electrical Code, ANSI/NFPA 70. The unit is to  
be powered by a Listed Class 2 power supply or using  
the PoE.  
CAUTION: TO REDUCE THE RISK OF ELECTRICK  
SHOCK. DO NOT REMOVE COVER  
Do not install this camera at locations where cold  
air is circulated, such as near the air vent of an air  
conditioner. The drastic change in temperature may  
fog up the dome cover.  
The AC 24 V power supply should conform to the  
following: Class 2 only (For USA), Isolated power  
supply only (For Europe and other).  
(OR BACK). NO USER-SERVICEABLE  
PARTS INSIDE. REFER SERVICING TO  
QUALIFIED SERVICE PERSONNEL.  
For regions with a commercial power frequency of  
50 Hz, switch to the Flickerless mode during use  
under fluorescent lights (excluding inverter lighting  
equipment) to prevent flickers.  
Any Mention in this manual of Alarm inputs have not  
been evaluated by UL to be used for Burglar Alarm  
Functionality.  
The lightning flash wish arrowhead symbol, within  
an equilateral triangle is intended to alert the  
user to the presence of uninsulated "dangerous  
voltage" within the product's enclosure that age"  
within the product's enclosure that may be of  
sufficient magnitude to constitute a risk of electric  
shock to persons.  
Do not install this camera at a location that traps heat.  
This camera discharges heat from the surface of the  
main unit. Do not install it at locations that may trap  
heat, such as wall corners.  
When the electronic sensitivity enhancement feature  
is enabled, the screen may appear grainy and more  
white spots may appear because the sensitivity has  
increased. However, this is not a malfunction.  
Special technique is required when installing this  
product.  
Please refer to your dealer for installation.  
Handling Precautions  
If the power supply voltage is momentarily cut off or  
reduced due to lightning or the power supply to the  
air conditioner being turned on, the image may be  
disrupted or noise interference may occur.  
Rating label is pasted at the bottom or top of the  
camera unit.  
Do not block the vents.  
The exclamation point within an equilateral  
triangle is intended to alert the user to  
the presence of important operating and  
maintenance (servicing) instructions in the  
literature accompanying the appliance.  
Inadequate heat ventilation may cause this camera to  
malfunction. Be sure not to block the vents around the  
camera.  
JVC is not liable for any compensation if you drop the  
camera due to insecure mounting by not following the  
installation description. Pay careful attention during  
installation.  
The rotation angle of this camera is increased to  
enable installation at a wider variety of locations. When  
the lens is at the wide-angle position, and tilted at an  
angle close to +/-80 degrees, a part of the camera  
may come into view on the screen depending on the  
rotation angle. When this occurs, adjust the field angle  
accordingly.  
Copyright Protection  
Information for USA  
With the exception of the user being the copyright  
holder or when permission such as for duplication has  
been granted by the copyright holder, permission is  
required in principle to duplicate, modify or transmit  
copyrighted material.  
This device complies with part 15 of the FCC Rules. Changes  
or modifications not approved by JVC could void the user's  
authority to operate the equipment. This equipment has  
been tested and found to comply with the limits for a Class A  
digital device, pursuant to Part 15 of the FCC Rules. These  
limits are designed to provide reasonable protection against  
harmful interference when the equipment is operated in a  
commercial environment. This equipment generates, uses, and  
can radiate radio frequency energy and, if not installed and  
used in accordance with the instruction manual, may cause  
harmful interference to radio communications. Operation of  
this equipment in a residential area is likely to cause harmful  
interference in which case the user will be required to correct  
the interference at his own expense.  
When mounting this product to a ceiling or wall, select  
a location strong enough to support the weight of this  
camera. If the location is not strong enough to support  
the weight, be sure to reinforce the ceiling or wall  
before installation.  
Unauthorized duplication, modification or transmission  
of copyrighted material may constitute a copyright  
infringement, and the user may be liable to pay  
compensation for damages. When using copyrighted  
material, be sure to check the license agreement or  
the copyrighted material thoroughly.  
When using multicast, make use of an IGMPv2-  
compliant network switch.  
The camera may drop if the mounting screws are  
not tightened securely. Check that the screws are  
tightened appropriately and securely.  
Some hubs/switches of products that are equipped  
with intelligent features may include a broadcast/  
multicast suppression function. If this function is  
enabled, viewing of multicast images on this camera  
may fail.  
Do not install the camera near lighting fixtures of high  
temperature, such as spot lights. It might result in  
failure or fires.  
