JVC VN-V25U, VN-V26U User Manual

IP CAMERA

VN-V25U
VN-V26U

VN-V25U

INSTRUCTIONS

VN-V26U

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

LST0674-001A

Getting Started

Safety Precautions

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

Attention:

This symbol is
only valid in
the European
Union.

or the shop where you purchased the product.

Penalties may be applicable for incorrect disposal of this waste, in accordance
with national legislation.

(Business users)

If you wish to dispose of this product, please visit our web page
www.jvc-europe.com 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.

FOR USA AND CANADA

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION:TO REDUCE THE RISK OF ELECTRIC

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
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.

2

Information for USA

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.

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.

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

WARNING:
TO REDUCE THE RISK OF FIRE OR

ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPLIANCE TO RAIN
OR MOISTURE.

AVERTISSEMENT:
POUR EVITER LES RISQUES

D’INCENDIE OU D’ELECTRO­CUTION, NE PAS EXPOSER
L’APPAREIL A L’HUMIDITE OU A LA
PLUIE.

INFORMATION (FOR CANADA)
RENSEIGNEMENT

This Class A digital apparatus complies with
Canadian ICES-003.

Cet appareil num rique de la Class A est

(POUR CANADA)

WARNING (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 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 an AC 24 V

power supply.
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/

outputs have not been evaluated by UL to be
used for Burglar Alarm Functionality.

This manual describes detailed usage of
VN-V25U/26U.
For basic usage of VN-V25U/26U, please
refer to AStart-up GuideB.
For latest information, please refer to
AReadmeB file in the CD-ROM.

● The supplied CD-ROM includes

AInstructions (this manual)B(pdf), AAPI
GuideB(pdf), ASearch toolB and AWhite
Spot Correction ToolB.

FOR USA-California Only

This product contains a CR Coin Cell Lithium
Battery which contains Perchlorate Material ­special handling may apply.
See
www.dtsc.ca.gov/hazardouswaste/perchlorate

ENGLISH

Dear Customer,
This apparatus is in conformance with the valid European directives and standards regarding

electromagnetic compatibility and electrical safety.
European representative of Victor Company of Japan, Limited is:

JVC Technology Centre Europe GmbH
Company name changed in:
JVC Technical Services Europe GmbH
Postfach 10 05 52
61145 Friedberg
Germany

DEUTSCH

Sehr geehrter Kunde, sehr geehrte Kundin,
dieses Gerät stimmt mit den gültigen europäischen Richtlinien und Normen bezüglich

elektromagnetischer Verträglichkeit und elektrischer Sicherheit überein.
Die europäische Vertretung für die Victor Company of Japan, Limited ist:

JVC Technology Centre Europe GmbH
Firmenname geändert in:
JVC Technical Services Europe GmbH
Postfach 10 05 52
61145 Friedberg
Deutschland

3

Getting Started

These are general IMPORTANT SAFEGUARDS and certain items may not apply to all appliances.

IMPORTANT SAFEGUARDS

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.

PORTABLE CART WARNING

(symbol provided by RETAC)

S3125A

4

Contents

Getting Started ................................... 2

Safety Precautions ..................................... 2

Main Features ............................................. 6

Operating Environment ............................... 7

Cautionary Notes ........................................ 8

Name and Function of Parts ..................... 10

Front / Bottom / Side ............................. 10

Side ....................................................... 11

Rear ...................................................... 12

Features ................................................... 13

Setup Procedures ..................................... 15

Connection / Installation ................. 16

Mounting the Lens .................................... 16

Power Connection .................................... 17

Connecting to the AC 24 V power

supply ............................................ 17

Using the PoE ....................................... 18

LAN Cable Connection ............................. 19

Monitor Signal Output Terminal

Connection ........................................ 19

Connecting the audio signal output

terminal (VN-V26U only) ................... 19

Alarm Input/Output Terminal

Connection ........................................ 20

Alarm Input Terminal ............................ 20

Alarm Output Terminal .......................... 20

Mounting the Camera ............................... 21

Mounting to the Housing Using the Inner

Tripod Base ....................................... 22

Back Focus Adjustment ............................ 23

Network Requirements ............................. 24

Network Settings ............................. 27

IP Address Settings .................................. 27

Setting the IP address for

VN-V25U/26U ............................... 27

When the IP address of

VN-V25U/26U is known ................ 32

When the IP address of

VN-V25U/26U is unknown ............ 32

Setting Using Internet Explorer ......33

Setup ........................................................ 33

Internet Explorer Setup ......................... 33

Setting ...................................................... 36

View Page ............................................. 36

Camera Page ........................................ 38

Encoding Page ..................................... 44

Audio Page (VN-V26U only) ................. 46

Alarm Page ........................................... 47

Alarm Environment Page ...................... 52

Privacy Mask Page ............................... 56

Motion Detection Page ......................... 58

Basic Page ............................................ 60

Details Page ......................................... 62

Protocol Page ....................................... 63

Streaming Page .................................... 64

Access Restrictions Page ..................... 66

Time Page ............................................ 68

Password Page ..................................... 69

Maintenance Page ................................ 70

LED State Page .................................... 71

List of Factory Settings of Each Page ... 72

Miscellaneous Page .............................. 74

Operation Page ..................................... 75

Settings Page ....................................... 76

Operation ..........................................79

Operation of Built-in Viewer ...................... 79

Internet Explorer Setup ......................... 79

Installing the built-in viewer ................... 81

Screen Configuration of JPEG

Viewer ........................................... 82

JPEG Viewer Configuration .................. 84

Exiting the JPEG Viewer ....................... 87

Screen Configuration of MPEG4

Viewer ........................................... 88

MPEG4 Viewer Configuration ............... 90

Exiting the MPEG4 Viewer ................... 93

Audio Setup (VN-V26U only) ................ 94

Shortcut for Built-in Viewer ................... 96

Others ................................................97

Troubleshooting ........................................ 97

Specifications ......................................... 100

Dimension ........................................... 102

5

Getting Started

Main Features

䡵 High Picture Quality

The camera unit of this product employs a
330,000-pixel CCD (1/4") which enables high
quality video surveillance.

䡵 Support for Dual Stream

Simultaneous distribution of JPEG and MPEG4
images is possible.

䡵 Realization of Full Frame Rate

Data transmission is possible in VGA size at a
rate of 30 fps.

䡵 Support for Multicast

This product supports multicast, which enables
transmission of image data to multiple
computers on the network without lowering the
frame rate. (Audio is supported for VN-V26U)

䡵 Built-in Web Server

You can configure the picture quality and
communication settings using the Internet
Explorer.

䡵 HTTP-based API

This product comes with HTTP-based API. This
feature enables you to perform setting and
control via the network.

䡵 Electronic Sense Up

You can shoot images during surveillance at a
dark place by lengthening the exposure time to
enhance the camera’s sensitivity level.

䡵 Night Surveillance

This product comes with a low luminance
feature, which switches automatically to the high
sensitivity mode (black-and-white).
VN-V26U is equipped with an infrared ray cutoff
filter plug that enables day and night
surveillance. Turning off the infrared ray cutoff
filter when the light intensity level is low, such as
at night, enables you to switch to the high
sensitivity mode (B&W mode).
In the case of VN-V25U, you can switch to a
simple high sensitivity mode by turning off the
color signals when the light intensity level is low,
such as at night (Easy day and night mode).

䡵 Privacy Mask

You can configure the privacy mask setting to
hide specific area in shooting area.

䡵 Motion Detection

This feature enables output of an alarm upon
detection of motion in the video image within
preset area.
Pre-/Post-recorded image files may be sent via
FTP using the alarm input.

䡵 Support for PoE (Power over

Ethernet)

This product supports PoE (IEEE802.3af) and
enables power supply from a LAN cable.
PoE: class 2 (VN-V25U)

class 0 (VN-V26U)

䡵

Built-in JPEG and MPEG4 Viewer

Monitoring of JPEG and MPEG4 images via a
computer is possible by downloading the built-in
viewer onto the computer.
VN-V26U also enables monitoring of audio using
the computer.

䡵 Analog Monitor Signal Output (For

Installation)

This product comes with an analog video
monitor signal output terminal for adjusting the
camera angle during installation.

䡵 Compatibility with Conventional

Peripheral Devices

This product comes in the same shape as
conventional CCTV security cameras, and
therefore can be used with other peripheral
devices for security cameras such as housings.

䡵 Built-in microphone and audio output

terminal (VN-V26U only)

Built-in microphone enables sending audio to
computers. And this product can receive audio
from a computer and output to audio terminal.

6

How to use this manual

䡵 Symbols used

Caution : Describes precautions concerning

the operation of this product.

Note : Describes reference information,

such as functions and usage
restrictions of this product.

A : Indicates the reference page

numbers and reference items.

䡵 Diagrams and images on features

that are common between VN-V25U
and VN-V26U are indicated as
VN-V25U.

䡵 Content of this manual

● All rights reserved by JVC. Unauthorized

duplication or reprinting of this manual, in
whole or in part, is strictly prohibited.

● Windows is a registered trademark of

Microsoft Corporation in the U.S.

● All other product names used in this

manual are trademarks or registered
trademarks of their respective companies.
Marks such as 姠, 姞 and 姝 have been
omitted in this manual.

● Illustrated designs, specifications and other

contents of this manual are subject to
changes for improvement without prior
notice.

Operating Environment

䡵 Recommended Computer

Specifications

OS : Windows XP (Professional or

CPU : Pentium4 1.5 GHz or higher

Memory capacity

Free hard disk space

Display and video card

Sound card (VN-V26U only)

Web browser : Internet Explorer

䡵 LAN Environment

● 10BASE-T/100BASE-TX network

interconnected using devices such as an
IEEE802.3-compliant switching hub.

● IEEE802.3af-compliant switching hub when

PoE is in use.
IGMPv2-compliant network when multicast is

●

in use.

Home Edition) (SP2)

: 1 GB or more

: 512 MB or more

: 1024⳯ 768 pixels or larger,

True Color (24 or 32 bits)
VRAM 8 MB or more (256 MB
and above recommended)

: Sound Blaster (PCI

recommended)

Version 6.0

Note:

● The above PC specifications are guides for

smooth use of the applications, and not a
guarantee of their operation.

● Depending on the condition of use,

applications may not run smoothly even
when the user’s computer meets the
specification requirements.

● Using a computer for which its performance

does not meet the requirements may cause
the JPEG playback frame rate to deteriorate.
In addition, it also causes delay in the
MPEG4 playback images, and may result in
interruption in playback.
Audio may be interrupted. (VN-V26U only)

● To make use of the built-in MPEG4 Viewer of

VN-V25U/26U, install “ffdshow” that is open
source codec. You can download “ffdshow”
from the Internet.

