JVC VN-H257U User Manual

LST1234-001D

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 Continued overleaf

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).

Instructions ....................................................... 2
CD-ROM ........................................................... 1

WARRANTY CARD (For USA) ......................... 1
SCREW (M2) .................................................... 2

This camera has been designed for indoor use. It 
cannot be used outdoors.
Do not install the camera in the following 
environments.
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.

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.
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.
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.

Do not block the vents.
Inadequate heat ventilation may cause this camera to 
malfunction. Be sure not to block the vents around the 
camera.

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.
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 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.
Use of recorded materials without first gaining the prior 
consent of the author is forbidden under copyright law 
except in cases of personal use.

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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.
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.

Turn off the power before performing maintenance.
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.

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.

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.
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.
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.
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.
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.
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.
When using multicast, make use of an IGMPv2-
compliant network switch.
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.
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.
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.
During viewing using the Built-in Viewer, the video 
and audio may appear out of sync. This is not a 
malfunction (VN-H257U).

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The standard camera installation procedure can be found on the back side of this page.

© 2012 JVC KENWOOD Corporation

Thank you for purchasing this product.
Before operating this unit, please read the instructions carefully 
to ensure the best possible performance.

For Customer Use:
Enter below the Model No. which is located 
on the body.
Retain this information for future reference.

Model No.
Serial No.

1.  Read all of these instructions.
2.  Save these instructions for later use.
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.

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 
manufacturer.

 

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.

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.

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.

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.

e.  If the appliance has been dropped or the cabinet has been 

damaged.

f.  When the appliance exhibits a distinct change in 

performance

 

- this indicates a need for service. 

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.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION:  TO REDUCE THE RISK OF ELECTRICK 

SHOCK. DO NOT REMOVE COVER 
(OR BACK). NO USER-SERVICEABLE 
PARTS INSIDE. REFER SERVICING TO 
QUALIFIED SERVICE PERSONNEL.

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.
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.

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.

CHANGES OR MODIFICATIONS NOT APPROVED BY JVC 

COULD VOID USER’S AUTHORITY TO OPERATE THE 

EQUIPMENT.

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.

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.

Due to design modifications, data given in this instruction 
book are subject to possible change without prior notice.

FOR EUROPE

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.

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

Deutschland

Information for Users on Disposal of Old Equipment
[European Union]

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.

By disposing of this product correctly, you will help 

to conserve natural resources and will help prevent 

potential negative effects on the environment and 

human health which could otherwise be caused by 

inappropriate waste handling of this product. For 

more information about collection point and recycling 

of this product, please contact your local municipal 

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 symbol 

is only valid in 

the European 

Union.

(Business users)
If you wish to dispose of this product, please visit our web 
page http://www.jvc.eu to obtain information about the take-
back of the product.
[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.

This installation should be made by a qualified service 
person and should conform to all local codes.
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.
The AC 24 V power supply should conform to the 
following: Class 2 only (For USA), Isolated power 
supply only (For Europe and other).
Any Mention in this manual of Alarm inputs have not 
been evaluated by UL to be used for Burglar Alarm 
Functionality. 
Special technique is required when installing this 
product.
Please refer to your dealer for installation.
Rating label is pasted at the bottom or top of the 
camera unit.
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.
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.
The camera may drop if the mounting screws are 
not tightened securely. Check that the screws are 
tightened appropriately and securely.
Do not install the camera near lighting fixtures of high 
temperature, such as spot lights. It might result in 
failure or fires.
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.
The latest version
Please visit V.NETWORKS web site to check the 
latest firmware at
http://www3.jvckenwood.com/english/pro/vnetworks/
index.html

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EN_VN-H237_001D_Non-Mask.indb   1

EN_VN-H237_001D_Non-Mask.indb   1

5/24/2012   2:24:06 PM

5/24/2012   2:24:06 PM