When rights or rights holders are involved with regard  
to the targeted subject of duplication, permission may  
be required for shooting or using (processing) it. Be  
sure to check the licensing conditions thoroughly.  
CAUTION  
It should be noted that it may be unlawful to re-record  
pre-recorded tapes, records, or discs without the  
consent of the owner of copyright in the sound or video  
recording, broadcast or cable program and in any  
literary, dramatic musical, or artistic work embodied  
therein.  
It is recommended to use shielded LAN cables for  
connection with this camera. The safety and reliability  
of this camera has been checked by using shielded  
cables.  
CHANGES OR MODIFICATIONS NOT APPROVED BY JVC  
COULD VOID USER’S AUTHORITY TO OPERATE THE  
EQUIPMENT.  
Use of recorded materials without first gaining the prior  
consent of the author is forbidden under copyright law  
except in cases of personal use.  
Under halogen lamps, light bulbs and other light  
sources that emit strong infrared light, black objects  
may look almost purple in the recording. It is an  
inherent characteristic of this camera and not a defect.  
The latest version  
Please visit V.NETWORKS web site to check the  
latest firmware at  
index.html  
During viewing using the Built-in Viewer, the video  
and audio may appear out of sync. This is not a  
malfunction (VN-H257U).  
 
1
Continued overleaf  
2 Roughly adjust the focus.  
Adjust the field angle and focus  
1 Lift the focusing gear control, release the catch from position A  
Turn on the power  
1 Adjust the zoom ratio.  
and insert it into position B to disengage the gear.  
Loosen the fastening screw of the zoom adjustment ring, then  
move the ring to the right and left to adjust the zoom ratio. After  
completing the adjustment, tighten the setscrew.  
Note  
If you open the gear beyond position B, the gear shaft is  
released from the bearing (C in the figure on the left) to prevent  
it from being damaged. In this case, correctly re-insert the shaft  
into bearing A (the original position).  
After all connections and installations are completed,  
turn on the power of the unit. When the camera is  
booting, the [STATUS] indicator lights up orange. It lights  
up green after booting.  
Note  
• Applying force to the zoom adjustment ring while adjusting the  
image size may result in damage.  
Moving the zoom adjustment ring beyond its adjustable range  
may cause the performance of this camera to deteriorate.  
VN-H257U camera  
2 Rotate the lens section at the tip to roughly adjust the focus.  
2
Lens section  
Image Adjustment  
VN-H257U camera  
VN-H237U camera  
Focusing ring  
Adjust images by watching them on the monitor.  
Knob  
Knob  
Note  
*The illustration of the camera directly mounted on the ceiling is used.  
The same procedures are performed regardless of the camera is  
embedded into the ceiling or mounted on the wall with the cables  
pulled out.  
Catches  
Catches  
• Do not hold the lens section when adjusting the direction of the  
camera. The lens section may be damaged if you apply force to  
it. Also, exercise care not to leave your finger prints on the lens  
when you rotate the lens section.  
Zoom adjustment ring  
Zoom adjustment ring  
B
A
B
A
3 Return the catch of the focus adjustment gear B to position A  
shown in the diagram, and then return the focus adjustment  
gear to its original position.  
Note  
• Before touching the camera body, make sure you touch the metal  
surface of the [MONITOR] terminal first to discharge any static  
electricity from your body.  
VN-H237U camera  
2 Loosen the focusing ring setscrew and roughly focus the image  
Otherwise, static electricity may cause the camera to malfunction.  
by rotating the ring to the right or left.  
3 Return the catch of the focus adjustment gear B to position A  
shown in the diagram, and then return the focus adjustment  
gear to its original position.  
C
Focus adjustment gear  
C
Focus adjustment gear  
Adjust the shooting direction of the  
One base  
pitch  
[MONITOR] terminal  
camera  
3 Finely adjust the focus.  
Dome cover  
setscrews  
1 Connect a test monitor to the [MONITOR] terminal.  
VN-H257U camera  
1 Connect the camera to a computer, and open the Built-in Viewer.  
• For details about computer settings and methods for  
connecting the camera to a computer, refer to “Instructions (IP  
Address Settings)”.  
2 Select “Day Focus Adjust” from the “Focus” page in “Advanced  
Settings”.  
[STATUS] indicator  
[MONITOR] selection switch  
NTSC  
PAL  
[RESET] button  
• The focus position is automatically adjusted.  
• For details on focus, refer to “Instructions (Setting)” on the  
supplied CD-ROM.  
[MONITOR] terminal  
You can also adjust the focus after mounting the dome cover.  