● AD/DA clock varies significantly depending

on the sound card built in the PC. Using such
card may cause overflow or underflow of
audio data and noise may occur in the
playback sound.

7

Getting Started

Cautionary Notes

Maintenance and location of use

䢇 This product is intended for use indoors.

Make sure that you use a housing etc., when
using it outdoors.

䢇 Do not place this product in the following

environments.
Otherwise, it may malfunction or break down.

● Hot or cold locations beyond the

surrounding temperature range of -10°C
to 50°C.

● Locations beyond the allowable operating

humidity range of 20 % to 85 %.
(condensation is not 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 with excessive dust or sand.

● Locations that are subject to excessive

vibration.

● Locations prone to moisture such as

window side.

● Locations subject to steam or oil, such as

kitchens.

● Locations that emit radiation, X-rays or

corrosive gases.

䢇 Use of this product or cables connected to

this product at locations where strong electric
waves and magnetic fields are emitted (e.g.,
near radio, TV, transformer, monitor, etc.)
may cause noise interferences in the images
or changes in the color.

䢇 Do not install this product at locations that

may trap heat.
This product also discharges heat from the

surface of the camera unit. As such, do not
install it at locations that may trap heat, such
as near walls.

Handling Precautions

䢇 Do not hang on this product, shake it, or hand

objects over it. Applying an excessive load
may cause the product to fall off and result in
accidents.

䢇 Do not stack up the equipment.

Heat or noise of an equipment may cause
malfunction or failure of the other, and result
in fire.

䢇 Do not block vents around the equipment.

Inadequate heat ventilation may result in
malfunction of this product. Be sure not to
block vents around the product.

Saving Energy

䢇 When this product is not in use for a long

period of time, turn off the power of the
system to ensure safety and reduce power
consumption.

Maintenance

䢇 Be sure to turn off the power before

performing maintenance.

䢇 Wipe this product using a soft cloth.

Wiping with thinner or benzene may melt or
tarnish its surface. For dirt that cannot be
easily removed, wipe using a neutral
detergent diluted with water, followed by
wiping with a dry cloth.

Copyright Protection

䢇 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 for the duplication, modification, or
transmission of copyrighted video and audio
data.
Unauthorized duplication, modification, or
transmission of copyrighted material may
constitute a copyright infringement, and the
user may be liable to compensate for any
damages. When using copyrighted video/
audio data, be sure to check the license
agreement of the copyrighted material
thoroughly.
When rights or rights holders are involved
with regard to the targeted duplicating
subject, permission may be required for
shooting or using (processing) it. Be sure to
check the licensing conditions thoroughly.

Exemption of Liability

䢇 The motion detection feature is not a feature

to prevent theft or fire. JVC shall not be liable
for any damage that occurs.

䢇 JVC shall not be liable for any damage due to

the invasion of privacy by images of this
camera.

Others

䢇 The cable stopper of the alarm terminal may

come off in some cases. When mounting the
cables, make sure to do so carefully.

8

䢇 If a high luminance object (such as a lamp) is

shot, a white smear may appear at the upper
and lower ends of this object on the screen.
This phenomenon (smear) is characteristic of
solid-state image sensors, and is not a
malfunction.

䢇 Some hubs/switches of products that are

equipped with intelligent features may
include a broadcast/multicast suppression
function. Viewing of multicast images on this
product may fail if this function is enabled.

䢇 Electricity can be supplied to this product

either by connecting the AC 24 V power
supply or using the PoE. Make sure to select
only one mode of electrical supply.
Connecting the power cord and the LAN
cable for the PoE at the same time may result
in f ai lure or ma lfuncti on of the ca me ra.
(A Page 17, 18)

䢇 This product comes with a built-in AGC

circuit. When using this product with AGC set
to AMidB, AHighB or ASuperB, the sensitivity
level increases when the image is dark, and
the screen may appear grainy as a result.
However, this is not a malfunction.

䢇 When using this product with the white

balance set to AATWB, the displayed color
may differ slightly from the actual color
according to the condition of the object due to
the principle of the automatic tracking white
balance circuit. This is not a malfunction.

䢇

The electronic shutter of this product is set to

A

1/30B by default. For regions with a
commercial power supply frequency of 50 Hz,
switch to the flickerless mode during use
under fluorescent lights (excluding inverter
lighting equipment) to prevent flickers.

䢇 When the Black-and-white mode (VN-V26U)

or Easy Day and Night mode (VN-V25U) is
enabled, the image becomes black-and-white
in a dark place. As the sensitivity level is
increased in this case, the screen may
appear grainy and more white spots may
appear. When switching between color and
black-and-white images, the brighter area on
the screen is emphasized, which may reduce
the visibility. However, this is not a
malfunction.

䢇

If the power supply voltage is momentarily cut
off or reduced due to lightning, turning on of
the air conditioner’s power, etc., the image
may be disrupted or noise interference may
occur.

䢇

When using multicast, make use of a
IGMPv2-compliant network switch.

䢇

In the case of VN-V26U, the image and sound
may not synchronize when playing back using
built-in viewer. This is not a malfunction.

䢇

When VN-V26U is sending high bitrate, the
image and sound can be paused during
Black-and-white mode changing. This is not a
malfunction.

9

Getting Started

Name and Function of Parts

Front / Bottom / Side

The model illustrated in the diagram is VN-V26U.

A

B

C

Back Focus Adjustment Ring

A

This ring is used for back focus adjustment and
switching the lens mount method.
To operate, loosen the I back focus fastening
screw by turning it in the anti-clockwise direction,
and turn the screw in the clockwise direction to
fasten after operation is complete.
This product is pre-adjusted to a position that is
best suited for CS mount.
(A Page 23)

B Lens Mount

This is a mount for mounting the lens.
The mount is compatible with CS mount lens
and C mount lens.
(A Page 16)

C Camera Mounting Bracket Fastening

Screw (2 pcs: M2.6 x 6 mm)

Use screws with a length of 6 mm. Screws
beyond the specified length must not be used as
doing so may damage the interior.

I
H

G

F

E

D

Use screws with a length between 5 mm to
7 mm. Screws beyond the specified length may
damage the interior, while those shorter than
specified may cause the camera to fall off, and
therefore these must not be used.
(A Page 21)

F Built-in Microphone (VN-V26U only)

Audio picked up using this microphone is sent to
computers.

G [MAC address] Indicator

The MAC address is a unique physical address
of the product. This address cannot be altered.

H Camera Mounting Bracket

This bracket is pre-mounted to the bottom
surface of the camera. It can also be mounted to
the top surface according to the usage. Mount it
to the screw holes at the top surface using the C
camera mounting bracket fastening screws.
(A Page 21)

J

D Anti-rotation Hole

Use this anti-rotation hole to mount the camera
firmly.

E Camera Mounting Screw Holes

(1/4-20UNC)

Use this hole when mounting this product to a
fixer or rotating platform.

10

I [BF LOCK] Back Focus Fastening Screw

This is the fastening screw for the back focus
adjustment unit. (A Page 23)

J Inner Tripod Base Screw Hole (1/4-20UNC)

Use this hole when mounting this product to a
miniature housing.
You can mount to the housing through this hole
directly without using the H camera mounting
bracket. (A Page 22)

Side

MONITOR OUT

STATUS

K

[MONITOR OUT] Monitor Output Selection
Switch

Use this switch to select the availability of output
from the O [MONITOR OUT] terminal as well as
the signal system.
NTSC : Outputs NTSC signals.
OFF : No output. Select this value when

distributing images to the network.
PAL : Outputs PAL signals.
[Default setting: OFF]

Caution:

● Images are not distributed to the network

when ANTSCB or APALB is selected.

● When the switch is changed, press the L

Reset button to reboot the unit.

L [RESET] Reset Button

This is a button for rebooting the camera. Press
this button and release within 5 seconds to
reboot the camera.
It takes about one minute for the camera to
reboot. During startup, the [RESET] button is
disabled.

Note:

Pressing the [RESET] button for 5 seconds or
longer switches the camera to the service
verification mode. Do not press the button for 5
seconds or longer.

M [IRIS] Iris Terminal

Use this terminal to connect the DC iris lens.
(Connection with the video iris lens is not
possible.)
(A Page 16)

N [STATUS] Status Indicator

This status of this product is indicated in green
or orange color.
Starting up: Lights up in orange
Startup complete: Lights up in green
Error: Blinks in orange

K

L

PAL OFF NTSC

RESET

IRIS

MN

Note:

You can adjust the [LED State] settings via the
network to turn off the indicator after startup is
complete. (A Page 71)

11

Getting Started

Rear

VN-V25U

R

1

AC24V

MONITOR

CLASS 2 ONLY FOR USA

ISOLATED POWER ONLY

FOR EUROPE AND OTHER

SEE INSTRUCTION MANUAL

CAUTION

: NEVER USE

DO NOT CONNECT TO THE TELEPHONE NETWORK

Q

2

G 2 1 2 1

INPUT

PoE

OUT

10BASE-T/
100BASE-TX

PoE

AND

AC 24V

ALARM

AT THE SAME TIME

OUTPUT

SS

PUSH

PO

[MONITOR OUT] Monitor Video Signal

O

Output Terminal (RCA)

This is an output terminal for composite video
signals (1 V (p-p), output impedance of 75 K).
Use this terminal to connect to devices such as a
video monitor.
This terminal is used for adjusting the camera
angle during installation. (A Page 19)

Note:

● Use the K [MONITOR OUT] switch to select

the availability of output as well as the signal
system. When the switch is changed, press
the L Reset button to reboot the unit.

● When using the [MONITOR OUT] output, set

the privacy mask to AOffB. (A Page 56)

P [10BASE-T/100BASE-TX]

Use this terminal to connect to the network via a
LAN cable.
This product supports PoE (IEEE802.3af) and
therefore can be used without a power cable.
PoE: class 2 (VN-V25U)

class 0 (VN-V26U)

(A Page 17)(A Page 19)

Q [ALARM INPUT/OUTPUT] Alarm Input/

Output Terminals

Use these terminals to connect to an external
alarm device.
(A Page 20)

R [AC24V] Power Input Terminal

Use this terminal to connect to an AC 24 V,
50/60 Hz power supply.

(A Page 17)

VN-V26U

R

1

AC24V

MONITOR

CLASS 2 ONLY FOR USA

ISOLATED POWER ONLY

FOR EUROPE AND OTHER

SEE INSTRUCTION MANUAL

CAUTION

: NEVER USE

DO NOT CONNECT TO THE TELEPHONE NETWORK

O

Q

2

G 2 1 2 1

INPUT

PoE

OUT

10BASE-T/
100BASE-TX

PoE

AND

AC 24V

ALARM

AT THE SAME TIME

AUDIO OUT

PUSH

OUTPUT

T

P

S Fall Prevention Wire Mounting Screw

(M3 x 6 mm)

Use this screw to mount the fall prevention wire.