VN-H237U camera  
1 Press the [FOCUS ASSIST] button.  
• The camera enters Focus Assist mode, and [STATUS]  
indicator flashes green and orange alternately.  
• The image is sharpened with the opening of the aperture.  
Tilt fastening  
screw  
2 Finely adjust the camera focus by rotating the focus adjustment  
gear knob to the right or left.  
Protruding part  
75 Ω  
termination  
3 Rotate the focus adjustment gear knob for approximately one  
base pitch in the direction of the arrow shown in the figure.  
This is to correct the focus shift when mounting the dome cover.  
4 Remove the protective sheet of the dome cover, and check the  
camera focus by holding the dome cover over the lens.  
Test monitor  
After checking, replace the protective sheet on the dome cover.  
Memo  
Dome cover  
protective sheet  
5
Tighten the setscrew of the focus adjustment ring and fix the focus.  
The camera has the 16:9 aspect ratio. If the test monitor has the 4:3 aspect  
ratio, the camera image is converted into the 4:3 ratio and displayed.  
6 Press the [FOCUS ASSIST] button.  
• The Focus Assist mode will be released.  
• [The STATUS] indicator lights up green.  
• Set to "NTSC" when connecting to an NTSC monitor, or set to "PAL"  
when connecting to a PAL monitor, then hold down the [RESET]  
button for approximately three seconds to reboot. While the camera  
is rebooting, the [STATUS] indicator lights up orange.  
Note  
• It may be difficult to acquire focus automatically when shooting  
the following places.  
If you keep pressing the [RESET] button for more than 5s, the camera  
enters the Service mode. Do not press this button for more than 5s.  
Too bright places.  
Too dark places.  
– Places where brightness always changes. (e.g. a light is  
flickering; people are passing by in front of the camera.)  
– Places where there is little contrast of brightness.  
– Places where there are repeating patterns of vertical stripes.  
2 Adjust the shooting direction of the camera.  
Dome cover  
• Before you start, remove the light-blue protection tape.  
• Adjust the pan, tilt and rotation controls of the cameras to face  
the lens towards the subject.  
Memo  
• The focus position can be manually adjusted by using the Built-  
in Viewer installed on your computer connected to the camera.  
(“Instructions (Setting)”) Resort to this method if it is difficult  
to acquire focus automatically.  
After adjusting the field angle, tighten the tilt fastening screw to  
secure the camera so that its field angle does not go out of alignment.  
Note  
• Moving the pan, tilt or rotation beyond the adjustment range may  
damage this unit.  
• As the tilt and rotation range of this unit is wide, part of this unit may  
be reflected in the shooting screen depending on the field angle and  
direction.  
• Do not hold the lens section when adjusting the direction of pan, tilt  
or rotation. The lens section may be damaged if you apply force to it.  
Mount the dome cover  
When you mount the dome cover, make sure that no cables are connected to the [MONITOR] terminal.  
Mount the inner dome  
Mount the dome cover and remove  
the dome cover protective sheet  
Note  
Pan: ± 175°  
Engage the inner dome slot with the projection, and  
mount the dome by rotating it in the direction of the  
arrow. Press the inner dome in until you hear the click of  
the catch.  
If you remove the dome cover again after installing it, the field angle may  
shift. If the field angle has shifted, adjust the focus and the field angle again.  
• Check to ensure that the dome cover is firmly mounted. The cover  
may fall off if it is not mounted correctly.  
Rotation: ± 100°  
Tilt: ± 80°  
Align the position aligning marks (two locations) on the  
camera body and the dome cover, mount the dome  
cover and secure the dome cover with screws.  
Shooting direction mark  
Catches  
(two locations)  
Protection tape  
Pan center mark  
Position aligning mark  
Protruding part  
Rotation center mark  
Mounting  
position of a  
screw (supplied)  
Inner  
depression  
Rotation  
Knob (two locations)  
Memo  
• Rotate the lens in the pan, rotation and tilt directions ± 175°, ± 100°  
and ± 80° respectively from the position aligned with the camera's  
shooting direction mark, pan center mark and rotation center mark.  
Be sure to hold the rotation control and adjust the rotation without  
holding the lens section.  
Inner dome  
Dome cover protective sheet  
Memo  
• When you mount the camera body, align the shooting direction mark  
within the shooting range.  
Secure the dome cover using two dome cover setscrews as required.  
 
3
Continued overleaf  
Cables  
Troubleshooting  
Symptom  
Images on the monitor are dark  
Causes and Countermeasures  
If you connect the monitor output (RCA terminal) inside the dome cover to the test  
monitor while the monitor output cable on the bottom is connected to video recording  
equipment or another monitor, images may be dark.  