A

Page 21)

(

T [AUDIO OUT] Audio signal output terminal

(mini jack R3.5 mono) (VN-V26U only)

Outputs audio (analog) received from a
computer.
Does not output audio from the F built-in­microphone.

12

Features

r

Surveillance via Dual Stream

Surveillance Using the Built-in Viewer

VN-V25U/26U comes with a built-in ActiveX
JPEG Viewer and MPEG4 Viewer.
JPEG images and MPEG4 images of
VN-V25U/26U can be monitored using the
computer by installing this built-in viewer on the
computer. JPEG images that are currently
displayed can also be captured in the
computer’s hard disk.
For VN-V26U, you can check the audio of the
built-in microphone using the computer.
AOperation of Built-in ViewerB (A Page 79)

VN-V25U/26U

MAC address

Network

Computer

VN-V25U/26U accepts requests from 20 clients
at maximum.

Monitoring via Multicast

Multicast enables monitoring of JPEG and
MPEG4 images on multiple computers.
For VN-V26U, you can check the audio of the
built-in microphone using the computer.

AStreaming PageB (A Page 64)
AJPEG Viewer ConfigurationB (A Page 84)
AOperationB (A Page 90)

Simultaneous distribution of JPEG and MPEG4
images enables real-time surveillance using
MPEG4 (30 fps) and recording of JPEG images
at the same time. You can also lengthen the
recording time by lowering the frame rate,
resolution, and picture quality settings for JPEG
images.

Real-time Surveillance

VN-V25U/26U

MAC address

Using MPEG4

Computer

Network

Storage Device

Recording JPEG Images

Saving JPEG images to the FTP server
at regular intervals

JPEG images may be uploaded to the FTP
server at regular intervals.
AFTPB (A Page 53)

VN-V25U/26U

MAC address

VN-V25U/26U

MAC address

IGMP­Compliant
Network

Computer

Compute

Computer

Network

Uploads the latest JPEG
images to the FTP server
at regular intervals

Computer

13

Getting Started

MAC address

Sending audio to the network (VN-V26U
only)

Sends out audio picked up using the built-in
microphone of VN-V26U to computers.

VN-V26U

MAC address

Built-in
mike

Network

Headset

Computer

Receiving and outputting audio from
the computer via the network (VN-V26U
only)

Receives audio that is input to a computer, and
outputs the audio to a speaker that is connected
to [AUDIO OUT] terminal of VN-V26U.

Speaker with
amplifier

VN-V26U

MAC address

Headset

Alarm

VN-V25U/26U comes with a motion detection
feature and dual alarm input.
By motion detection or alarm input, actions such
as mail delivery, message transmission via TCP/
UDP, alarm output can be triggered. These
actions can also be triggered by combination of
two alarm inputs.
Installing an FTP server enables uploading of
JPEG images before and after the alarm input
time (pre-/post-recording) to the server.

AAlarm PageB (A Page 47)
AJPEG Viewer ConfigurationB (A Page 84)

VN-V25U/26U

Sending JPEG images
before and after alarm
input to FTP

Alarm Device

Network

Computer

Restrictions on Clients

VN-V25U/26U enables users to authorize or
reject the acquisition of images by specific IP
address.

A

Page 66)

(

Network

Computer

Note:

● Use of a headset for audio input/output of the

computer is recommended to prevent
howling.

14

Control via customized application
software

The following uses are also possible by
developing a customized application software
that supports the API of VN-V25U/26U.
For details, please refer to AAPI GuideB in the
supplied CD-ROM.

● Monitors via the computer while at the same

time records images to the HDD of the
computer.

● Performs recording by changing the frame

size/frame rate during alarm occurrence.

● Records the type and time of alarm

occurrence on the computer.

Setup Procedures

Step 1 Connection/Installation (APage 17)

Connect the lens mount, power supply cord,
LAN cable and alarm.
Next, mount the camera to the ceiling.
Remember also to mount the fall prevention
wire. After the camera is mounted, connect the
video monitor to the [MONITOR OUT] terminal
at the rear of the unit, followed by adjusting the
camera angle.
You can select the video signals of the
[MONITOR OUT] terminal using the
[MONITOR OUT] switch. (
(Back focus adjustment
([MONITOR OUT] switch

T After adjusting the camera angle using the

[MONITOR OUT] terminal, set the
[MONITOR OUT] switch to AOFFB. Images
are not distributed to the network when
ANTSCB or APALB is selected. After changing
the [MONITOR OUT] switch setting, press
the Reset button to reboot the camera.

A

NTSCB or APALB)

A

Page 23)

A

Page 11)

G

Step 2 Network settings (A Page 27)

Configure the network settings of the
computer and this camera.

T In a system where multiple units of VN-V25U/

26U are used, turn on the power of only one
unit to configure the IP address settings
using the Internet Explorer. Upon doing so,
turn on the power of the second unit and
configure accordingly. Configure the settings
for the other cameras using the same
procedure.

G

Step 3 Configuring settings using the
Internet Explorer (A Page 33)

Configure the picture quality and alarm
settings using the Internet Explorer.

G

Step 4 Operating the built-in viewer
(A Page 79)

The built-in viewers enable you to monitor
JPEG and MPEG4 images and save JPEG
images.

15

Connection / Installation

STATUS

MONITOR OUT

IRIS

PAL OFF NTSC

RESET

3

42

1

3.

2.

Mounting the Lens

1.Check the mounting method of the lens to

be used before mounting

● The default method used for this camera is

CS mount. To use a C mount lens, loosen the
back focus fastening screw using a
screwdriver, followed by turning the back
focus adjustment ring using a finger or
pointed object (e.g., screwdriver, etc.) to
change the mount method.

● Make use of the values listed in the table

below for the dimensions of the lens mount
(a) indicated in the following diagram.

Lens

C Mount
Lens

CS Mount
Lens

● Objects longer than the dimension (a) must

not be used as doing so may damage the
camera interior or prevent the lens from
being properly mounted, hence resulting in
malfunctions.

Flange Focus (b)

Dimension (a)

17.526 mm VN-V25U: 10
mm and below
VN-V26U: 5.5
mm and below

12.5 mm 5.5 mm and
below

2.Turn the lens in the clockwise direction to

mount it to the camera firmly

3.When using a DC iris lens, pay attention

to the pin position before connecting the
lens cable

4.Pin Plug

3

1

4

2

16

DC Iris Lens

Loosen

Back Focus Fastening
Screw (M2.6)

(a)

F

Pin No.

(Without Built-in EE Amplifier)

1 Damping (-)

2 Damping (+)

3 Driving (+)

4 Driving (-)

(b)

Power Connection

Electricity can be supplied to this product either
by connecting to the AC 24 V power supply or
using the PoE (A Page 18).

When power is supplied to this product, the

䢇

[STATUS] indicator at the side lights up. The
indicator lights up in orange color during
startup, and switches to green color after
startup is complete.
You can select not to light up the [STATUS]
indicator when the unit is running. (

Caution:

●

Make sure to select only one mode of electrical
supply. Connecting the power cord and the
LAN cable for the PoE at the same time may
result in failure or malfunction of the camera.

● Be sure to use an AC 24 V supply that is

isolated from the primary power supply
circuit. Using a variable voltage power supply
will cause the camera and system to
malfunction or breakdown.

Connecting to the AC 24 V power supply

Connect this product to the AC 24 V power
supply when the PoE is not used.

Caution:

●

Make sure to select only one mode of electrical
supply. Connecting the power cord and the
LAN cable for the PoE at the same time may
result in failure or malfunction of the camera.

● The unit is to be powered by an AC 24 V

power supply.
The AC 24 V power supply should conform to
the following: Class 2 only (For USA),
Isolated power supply only (For Europe and
others).

2

1

AC24V

MONITOR

OUT

CLASS 2 ONLY FOR USA

ISOLATEDPOWER ONLY

FOR EUROPE AND OTHER

SEE INSTRUCTION MANUAL

CAUTION

:NEVER USE

DO NOT CONNECT TO THE TELEPHONE NETWORK

INPUT

PoE

PoE

AC 24V

AND

G 2121

10BASE-T/
100BASE-TX

AT TH E S AM E TI ME

ALARM

A

Page 71)

To Power
Supply

OUTPUT

PUSH

MONITOROUT

PAL OF F NTSC

STATUS

IRIS

Status Indicator

RESET

䢇 Power cord

● To prevent misconnection and detachment of

cords, use a lug plate to connect the cord to
the terminal.

● When a two-core VVF (vinyl insulated vinyl

sheath cable) is used, the connection
distance is as follows. (Reference value)

Conductor Diameter
(AWG No.)

Maximum
Extension

VN-V25U 150 m 400 m 630 m

VN-V26U 90 m 240 m 370 m

R

1.0 mm
(18) and
above

R

1.6 mm
(14) and
above

R

2.0 mm
(12) and
above

Warning

The rated power of this product is AC 24 V,
50 Hz/60 Hz. Make sure to use it with the
correct voltage.
Use an AC 24 V supply that is isolated from
the primary power supply.
Supplying a power beyond the rated value
may result in failures, smoke or fire. When the
camera breaks down, turn off the power and
contact our service center immediately.
When a power beyond the rated value is
supplied, the internal components may be
damaged even if no abnormality is found on
the appearance and operation of the camera.
Please contact our service center immediately
for servicing (charged separately).

Note:

●

After DHCP timeout, all IP addresses of
VN-V25U/26Us are set to 192.168.0.2 by default.
When the power of multiple cameras within the
same LAN environment are turned on at the
same time, the IP address of the cameras
overlap, thus preventing proper access. As such,
make sure to turn on the power of the cameras
one by one.

17

Connection / Installation

● In a system where multiple units of VN-V25U/

26U are used, turn on the power of only one
unit to configure the IP address settings
using the Internet Explorer. Upon doing so,
turn on the power of the second unit and
configure accordingly. Configure the camera
settings using the same procedure.

● When overlapping of the IP address occurs,

check to ensure that there is only one
VN-V25U/26U unit within the same LAN
environment, and wait for a while (at least 10
minutes) or power off and on all network
devices under the same LAN environment.
Otherwise, access to VN-V25U/26U may fail.

Using the PoE

Connect to a device that supports PoE to supply
electricity from the LAN cable.

2

1

G 2121

MONITOR

OUT

INPUT

PoE

10BASE-T/
100BASE-TX

PoE

AC 24V

AND

AC24V

CLASS 2 ONLY FOR USA

ISOLATEDPOWER ONLY

FOR EUROPE AND OTHER

SEE INSTRUCTION MANUAL

CAUTION

:NEVER USE

DO NOT CONNECT TO THE TELEPHONE NETWORK

ALARM

AT THE SAME TIME

OUTPUT

PUSH

Connect to PoE­compatible device

Note:

● For details on the connection method and

cable type, please refer to ALAN Cable
ConnectionB (A Page 19).

What is PoE (Power over Ethernet)?

This is a function that enables operation of a
LAN equipment without a power cable by
supplying power simultaneously with the data
using a LAN cable.

18

LAN Cable Connection

Connect the camera to a hub or computer using
a LAN cable.

Cable to use

● Shielded cable

● Length of 100 m or shorter

䡵 When connecting to a hub

Make use of a straight cable.

䡵 When connecting to a computer

Make use of a cross cable.

2

1

1

AC24V

AC24V

CLASS2ONLYFORUSA

ISOLATEDPOWER ONLY

FOR EUROPEAND OTHER

SEEINSTRUCTION MANUAL

CAUTION

:NEVER USE

DONOT CONNECT TO THE TELEPHONE NETWORK

CLASS2ONLYFORUSA

ISOLATEDPOWER ONLY

FOR EUROPEAND OTHER

SEEINSTRUCTION MANUAL

CAUTION

:NEVER USE

DONOT CONNECT TO THE TELEPHONE NETWORK

Caution:

● However, cross cables cannot be used with

some computer models. When connecting
VN-V25U/26U directly to a computer, check
the computer’s LAN specifications in
advance.

Note:

● Make use of a Category 5 (or higher) cable

when 100BASE-TX is used.

● To distribute images to the network, set the

[MONITOR OUT] switch at the side of this
product to AOFFB.

[MONITOR OUT] Switch

MONITOROUT

2

MONITOR

OUT

MONITOR

OUT

STATUS

INPUT

INPUT

PoE

PoE

PoE

AC 24V

AND

PoE

AC 24V

AND

G 2121

G 2121

ALARM

ALARM

10BASE-T/
100BASE-TX

AT THE SAME TIME

10BASE-T/
100BASE-TX

AT THE SAME TIME

PAL OF F NTSC

OUTPUT

OUTPUT

PUSH

PUSH

RESET

Monitor Signal Output Terminal Connection

This terminal is used for adjusting the camera
angle during installation. Connect it to devices such
as a video monitor using a video cable (RCA).

2

1

AC24V

CLASS2ONLYFORUSA

ISOLATEDPOWER ONLY

FOR EUROPEAND OTHER

SEEINSTRUCTION MANUAL

CAUTION

:NEVER USE

DONOT CONNECT TO THE TELEPHONE NETWORK

MONITOR

OUT

INPUT

PoE

PoE

AND

AC 24V

G 2121

ALARM

10BASE-T/
100BASE-TX

AT THE SAME TIME

OUTPUT

PUSH

Caution:

● A longer cable extension distance causes

signals to be attenuated, image resolution to
deteriorate and noise to increase.

Note:

●

Select the signal system for the monitor output
using the [MONITOR OUT] switch at the side of
this product. (
After adjusting the camera angle, set the switch

A

OFFB. After changing the switch settings,

to
press the Reset button to reboot the camera.

A

NTSCB or APALB)

Connecting the audio signal
output terminal (

Connect to the speakers with a built-in amplifier,
etc. using mini jack (R3.5 mono) cable.

Y

THER

WER ONL

OPEAND O

CLASS 2 ONLYFOR USA

ISOLATEDPO

FOR EUR

SEEINSTRUCTION MANUAL

CAUTION

DONOT CONNECT TO THE TELEPHONE NETWORK

VN-V26U only

2

1

AC24V

:NEVER USE

MONITOR

OUT

G

INPUT

PoE

10BASE-T/
100BASE-TX

PoE

AC 24V

AND

AT THE S A ME T I ME

2121

ALARM

AUDIO OUT

PUSH

)

OUTPUT

IRIS

19

Connection / Installation

DC3.3 V

R

3.3 V

1 mA

VCC

OUT

GND

GND

OUT

R

IN

R

DC 12 V

GND

Alarm Input/Output Terminal Connection

Connect the alarm input/output terminals with
external devices, such as a sensor or buzzer.
Plug/Unplug the cable while pressing the button
as shown in the diagram below.

Cable to use

● Shielded cable

● Length of 50 m or shorter

2

1

AC24V

MONITOR

OUT

CLASS 2 ONLY FOR USA

ISOLATEDPOWER ONLY

FOR EUROPE AND OTHER

SEE INSTRUCTION MANUAL

CAUTION

:NEVER USE

DO NOT CONNECT TO THE TELEPHONE NETWORK

PoE

Push

G 2121

INPUT

ALARM

PoE

10BASE-T/
100BASE-TX

AC 24V

AND

AT THE SAME TIME

OUTPUT

PUSH

VN-V25U/26U

INPUT 1 or
2 Terminal

G Terminal

(Alarm Input Equivalent Circuit)

Sensor Example

(1)

Sensor Example

(2)

Relay Switch, etc.

Alarm Output Terminal

Connect this terminal to annunciating devices,
such as annunciators, indicators, lights, or
buzzers.

䡵 Output requirements

● Equivalent to NPN open collector output (Set

the output logic using the Internet Explorer)

● Allowable applied voltage: DC12 V and below

● Allowable inflow current: 50 mA

Momentary (100 ms - 5000 ms) output

●

(Set time using the Internet Explorer
(A Page 52))

Caution:

● Noises from an external source may cause

the camera to malfunction even when the
cable used is within 50 m. In this case, move
the cable away from the noise source.

Alarm Input Terminal

Connect this terminal to sensor devices, such as
an infrared sensor, door sensor, metal sensor or
manual switch.

䡵 Input requirements

● No-voltage relay NPN open collector input

● Polarity of input detection can be selected

using a software

● Make/Break (500 ms and above)

● Circuit current at low level: 1 mA

● Applied voltage at high level: 3.3 V

20

Annunciating

VN-V25U/26U

OUTPUT 1
or 2 Terminal

G Terminal

(Alarm Output Equivalent Circuit)

Device Example

Caution:

● Connect the G terminal of this camera to the

GND terminal of the annunciating device or
alarm input sensor.

Mounting the Camera

Use the screw hole on the camera mounting
bracket to mount this camera to a fixer or
rotating platform.

Camera
Mounting
Screw Hole
1/4-20UNC

Camera Mounting
Bracket Fastening Screw
(2 pcs: M2.6 x 6 mm)

䡵 Mounting the camera mounting

bracket on the top of the camera

Camera
Mounting
Bracket

Anti-rotation Hole

Camera
Mounting
Bracket

Fall
Prevention
Wire

M3x6 mm

(15/64 inch)

6 mm

2 mm and below

Caution:

● When mounting the camera, use screws with

a length between 5 mm to 7 mm from the
mounting surface. Screws beyond the
specified length may damage the interior,
while those shorter than specified may cause
the camera to fall off, and therefore these
must not be used.

1/4-20UNC

5 mm and
above

7 mm and
below

Caution:

● The camera mounting bracket is mounted on

the bottom surface of the camera by default.
To mount it to the top surface, do so by
removing the two fastening screws from the
camera mounting bracket. Make sure to
fasten the screws firmly.

21

Connection / Installation

Warning

● Special attention is required when mounting

the camera to a wall or ceiling. Users
should get professional contractors to
perform mounting operations instead of
doing it themselves. Failure to do so may
cause the camera to fall off and result in
injuries or accidents.

● When mounting the camera to a fixer or

rotating platform, ensure that the camera is
firmly mounted by using the anti-rotation
holes to prevent it from falling off.

● To prevent the camera from falling off,

ensure that it is connected to a firm place
(ceiling slab or channel) using a fall
prevention wire.

● Pay also careful attention to the length,

strength, wiring, and material (insulating
properties) of the fall prevention wire to be
used. The length used should be as short
as possible within the permissible range of
the mounting length. The wire should be
strong enough to withstand the total weight
of this product and the fixer. (Pay also
attention to the finishing at the end of the
wire.)

● Mount the fall prevention wire using the

black screw at the rear of the camera unit.

● Designated screw for fastening of fall

prevention wire (M3 x 6 mm): Screws
beyond the specified length must not be
used as doing so may damage the interior.

Mounting to the Housing Using the Inner Tripod Base

This product comes with an inner tripod base at
the bottom surface. You can use the inner tripod
base by removing the camera mounting bracket
that is attached to the bottom surface. Mount this
product to the miniature housing using the screw
hole of the inner tripod base.

Inner Tripod Base

Camera Mounting
Bracket

Remove the screws for the bracket (2 pcs)

Bottom Surface

22

Inner Tripod Base Screw Hole (1/4-20UNC)

Inner Tripod Base Mounting Screw

Make use of 1/4-20UNC screw. The length of
the mounting screw shall be between 6 mm to
7 mm from the mounting surface.

Caution:

● Using a screw with a length longer than

specified may damage the internal parts of
the camera, while using a length shorter than
specified may cause the camera to fall off.
Use a washer to adjust the length from the
mounting surface.

Max. 7 mm
(17/64 inch)

Mounting Plate

Washer

Min. 6 mm
(15/64 inch)

Back Focus Adjustment

The CS mount is adjusted to the widest point of
the applicable range by default. When using the
zoom lens or C mount lens, or when the lens
remains out of focus upon using the focus ring,
readjustment is required.

● Follow the method below when necessary to

adjust the back focus.

● In order to adjust the back focus accurately,

do so according to the steps below upon
opening the lens iris using the iris adjustment
and ND filter.
(ND filter is a filter that is used to evenly
reduce the amount of light entering the lens
at all wavelengths.)

● Connect a video monitor to the [MONITOR

OUT] terminal at the rear of the unit, followed
by adjusting as follows.

Back Focus Adjustment Ring

Fixed focus lens

Adjust when the lens cannot be brought into
focus using the focus ring.

1.Loosen the back focus fastening screw by

using a Phillips screwdriver and turning it in
the anti-clockwise direction

2.Shoot the object or a fine pattern that is

farther away than the object

3.Set the focus ring of the lens to ∞

4.Turn the back focus adjustment ring to obtain

a sharp focus

5.Tighten the back focus fastening screw by

turning it in the clockwise direction, and
ensure that it is securely fastened

Zoom lens

Perform the zooming operation (Tele - Wide)
and adjust accordingly if it is out of focus.