Cable type  
Color  
Signal name  
AC 24 V  
1Monitor output cable (Common)  
2Power cable  
2
3
4
1
Red  
(VN-H257U)  
Black  
AC 24 V  
Disconnect the monitor output cable from the video recording equipment or another  
monitor. Alternatively, set the terminal of either one of the equipments to “OPEN”.  
After adjusting the image, restore the original condition.  
If the monitor image output is turned ON, a lower frame rate is set for network images.  
If you turned the monitor image output to OFF, set the frame rate again.  
Red  
Brown  
Orange  
Yellow  
Black  
White  
Yellow  
White  
Yellow  
INPUT 1 (ALARM)  
INPUT 2 (ALARM)  
OUTPUT 1 (ALARM)  
OUTPUT 2 (ALARM)  
GND (ALARM)  
MIC IN  
GND (MIC IN)  
LINE OUT  
GND (LINE OUT)  
3Alarm I/O cable  
Black  
Movement of network image is not  
smooth  
(VN-H257U)  
(
“Instructios (Setting)” - “Internet Explorer Setting” - “Encoding Page”)  
No monitor image is output.  
The external mic sound is not heard.  
Lens is out of focus  
The image output may be turned Off on Internet Explorer.  
Check the monitor output setting.  
Brown  
Check the MIC connection.  
Is the audio setting turned off? (“Instructions (Setting)” - “Audio Page”)  
4Audio cable  
(VN-H257U)  
Black  
Is the focus adjustment gear engaged? Check the location of the catch.  
Connecting the power cable to AC 24 V source  
LAN cable  
• When connecting to a switching hub:  
Use a straight cable.  
• When connecting to a computer:  
Use a crossing cable.  
Conductor  
diameter (mm)  
1.0 mm dia 1.6 mm dia 2.0 mm dia  
or more  
or more  
or more  
Specifications  
Max cable  
distance (meters)  
(Reference value)  
90  
240  
370  
A 100-meter or less length and Category-5 or higher  
*
The specifications and appearance of this unit are subject to change for purposes of improvement without prior notice.  
grade STP (shielded) cable is recommended.  
VN-H257U VN-H237U  
1/3-inch Square-Pixel Progressive Scan CMOS (elementary color filter)  
Approximately 2,120,000 pixels  
Note  
Note  
Image sensor  
• For safety reasons, turn on the power only after  
confirming that all the connections are completed.  
• Be sure to turn off the camera before connecting  
cables.  
• If you use both the AC 24 V power cable and the  
PoE-based LAN cable simultaneously, the camera  
may fail. Always supply power using either method.  
To use an AC 24 V power supply, remove the factory-  
installed tape from the power cable, connect to an AC  
24 V power supply, and wrap the connector with new  
insulation tape.  
• The crossing cable may not be used for some  
computer models. Check the LAN specifications of  
the computer when you directly connect this unit to  
the computer.  
Effective pixels  
Camera  
section  
1944 (H) x 1092 (V)  
(50 %, AGC High, 1/30 s)  
Color: 0.3 lx (typ.)  
(50 %, AGC High, 1/30 s)  
Color: 0.3 lx (typ.)  
Minimum illuminance  
of subject  
Black and White : 0.03 lx (typ.)  
Black and White : 0.25 lx (typ.)  
Alarm I/O cable  
• A 50-meter or less length shielded cable is  
recommended.  
75 Ω, 1.0 Vp-p  
Monitor output  
NTSC or PAL (switch selectable)  
Can connect to a microphone that has a  
plug-in power system  
Input  
Audio input  
Reference voltage  
Impedance  
DC 2.47 V(typ.)  
2.2 kΩ (typ.)  
Audio output  
Line OUT (200 Ω, Max 1.9 Vp-p)  
Image compression format  
JPEG, H.264 High Profile, H.264 Baseline Profile, MPEG-4  
1920 × 1080  
1280 × 960  
1280 × 720  
640 × 480  
640 × 360  
320 × 240  
Audio cable connection  
Connect the audio cable for an audio device.  
(VN-H257U)  
Frame size  
Network  
output  
Audio compression  
formats  
μ-Law (64 kbps), AD/DA 16 bits,  
Fs = 8 kHz, monaural  
RJ-45  
Audio cable (Brown and White) (MIC IN)  
: Connect to a condenser microphone that has a plug-in power  
system, etc.  
Network interface  
Audio cable (Black and White) (LINE OUT) : Connect to a speaker with a built-in amp, etc.  