1.Loosen the back focus fastening screw by

using a screwdriver and turning it in the anti­clockwise direction

2.Shoot the object or a fine pattern that is

farther away than the object

3.Set the zoom lens to Tele and turn the lens

focus ring to adjust the focus

4.Set the zoom lens to Wide and turn the back

focus adjustment ring to adjust the focus

5.Repeat Steps 3. and 4. for two to three times

6.Tighten the back focus fastening screw by

turning it in the clockwise direction, and
ensure that it is securely fastened

Tighten

Loosen

Back Focus Fastening
Screw (M2.6)

Lens Focus Ring

23

Connection / Installation

Network Requirements

●

Ensure that there is sufficient network
bandwidth for the data volume to be sent out
by VN-V25U/26U. Do not send multicast
stream that exceeds the bandwidth. If the
entire bandwidth is used by the multicast
stream, control of this camera via the network
may fail.

●

Data volume to be sent by VN-V25U/26U varies
with the settings and number of distributions.

●

The maximum bit rate for transmission is
about 20 Mbps.

Estimation of Total Bit Rate

The total JPEG bit rate from VN-V25U/26U is
determined by the VN-V25U/26U settings,
number of clients, and the client’s requested
number of frames. The total MPEG4 bit rate
from VN-V25U/26U is determined by the number
of distributions. Develop a design upon taking
the above into consideration.

Bit Rate of JPEG Stream

The JPEG file size per frame varies with the
encoding settings as well as input video signals.
The following table may be used as a reference.
When VFS is selected, the quantization table
during JPEG encoding will be maintained, and the
file size will increase/decrease according to the
input signals. When AFS is selected, encoding will
be performed such that the target file size is the
average size of multiple JPEG images.

Picture Quality
Control Method

VFS
(Variable

File Size)

AFS
(Average File Size)

The maximum number of distributions varies
with the bit rate settings as well as the client’s
requested frame rate. Up to 20 streams can be
distributed (including multicast). The total frame
rate refers to the sum of these frame rates.

1 (High) 80 KB 27 KB

2 60 KB 20 KB

3 40 KB 13 KB

4 (Medium) 30 KB 10 KB

5 25 KB 8 KB

6 20 KB 7 KB

7 (Low) 15 KB 5 KB

VGA File
Size

Selectable
between
10 KB ­100 KB

QVGA File
Size

Selectable
between
3 KB ­33 KB

For example, when 10 fps is requested by two
clients, and in addition, multicast is transmitted
at a rate of 10 fps, the total frame rate will be:

10 + 10 + 10 = 30 fps

If the JPEG file size per frame is 30 KB, then the
total bit rate will be:

30 KB x 30 fps = 900 KB/s = Approx. 7.2 Mbps

Bit Rate of MPEG4 Stream

You can select either the Variable Bit Rate
(VBR) or Constant Bit Rate (CBR) system for
MPEG4 stream.
When the VBR system is selected, the bit rate
varies according to the condition of the input video
signals. The VBR system delivers a stable picture
quality, but forecast of the bit rate is difficult.
When the CBR system is selected, encoding is
performed at a fixed bit rate regardless of the
condition of the input video signals. The picture
quality varies under the CBR system, but the bit
rate can be easily forecast.
You can specify an estimated bit rate for both
VBR and CBR. (64 kbps - 8000 kbps)

Bit Rate of Audio (VN-V26U only)

Up to 2 audio data streams can be sent by VN­V26U.
Only 1 audio data stream can be recieved. Data
volume for 1 audio stream is 64 kbps. Audio data
volume may be calculated using the following
formula.
64 kbps x no. of streams
The number of streams is the total number of
streams sent via TCP (number of clients), streams
sent via multicast, and stream received by
VN-V26U
(Example)
When
receives 1 audio stream, data volume will be as
follows.
64 kbps x 3 = 192 kbps

.

VN-V26U

sends out 2 audio streams and

24

Restrictions on the Number of
Distributions for VN-V25U/26U

The maximum number of distributions for
VN-V25U/26U is determined by the settings as
well as requirements from the client.

When only JPEG images are distributed, the
maximum number of distributions is determined
based on the highest bit rate within the stream.
When a distribution request that exceeds the
maximum number of distributions is received,
this request is denied. For example, if Client A
requests for and receives data at 1 Mbps, while
Client B requests for and receives data at
5 Mbps, the maximum number of distributions is
4 streams according to the table below.

Maximum number of distributions when only
JPEG data is distributed

Distribution

at maximum

bit rate

1 Mbps and
below

5 Mbps and
below

10 Mbps and
below

Larger than
10 Mbps

When only MPEG4 images are distributed, the
maximum number of distributions is determined
by the preset bit rate. When a distribution
request that exceeds the maximum number of
distributions is received, this request is denied.

When distributing only MPEG4 data

Preset bit

rate

0.6 Mbps
and below

3 Mbps and
below

6 Mbps and
below

Larger than
6 Mbps

Maximum

number of

distributions

20 20 Mbps

4 20 Mbps

2 20 Mbps

1 Maximum

Maximum

number of

distributions

20 12 Mbps

4 12 Mbps

2 12 Mbps

1 Maximum

Total

maximum bit

rate

configurable
value
(24 Mbps)

Total

maximum bit

rate

configurable
value (8
Mbps)

When both JPEG and MPEG4 images are
distributed simultaneously, distribution up to two
clients for JPEG and MPEG4 respectively is
possible. However, distribution requests that
exceed a total bit rate of 20 Mbps will be denied.

Total bit

rate

20 Mbps and
below

Maximum

number of

distributions

for JPEG

22

Maximum

number of

distributions

for MPEG4

Insufficient network bandwidth

When there is insufficient bandwidth, the
number of JPEG frames (frame rate) that the
client can acquire will decrease. Delay will also
occur in the distribution of images. In the case of
MPEG4, noise interference may occur and
playback may fail.
There may be a longer delay or interruption in
the audio.

Network Delay

When the client acquires JPEG via TCP,
VN-V25U/26U will send out data while checking
the ACK from the client at the same time. For
networks with considerable delay, data cannot
be sent out until ACK is received, and therefore
the frame rate will drop. In the case of MPEG4,
noise interference may occur and playback may
fail.
Audio may be interrupted.
Decrease in the frame rate due to network delays
can be eliminated by receiving data via multicast.

Network Jitter

When there is considerable network jitter, delay
time may be prolonged and the image frame rate
may drop. In the case of MPEG4, noise
interference may occur and playback may fail.
Audio may be interrupted.

Packet Loss

When acquiring images from VN-V25U/26U via
TCP, packet loss may be recovered by TCP
transmission. When there is considerable delay
in the network, however, missing data may occur
and the image frame rate may drop. In the case
of MPEG4, noise interference may occur and
playback may fail.
Audio may be interrupted.
When packet loss occurs during multicast
sending from VN-V25U/26U, the image frame
rate may drop. In the case of MPEG4, noise
interference may occur and playback may fail.
Audio may be interrupted.

25

Connection / Installation

Network Requirements
(continued)

List of Protocols and Port Numbers
Used by VN-V25U/26U

VN-V25U/26U uses the protocols and port
numbers listed below. Ensure that these ports
are allowed through the firewall when a firewall
is to be installed.

Protocol/Port No. Purpose of Use

Source

TCP/80 JPEG/MPEG4

TCP/10020
TCP/10021
TCP/10023

TCP/32040 Alarm server

Destination

TCP/20, 21 FTP

TCP/25 Mail delivery

TCP/110 POP (Mail Delivery)

TCP/User Setting No. Sending alarm

UDP/123 SNTP

UDP/User Setting No. Sending alarm

acquisition, Web
Settings page, API,
Sending/Receiving
audio (VN-V26U
only)

(Reserved for
adjustment)

26

Network Settings

IP Address Settings

Setting the IP address for VN-V25U/26U

There are two methods to set the IP address for
VN-V25U/26U as follows.

(A) Assigning an IP address to VN-V25U/26U

from the DHCP server

(B) Assigning a static IP address to VN-V25U/

26U

䡵 (A) Assigning an IP address from the

DHCP server

● VN-V25U/26U is set to ADHCP EnableB (the

DHCP client feature is on) by default. To
assign an IP address from the DHCP server,
connect VN-V25U/26U to LAN with DHCP
server, and turn on VN-V25U/26U. Allowing
the DHCP server to assign the same IP
address to VN-V25U/26U every time eases
access to VN-V25U/26U.

● For details on IP addresses assigned to

VN-V25U/26U, consult your network
administrator.
You can look up the IP address of VN-V25U/
26U using the search tool in the supplied
CD-ROM.
For details, please refer to AReadmeB file in
the CD-ROM.

Caution:

● Set the DHCP server such that the same IP

address is always assigned to the MAC
address of VN-V25U/26U by the DHCP
server. Connection may fail if the above
setting is not performed.

䡵 (B) Assigning a static IP address

䢇 System configuration required for setting

IP address

The default setting for VN-V25U/26U is ADHCP
EnableB (DHCP client feature is turned on).
Upon starting up in LAN without DHCP server,
VN-V25U/26U starts running with the following
IP address after time out of DHCP.

IP address : 192.168.0.2

Subnet mask : 255.255.255.0

Default gateway : Nil

Note:

● To set a static IP address for VN-V25U/26U,

connect VN-V25U/26U, the switching hub
and the computer for setting using a straight
LAN cable of Category 5 and above.

䢇 Set up the computer for setting the IP

address.

● Minimum computer specifications for

setting

OS : Windows XP (Professional or

Home Edition) (SP2)

Web browser : Internet Explorer

Version 6.0

Caution:

● When setting the IP address for VN-V25U/

26U, do so by using a network that is made
up only of VN-V25U/26U, the computer for
setting and the switching hub.

● Using a hub connected to other network

devices or networks via a LAN cable for
setting can cause problems.

27

Network Settings

D

IP Address Settings
(continued)

䢇 IP address setting at the computer

Set the computer to an IP address that enables communication with VN-V25U/26U.

1.Click [Start]

● Select in the sequence of [Control Panel]-[Network Connection]-[Local Area].

2.The computer on which Internet Explorer is launched automatically selects the connected

network

● Right-click and select [Properties].

● Check to ensure that the [Client for Microsoft Networks] and [Internet Protocol(TCP/IP)] check

boxes are selected.

3.Select [Internet Protocol(TCP/IP)] and click [Properties]

4.Set the IP address

Select [Use the following IP address].

A

Specify the [IP address]. (For example,

B

use 192.168.0.100 when VN-V25U/
26U is in its default settings and there
is no DHCP server)

Note:

Make sure that you take note of the
original IP address before altering.

Caution:

Ensure that a duplicate IP address is
not specified within the same network
environment.

C

Set [Subnet Mask] to a value that is
appropriate for the setting operation.
Consult the network administrator if
you have any queries.
(Use 255.255.255.0 when VN-V25U/
26U is in its default settings and there
is no DHCP server)

When a [Default Gateway] is present,
make use of the corresponding IP
address (e.g., 192.168.0.254).

E

Click [OK].

5.Click [OK] on the ALocal Area Connection PropertiesB screen

28

䢇 Changing the IP address using the Internet Explorer

1.Launch the Internet Explorer on the computer

2.When proxy settings are enabled in the Internet Explorer, follow the steps below to disable

the proxy of the Internet Explorer

● Select in the order of [Tool]-[Internet Options]-[Connections]-[LAN Setting], followed by

deselecting the check for [Use a proxy server for your LAN] under [Proxy Server] of the [Local
Area Network (LAN) Settings] window.

Deselect the check

3.

If the active script of the Internet Explorer is disabled, follow the steps below to enable it

● Select [Trusted sites] under [Tool]-[Internet Options]-[Security]. Upon doing so, the [Sites…]

button directly below becomes active. Click this button and deselect the check in the displayed
window, and add the following web site to the zone.

http://192.168.0.2

● Next, select [Trusted sites] under [Tool]-[Internet Options]-[Security], and press the [Custom
Level] button. Select [Enable] under [Scripting]-[Alarm] of the [Security Settings] window that
has been opened.

Select [Enable]

29

Network Settings

IP Address Settings
(continued)

䢇 Changing the IP address using the Internet Explorer (continued)

4.Launch the Internet Explorer

Enter the following IP address into the address field.

A

http://192.168.0.2

Click [Go].

B

Note:

● If the proxy server settings for access to the Internet via the Internet Explorer is enabled, you may

not be able to specify the IP address directly. In this case, change the proxy settings of the Internet
Explorer.

● After the [Security Settings] screen appears, press the [OK] button to proceed.

5.Enter the user name and password (login as administrator)

Enter the user name.

A

VN-V25

This is set to AadminB by default.

B

Enter the password.
This is set to Avn-v2xB by default.

30

C

Click [OK].

6.The top page of VN-V25U/26U appears

Click on [Network], followed by [Basic]
on the next submenu.

7.The [Basic] page with the IP address settings appears when DHCP is not in use

A

Set the [IP Setting] item to [DHCP
Disable].

B

Enter the values you wish to specify in
the [IP Address], [Subnet Mask] and
[Default Gateway] fields.

Click [OK].

C

A confirmation screen appears. Press the [OK] button. VN-V25U/26U restarts using the new IP
address. It takes about one minute for the camera to reboot.

Note:

● Access from this computer may fail when the IP address of VN-V25U/26U is changed. To enable

access to VN-V25U/26U from the same computer, alter the IP address at the computer accordingly.

When the display or configuration of the opened screen appears strange, check
using the following procedures.

Click [Start]-[Control Panel]-[Display] and open the [Display Properties] window

A
B Click the [Settings] tab in the [Display Properties] windows and click the [Advanced] button
C Check that [DPI setting] in the [General] tab has become [Normal size(96DPI)]
D Otherwise, change the setting to [Normal size(96DPI)] andreboot windows

31

Network Settings

IP Address Settings
(continued)

When the IP address of VN-V25U/26U is known

When the IP address of VN-V25U/26U is known,
it can be changed by accessing the built-in web
page of VN-V25U/26U via the Internet Explorer
on the computer.
Refer to ASetting Using Internet ExplorerB
(A Page 33).

When the IP address of VN-V25U/26U is unknown

IP address settings cannot be changed by
accessing via a computer when the IP address of
VN-V25U/26U is unknown.
In this case, you can obtain information on the IP
address using the following method.

● The supplied CD-ROM comes with a search

tool. You can use this tool to search for
information on VN-V25U/26U within the LAN.
For details on the search tool, please refer to
the AReadmeB file in the supplied CD-ROM.

32

Setting Using Internet Explorer

Setup

Internet Explorer Setup

1.Launch the Internet Explorer on the computer

2.When proxy settings are enabled in the Internet Explorer, follow the steps below to disable

the proxy of the Internet Explorer

● Select in the order of [Tool]-[Internet Options]-[Connections]-[LAN Setting], followed by
deselecting the check for [Use a proxy server for your LAN] in [Proxy Server] of the [Local Area
Network (LAN) Settings] window.

Deselect the check

3.If ActiveX controls and plug-ins of the Internet Explorer is disabled, follow the steps below to

enable it

● Click [Trusted sites] under [Tool]-[Internet Options]-[Security]. Click on the [Sites…] button
directly below, followed by deselecting the check in the displayed window. Add the following web
site to the zone.

http://192.168.0.2

● Click [Trusted sites] under [Tool]-[Internet Options]-[Security]. Select the [Custom Level] button
and open the [Security Settings] window. Set all items under [ActiveX controls and plug-ins] in
the opened window to [Enable]. Enable also [Allow Script-initiated window without size or
position constraints.] under [Miscellaneous].

33

Setting Using Internet Explorer

Setup (continued)

4.Disable pop-up block

Connection of VN-V25U/26U cannot be
established when pop-up block in the Internet
Explorer is set to AEnableB.
Follow the steps below to set the pop-up block to
AdisableB.

● Selecting [Tool]-[Pop-up Blocker]-[Turn Off

Pop-up Blocker] permits all sites.

● To allow only specific sites such as

VN-V25U/26U, select [Tool]-[Pop-up
Blocker]-[Turn On Pop-up Blocker], followed
by selecting [Tool]-[Pop-up Blocker]-[Pop-up
Blocker Settings] that becomes active to
open the [Pop-up Blocker Settings] window.
In the opened window, add the address of
VN-V25U/26U as a permitted web site
address.

5.When plug-in tools such as the Yahoo or

Google toolbar are included in the Internet
Explorer, disable the pop-up block
function of these plug-in tools as well

Enter user name and password

User name and password entry will be required
at the beginning.
There are three access authorization levels to
VN-V25U/26U. The factory settings are as
follows.

User
Name

admin vn-v2x All operations and

operator vn-v2x Change of settings

user vn-v2x Viewing of images

䢇 Pages that users have access to

Restrictions are placed on the pages that users
have access to. In addition, links on the web
pages are also displayed according to the
access authority of the user.

● admin

Image [View]

External [Alarm]

Network [Basic]

Utility [Maintenance]

Status [Operation]

Default
Password

Description

setting changes are
allowed

other than those
related to network
and maintenance
are allowed

is allowed

[Camera]
[Encoding]
[Audio] (VN-V26U only)

[Alarm Environment]
[Privacy Mask]
[Motion Detection]

[Details]
[Protocol]
[Streaming]
[Access Restrictions]
[Time]
[Password]

[LED State]
[Miscellaneous]

[Settings]

34

● operator

Image [View]

External [Alarm]

Network [Streaming]

Utility [LED State]

Status [Operation]

● user

Image [View]

Utility [Miscellaneous]

[Camera]
[Encoding]
[Audio] (VN-V26U only)

[Alarm Environment]
[Privacy Mask]
[Motion Detection]

[Miscellaneous]

[Settings]

Note:

● The [Security Settings] screen appears

before the top page is displayed. Press the
[Yes] button to proceed.
If you do not want this warning screen to be
displayed, change the Internet Explorer
settings as follows.

● Open [Tool]-[Internet Options]-[Security]
and select the [Trusted sites] icon.

● Next, press the [Custom Level] button,
followed by selecting AEnableB for
[Miscellaneous]-[Display mixed content].

Caution:

● Do not reset or turn off the power of

VN-V25U/26U immediately after the settings
are changed. Otherwise, changes may not be
saved, and VN-V25U/26U may be restored to
the factory settings.

35

Setting Using Internet Explorer

A

C

Setting

View Page

This top page is displayed upon access using any of the user names AadminB, AoperatorB or AuserB.

The camera image is displayed as a still image.
Links to each page are found at the left end. The links displayed vary according to the user name.
For example, in the case of AadminB or AoperatorB, three links, namely [View], [Camera] and [Encoding]
are displayed upon clicking [Image]. In the case of VN-V26U, 4 links, namely [View], [Camera],
[Encoding], and [Audio] are displayed. In the case of AuserB, only [View] is displayed.

(The diagram below shows the [View] page upon access using AadminB or AoperatorB. The number of
links displayed at the left end decreases during access using AuserB, and [JPEG Viewer] and [MPEG4
Viewer] are not displayed.)

Links to each page

36

B

A Reload Still

Image

B

JPEG
Viewer

C

MPEG4
Viewer

Press this button to refresh the displayed still image.
Clicking [View] or re-entering the Internet Explorer address will only display the
page that is temporarily stored in the Internet Explorer, and still images may not be
refreshed.
To refresh still images using the above operations, change the Internet Explorer
settings as follows.

● Open [Tool]-[Internet Options], click the [Settings] button under Temporary

Internet Files, and select AEvery visit to the pageB.

Caution:

● When a firewall is installed between VN-V25U/26U and the computer, still

images may not be displayed on the Image View page of the web browser. For
such systems, check the still images using the built-in viewer. The built-in
viewer supports NAT/NAPT.

This is displayed upon access to the [View] page using AadminB or AoperatorB.
Click this button to display screens such as the [Security Settings] screen. Press
the [OK] or [Yes] button to launch the built-in JPEG viewer.
Do not click on the [JPEG Viewer] button over and over again while leaving the
warning screen unattended.
When this button is clicked for the first time on the operating PC, the built-in JPEG
viewer will be installed on the computer.

Note:

● Refer to AOperation of Built-in ViewerB (A Page 79) on procedures to install the

built-in viewer on the computer and ways to use the built-in viewer.

This is displayed upon access to the View page using AadminB or AoperatorB.
Click this button to display screens such as the [Security Settings] screen. Press
the [OK] or [Yes] button to launch the built-in MPEG4 viewer.
Do not click on the [MPEG4 Viewer] button over and over again while leaving the
warning screen unattended.
When this button is clicked for the first time on the operating PC, the built-in
MPEG4 viewer will be installed on the computer.

Note:

● Refer to AOperation of Built-in ViewerB (A Page 79) on procedures to install the

built-in viewer on the computer and ways to use the built-in viewer.

37

Setting Using Internet Explorer

Setting (continued)

Camera Page

This page is for setting the camera’s parameters.

This page can be used during access using AadminB or AoperatorB.

● Press the [OK] button to enable the new settings.

● If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the

entry will be denied. Press the [Cancel] button to restore the invalid entry to the current value.

● To restore the settings of this page to the factory settings, press [Initialize] button.

A

B

C

D

E

F

G

H

I

J

K

L

M

38

VN-V26U

L

A Camera ID Character strings entered here will be written to the JPEG comment segment

(item name: camera). Refer to the API Guide on the file formats of JPEG.

B

Monitor Type

For selecting the monitor type according to the monitor used to display the
video images. The picture quality varies according to the type of monitor
selected.

Custom : Enables setting of picture quality according to the user’s

preference.