100BASE-TX/10BASE-T/FULL/HALF/Auto-negotiation enabled  
No-voltage a contact input, PNP  
open collector input, low level, latch/  
momentary (500 msec or longer) (1 mA  
circuit current at low level, and 3.3 VDC  
applied voltage at high level)  
NPN open collector-output (16 VDC safe  
excitation voltage, and 30 mA allowable  
sink current)  
Memo  
• A shielded audio cable is recommended.  
Alarm input  
* For the location to connect the audio cable, refer to [Cabling] (page 2).  
Alarm output  
Alarm record  
16 MB  
f = 3 mm to 9 mm  
Alarm I/O cable connection  
(VN-H257U)  
Focal length  
f = 2.8 to 10.5 mm  
Maximum aperture ratio F1.2 (f = 3 mm) to F2.1 (f = 9 mm)  
Aperture range  
Zoom ratio  
Standards  
Communication  
protocol  
F1.2 (f = 2.8 mm) to F2.6 (f = 10.5 mm)  
Lens  
F1.2 to F360  
3 x  
F1.2 to F360  
3.75 x  
Alarm input  
Connect an infrared sensor, door sensor, metal  
sensor, a manual switch or other device.  
To avoid noise entering the internal circuit, enter the • An alarm output signal is an open collector output.  
non-voltage contact signal in the Alarm IN terminal.  
• Do not supply voltage.  
• The alarm can be set to be activated during close  
contact (MAKE) or during open contact (BREAK)  
can be set from the menu.  
Alarm output  
Connect an alarm device, indicator, lighting, buzzer or  
other device.  
Compliant with IEEE802.3, IEEE802.3u and IEEE802.3af  
TCP/IP, UDP/IP, FTP, ICMP, ARP, DHCP, SNTP, HTTP, SMTP, RTP, RTSP, IPv4,  
IPv6, DSCP, HTTPS, SNMP  
AC24 V 50 Hz/ 60 Hz, or PoE (DC-48 V)  
AC24 V 0.5 A, or PoE 150 mA (7.2 W)  
-10 °C to 50 °C (Operation)  
0 °C to 40 °C (Recommended)  
20 %RH to 90 %RH (without condensation)  
Approx. 480 g  
LAN  
standards  
You can configure the menu to set the alarm to  
sound when contacts short circuit (MAKE) or  
when the contacts are open (BREAK). (Pressure  
resistance lower than 16V, 30 mA)  
• This terminal has different polarities. The output  
voltage at the positive terminal must always be  
higher than the output voltage at the negative  
terminal. Otherwise, the circuit may be damaged.  
Power supply voltage  
Current consumption  
PoE(DC-48 V)  
120 mA  
Ambient temperature  
General  
Ambient humidity  
Mass  
Option (sold separately)  
The alarm signal should last for at least 500 msec. If  
the alarm signal is short, it may not be recognized.  
Approx. 450 g  
Ceiling mount bracket (WB-S2205)  
Input conditions  
Output conditions  
• Connect non-voltage a contact or open collector  
output circuit  
(For details on how to set polarities, please refer to  
“Instructions (Setting)”.)  
• Equivalent to NPN open collector output  
(For details on how to set the output logic, please  
refer to “Instructions (Setting)”.)  
VN-H257U/VN-H237U  
• Low level terminal current below 1 mA  
• High level terminal current 3.3 V  
This  
• Safe excitation voltage: DC16 V or lower  
• Allowable surge current: 30 mA  
• Momentary (100 ms to 5000 ms) output  
(For details on how to set the time, please refer to  
“Instructions (Setting)”.)  
External dimensions (unit: mm)  
Mounting hole  
for a screw  
46  
111  
camera  
Sensor example (1)  
DC3.3 V  
VCC  
Input 1 or  
Input 2  
Alarm device  
example  
This  
R
OUT  
camera  
3.3 V 1 mA  
G
DC12 V  
Output 1 or  
Output 2  
R
IN  
G
Mounting hole for a screw  
(Alarm input equivalent circuit)  
Sensor example (2)  
Relay switch or  
other devices  
G
G
Hole in the ceiling (unit: mm)  
OUT  
Mounting hole for a screw  
(Alarm output equivalent circuit)  
Front of the camera  
Note  
G
• Connect the G terminal cable of this camera to the  
GND of the alarm device.  
46  
* For connecting the Alarm I/O cable, refer to [Cabling] (page 2).  
Φ
30 (cable hole)  
Pan adjustable  
range  
Direction cables were pulled out  
7.7  
10  
Mounting hole for a screw  
LST1234-001D  
 
4

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