LCD1, LCD2 : Picture quality setting for LCD monitors. Two types are

available for selection according to the user’s preference.

CRT : Picture quality setting for CRT (cathode-ray tube) monitors.

[Set values: Custom, LCD1, LCD2, CRT]

C Black Level For adjusting the black level. Lowering the value darkens the video image.

Increasing the value brightens the image.

[Setting range: 0 ~ 2]

Note:

● If the black level is set to “0”, this may be too low depending on the

monitoring device, or dark area will become complete black.

● When using MPEG4 images, set to either “1” or “2”.

D Gamma To alter the appearance of dark areas in a video image, adjust the gamma

curve.
Off : Do not perform gamma correction. The entire image appears

-3 ~ 3 : Perform gamma correction. When this is set to “0”, standard

[Set values: Off, -3 ~ 0 ~ 3]

dull.

gamma correction is performed. Setting to a smaller value
darkens the image, while increasing the value brightens the
image.

Note:

● The set value is fixed when the monitor type is set to ALCD1B, ALCD2B, or

ACRTB.

E Enhance

Frequency

For setting the type of edge enhancement.

Low : Enhances both thick and thin edges.

High : Enhances thin edges.

[Set values: Low, High]

Note:

● The set value is fixed when the monitor type is set to ALCD1B, ALCD2B, or

ACRTB.

F Enhance Level For setting the intensity of edge enhancement.

Larger value : Increases the intensity of edge enhancement.

Smaller value : Decreases the intensity of edge enhancement.

[Setting values: -5 ~ 0 ~ 5]

G Color Level For adjusting the color level.

Larger value : Increases the color level.

Smaller value : Decreases the color level.

[Setting values: -5 ~ 0 ~ 5]

39

Setting Using Internet Explorer

Setting (continued)

Camera Page (continued)

H AGC For setting the AGC (automatic gain control) level.

Off : Disables the AGC feature

Mid : When the amount of light is insufficient

High : When the amount of light is particularly insufficient

Super : When the brightness level is insufficient even upon setting to

[Set values: Off, Mid, High, Super]

Note:

● This feature cannot be configured when the [Easy Day and Night] is set

to AOnB. (VN-V25U)

● [AGC] cannot be set to AOffB or AMidB when the [B&W Mode] settings

are set to AAuto LowB, AAuto MidB or AAuto HighB. (VN-V26U)

● The screen appears grainy at dark locations when the AGC feature is in

use.

I Sense Up This feature is used to raise the sensitivity level by lengthening the exposure

time.
You can specify the number of times by which the sensitivity level is to be
increased automatically when the object becomes dark. When Ax32B is
selected, the sensitivity is automatically and continuously increased to 32
times of the level when AOffB is selected. When the sensitivity level
increases, the shutter speed slows down, and motion becomes unnatural.
When set to AOffB, [Sense Up] is disabled.

[Set values: Off, x2, x4, x8, x16, x32, x62]

Note:

● Upon raising the sensitivity level, the screen may appear grainy or white,

or white defects may occur. However, this is not a malfunction.

● When [Sense Up] is set to a value other than AOffB, flickers occur under

the light of fluorescent or mercury lamps. This is not a malfunction of the
camera, but is due to principles related to [Sense Up].

● When the shutter is set to a value between 1/50 to 1/10000, set

[Sense Up] to AOffB.

J ALC Priority For setting the priority of ALC (feature for maintaining the video level

according to the brightness of the object). You can select whether to assign
priority to the motion or picture quality when the object becomes dark.

Motion : Assigns priority to motion.

Quality : Assigns priority to picture quality.

[Set values: Motion, Quality]

High.

When the object becomes dark, priority is given to AGC
(automatic gain control), and therefore this is suitable for
shooting fast-moving objects.

When the object becomes dark, priority is given to the
[Sense Up] feature, and therefore this is suitable for shooting
objects requiring a high picture quality.

40

K Shutter Speed For setting the shutter speed.

Auto : Varies the shutter speed automatically according

1/30 ~ 1/10000 : Fixed shutter speed.

Flickerless : Reduces flickers due to fluorescent lamps.

[Set values: Auto, 1/30, 1/50, 1/60, 1/100, 1/250, 1/500,
1/1000, 1/2000, 1/4000, 1/10000, Flickerless]

to the brightness.

Note:

● AAutoB is only recommended when using a manual iris lens.

● Flickers may occur when this is set to a value other than A1/50B, A1/100B,

or AFlickerlessB. When AFlickerlessB is selected, flickers may occur when
the [Sense Up] feature is used.

● When [Sense Up] is set to a value other than AOffB, the shutter speed

cannot be set to a value between 1/50 to 1/10000.

L Easy Day and

Night

(VN-V25U only)

L B&W Mode

(VN-V26U only)

For setting the Easy Day and Night feature.
When this is set to AOnB, the image turns black-and-white when the
luminance level is low.

[Set values: Off, On]

For specifying whether to switch the image to the black-and-white mode.
Auto mode can be specified for switching automatically to the black-and­white mode when the luminance level is low. In auto mode one of three
levels can be selected according to the luminance level.

Color : Switches to the color mode at all times.

Black&White : Switches to the black-and-white mode at all times.

Auto Low : Switches to the black-and-white mode when the

luminance of the signal level of the object is low.

Auto Mid : Switches to the black-and-white mode when the

luminance of the signal level of the object is
medium.

Auto High : Switches to the black-and-white mode when the

luminance of the signal level of the object is high.

[Set values: Color, Black&White, Auto Low, Auto Mid, Auto High]

Note:

● A mechanical sound (that sounds when infrared ray filter is being

plugged or unplugged) will sound when modes are been switched.

● When AAuto LowB, AAuto MidB or AAuto HighB has been selected

VN-V26U will change the mode immediately according to the luminance
level.

M EV

Compensation

For setting EV (Exposure Value) correction. Enables setting between

-9 (-3EV) ~ 6 (+2EV).
You can specify settings in each 1/3 EV step. Decreasing the value darkens
the images, while increasing the value brightens the image.

[Set values: -9 ~ 0 ~ 6]

41

Setting Using Internet Explorer

Setting (continued)

Camera Page (continued)

N

O

42

N White Balance For selecting the white balance control feature. White balance can be

adjusted for a light source with a color temperature range of 2800K to
9500K.

ATW

AWC

One Push
AWC

AWC R-GAIN

AWC B-GAIN

O Back Light

Compensation

Switches to the Auto-Tracking White Balance (automatic color temperature
tracking) mode. Adjusts the white balance automatically according to the
color temperature of the light.

Switches to the Auto-White Balance Control mode. In the AWC mode,
values entered for the [AWC R-GAIN] and [AWC B-GAIN] items are applied
to white balance.

Executes AWC (automatic white balance control).
Execute by placing a white object around the center of the screen in a
location with a lighting condition that is similar to the object to be shot.

● Pressing the [One Push] button replaces the [AWC R-GAIN] and [AWC

B-GAIN] values with the values of the AWC execution results.

● Even when white balance is set to ATW, pressing the [One Push] button

switches the mode automatically to AWC.

For setting the gain of R (red) when in the AWC mode.
Larger value : Increases the redness.

Smaller value : Decreases the redness.

[Set values: 0 ~ 85 ~ 255]

For setting the gain of B (blue) when in the AWC mode
Larger value : Increases the blueness.

Smaller value : Decreases the blueness.

[Set values: 0 ~ 219 ~ 255]

For selecting the backlight compensation feature. Set this feature when
there is a bright light source in the same direction as the object. Enables
unwanted light sources to be excluded from the photometry area.

Off : Disables backlight compensation.

Area1 - 4 : For selecting a photometry area from the four available

types.

[Set values: Off, Area1, Area2, Area3, Area4]

Photometry

Area

Off Area1 Area2 Area3 Area4

Photometry

Area

Photometry

Area

Photometry

Area

Photometry

Area

43

Setting Using Internet Explorer

A

B

CDEFG

Setting (continued)

Encoding Page

This page is for setting JPEG and MPEG4 encoding parameters.

This page can be used during access using AadminB or AoperatorB.

● Press the [OK] button to enable the new settings.

● If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the

entry will be denied. Press the [Cancel] button to restore the invalid entry to the current value.

● When settings on this page are altered during playback using the built-in viewer, reboot the viewer.

● There is a maximum limit to the bit rate for transmission by VN-V25U/26U. If a bit rate that exceeds

the maximum limit is specified, this new setting will not be applied. For details on the maximum
transmission limit, refer to the section on ANetwork RequirementsB (A Page 24).

A Frame Size For setting the frame size of each JPEG or MPEG4 screen to VGA (640 x

480) or QVGA (320 x 240).
Select one of the four different patterns.

When the frame size of JPEG is the same as MPEG4, the privacy mask can
be displayed on both images. When the frame size of JPEG is different from
MPEG4, privacy mask can only be displayed on QVGA images. (A Page

56)

44

JPEG

B Quality/Size For specifying the rate control mode and target file size for JPEG.

When AVFS1B to AVFS7B is selected, the quantization table during JPEG
encoding will be maintained and the file size will increase/decrease
according to the input signals. Stipulated values will be displayed in the Size
field. When recording JPEG data to a recorder with a limited storage
capacity, note that the maximum recording time may vary as the file size
fluctuates under this setting.
When AAFSB is selected, encoding is performed such that the target file size
is the average size of multiple JPEG images. You can enter the target size in
the Size field.

[Quality field set values: VFS1 - VFS7, AFS]
[Size field setting range for VGA: 10kB - 100kB (only when AFS is

specified)]
[Size field setting range for QVGA: 3kB - 33kB (only when AFS is

specified)]

MPEG4

C Bitrate For setting the MPEG4 encoding bit rate.

[Setting range: 64 kbps - 8000 kbps]

D Bitrate Control For selecting whether to set the MPEG4 rate control mode to CBR (Constant

Bit Rate) or VBR (Variable Bit Rate).
CBR : Encoding is performed at a fixed bit rate regardless of the condition

VBR : Changes the bit rate according to the condition of the input video

of the input video signals. Enables easy forecast of the bit rate.

signals. Picture quality is stable, but forecast of the bit rate is
difficult.

E Frame Rate For setting the MPEG4 frame rate.

[Setting range: 1 fps - 30 fps]

F I Frame Interval For setting the I-frame interval. MPEG4 starts encoding from the I-frame.

Shortening the interval stabilizes the picture quality even when there are
rapid changes in the video image. However, the picture quality for images
with little change will deteriorate. In addition, when multicast packet loss
occurs, the time interval required to restore the image is shorter.

[Set values: 30, 60, 90, 120, 150]

G Priority For selecting whether to assign priority to the frame rate or picture quality

during MPEG4 encoding.
FPS : Assigns priority to frame rate. Select this setting to enable

Quality : Assigns priority to picture quality.

smooth monitoring of motion images.

45

Setting Using Internet Explorer

Setting (continued)

Audio Page (VN-V26U only)

This page is for setting the audio parameters.

This page can be used during access using AadminB or AoperatorB

●

To enable the new settings, press the

[OK]

button.

A

B

A Duplex Mode For setting the audio transmission method.

When half duplex is selected, audio sent to computers from the camera is
muted when audio is transmitted from a computer to the camera.
When full duplex is selected, you can send audio to the camera from a
computer while listening to audio sent to computers from the camera

[Set values: Half Duplex, Full Duplex]

Note:

● When AFull DuplexB has been set, there may be cases where echos will

happen as a result of the audio sent from the computer gets picked up by
the VN-V26U’s internal mike. In that case select AHalf DuplexB.

B Mike Gain For specifying the gain value for the built-in microphone of VN-V26U.

[Set values: 0 dB, 20 dB, 26 dB, 32 dB]

46

Alarm Page

ABC D

This page is for setting actions when there is an alarm.
Up to 5 actions (No. 01 - No. 05) may be set.

This page can be used during access using AadminB or AoperatorB.

Press the [OK] button to enable the new settings. Only items that are valid under the selected action

●

will be saved. When Disable is selected for the action, all settings will be restored to their default
values.

● If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the

entry will be denied. Press the [Cancel] button to restore the invalid entry to the current value.

47

Setting Using Internet Explorer

Setting (continued)

Alarm Page (continued)

A Action For specifying the type of action.

Disable : Does not trigger any action.

Mail : Sends out e-mail. Specify the recipient’s mail address.

FTP : Sends out pre-/post-recorded JPEG files via FTP. See the

TCP : Sends out the character string entered in the [TCP/UDP

UDP : Sends out the character string entered in the [TCP/UDP

TCP/UDP Data : Input up to 127 alphanumeric characters.

Output 1 Make : Changes Alarm Output 1 to Make.

Output 2 Make : Changes Alarm Output 2 to Make.

Output 1 Break : Changes Alarm Output 1 to Break.

Output 2 Break : Changes Alarm Output 2 to Break.

䡵 For VN-V26U, you can specify the following items in addition to the above.

BlackWhite B Color : Changes the setting in [B&W Mode] from

Color B BlackWhite : Changes the setting in [B&W Mode] from AColorB

Auto Low : Changes the [B&W Mode] setting to AAuto LowB.

Auto Mid : Changes the [B&W Mode] setting to AAuto MidB.

Auto High : Changes the [B&W Mode] setting to AAuto HighB.

Note:

● For details on [B&W Mode], see [B&W Mode]. (A Page 41)

The title of the mail will appear as [Alarm from VN-V2x]
and the sender as [Camera ID]. Enter the message to send
in [Mail Text]. Input up to 127 alphanumeric characters.
To attach the latest image to the mail, set [Attach Image] to
AOnB.

page on Alarm Environment for details on pre-/post­recording and FTP server settings. (A Page 52)

The maximum transmission rate of FTP is 1 Mbps. If a new
FTP trigger occurs during post-recording, the recorded
portion is treated as pre-recording and a new post­recording starts. During FTP transmission after completing
the post-recording, a new post-recording starts if a new
FTP trigger occurs.

Data] field to the destinations specified in [TCP/UDP IP
Address] and [TCP/UDP Port Number] via TCP.

Data] field to the destinations specified in [TCP/UDP IP
Address] and [TCP/UDP Port Number] via UDP.

Set the alarm output time in the [Alarm Output Duration]
field.

ABlack&WhiteB to AColorB.

to ABlack&WhiteB.

48

B 1st Trigger For specifying the first trigger to be activated.

Either alarm input (make), alarm input (break) or motion detection can be
selected.

䡵 For VN-V26U, you can specify the following items in addition to the above.

BlackWhite B Color : When the image switches from the black-and-

Color B BlackWhite : When the image switches from the color to black-

white mode to color mode

and-white mode.

Note:

● When the second trigger is turned off, the action will be invoked only by

the first trigger.

● When AMotion detectionB, ABlackWhite B ColorB, AColor B BlackWhiteB

is selected as the first trigger, selection of AMax. IntervalB and A2nd
TriggerB will be disabled.

C Max. Interval Enabled when both the first and second triggers are specified.

Specify the maximum interval between the first and second triggers. An
action will be invoked only if the interval between the first and second
triggers is within the maximum interval.

D 2nd Trigger For specifying the second trigger for invoking an action.

Either alarm input (make) or alarm input (break) can be selected. Unlike the
first trigger, AMotion detectionB, ABlackWhite B ColorB, AColor B
BlackWhiteB is not available as an option.

49

Setting Using Internet Explorer

Setting (continued)

Alarm Page (continued)

E

F

G

H

50

E Mail Mail Address : For entering the recipient’s mail address.

Mail Text : For entering the mail transmission data. Input

Attach Image : For specifying whether to attach images to the

up to 127 alphanumeric characters.

mail.

F TCP/UDP TCP/UDP IP Address : For entering the address when alarm action

notification is to be sent via TCP or UDP. (IP or
FQDN)

G Alarm Output

Duration

TCP/UDP Port Number : For entering the port number when alarm action

TCP/UDP Data : For entering the data to send during TCP or

For setting the alarm output time from the alarm output terminal.
When this is set to “0”, it is not possible to revert back to break (or make)
after changing to make (or break).

[Setting range: 0, 100 msec ~ 5000 msec]

notification is to be sent via TCP or UDP. (1 ~

65535)

UDP notification. Input up to 127 alphanumeric
characters.

H Time Filter For specifying the alarm action with respect to each day of the week and

setting the corresponding time of the day.

Applicable day of week : Sunday, Monday, Tuesday, Wednesday,

Alarm action

Unmask Span : For specifying the time period for invoking the

Mask Span : For specifying the time period to stop the action

Unmask All : Activated at all times

Mask All : Stopped at all times

Applicable time period : For specifying the start and end time in hours

Thursday, Friday, Saturday

action

and minutes.

51

Setting Using Internet Explorer

Setting (continued)

Alarm Environment Page

This page is for setting alarm-related environments.

This page can be used during access using AadminB or AoperatorB.

● Press the [OK] button to enable the new settings.

● If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the

entry will be denied. Press the [Cancel] button to restore the invalid entry to the current value.

A

52

B

A Mail For setting the mail environment when [Mail] is specified as an action on the

Alarm page.
[SMTP] and [POP] can be used. Configure only the [SMTP] settings under
usual circumstances.
Enter the camera’s mail address as the recipient’s mail address.
Configure the [POP] settings as well if [POP before SMTP] is enabled. In
addition, if FQDN is set for [SMTP Server], configure also the DNS server
settings on the Basic page. (A Page 61)

Note:

What is FQDN (Fully Qualified Domain Name)?

This is a fully qualified domain name that indicates a notation method of
describing the entire host or domain name on the TCP/IP network without
abbreviating.
For example, if the host name is www and the domain name is victor.co.jp,
this will be denoted as “www.victor.co.jp” in FQDN.

B FTP For setting the FTP environment when [FTP] is specified as an action on the

Alarm page. This is common with the FTP environment when using the
periodic FTP on this page.
When [Directory] is left blank, FTP transfer will be performed to the home
directory of the FTP server. To enable FTP transfer to a directory below the
home directory, set the corresponding directory name in [Directory].
Delimit the directory using “/”.

Example: subdir1/subdir2
Destination directory of FTP transfer will be dependent on the FTP server if

“/” is added at the beginning.
Setting [Periodic FTP] to AOnB enables transfer of the latest JPEG images to
the FTP server at regular intervals. Specify the interval in seconds for
[Periodic FTP Interval].

File name: Select a type from the two types of periodic FTP file names.
When AAutoB is selected, images are generated from the year, month, day,

hour, minute, second, and number.
Example: 20071114161032-001-2.jpg

When AManualB is selected, you can select a file name generation method
from the following.

● File name containing only the character string entered in [User-defined-

name]
Example: Camera1.jpg

● File name with the year, month, day, hour, minute, and second added to

[User-defined-name]
Example: Camera1_20071114161032001.jpg

The name of the file to be transmitted via FTP is made up of the action
number, year, month, day, hour, minute, second, number and trigger flag.

Example: 01-20070711152904-001-0.jpg
The first two digits are the action number, and the following 14 digits denote

the year, month, day, hour, minute and second.
The three digits after the first hyphen is the number of the series of JPEG
files to be sent via the FTP. The number starts from “000”. The last digit
denotes the trigger flag. This is displayed as “1” only for the JPEG file during
a trigger input, and as “0” if otherwise.

53

Setting Using Internet Explorer

Setting (continued)

Alarm Environment Page (continued)

B

C

54

B FTP Time Filter:

For specifying the periodic FTP transfer action with respect to each day of
the week and setting the corresponding time of the day.

Applicable day of week : Sunday, Monday, Tuesday, Wednesday,

Alarm action

Unmask Span : For specifying the time period for invoking the

Mask Span : For specifying the time period to stop the action

Unmask All : Activated at all times

Mask All : Stopped at all times

Applicable time period : For specifying the start and end time in hours and

Pre-/Post-recording parameter:

[PrePostRecording Frame Rate] : For specifying the JPEG frame rate for

[PrePostRecording Before Trigger] : For setting the FTP pre-recording

[PrePostRecording After Trigger] : For setting the FTP post-recording

The maximum time intervals for [PrePostRecording Before Trigger] and
[PrePostRecording After Trigger] are determined by the JPEG size on the
Encoding page as well as [PrePostRecording Frame Rate]. A message
appears if the combination of the entered values are not feasible.

Thursday, Friday, Saturday

minutes.

C Alarm Output For setting the alarm output.

Duration For setting the output time of [Manual Output].

Manual
Output

[Setting range: 0/100 msec ~ 5000 msec]

For operating alarm output manually.
The current output status appears on the right. When [Duration] is set to “0”,
pressing the [Make] button switches the alarm to Make output, while
pressing the [Break] button switches the alarm to Break output.
When [Duration] is set to a value other than “0”, pressing the [Make] button
switches the alarm to Make output only during the duration of the output,
upon which it switches to Break output.
When the output duration is set to a value other than “0”, pressing the
[Break] button switches the alarm to Break output only during the duration of
the output, upon which it switches to Make output.

action

FTP pre-/post-recording.

trigger time (recording time before
alarm input) in seconds.

[Setting range: 0 ~ 60 seconds]

trigger time (recording time after alarm
input) in seconds.

[Setting range: 0 ~ 60 seconds]

55

Setting Using Internet Explorer

Setting (continued)

Privacy Mask Page

Privacy Mask is a feature that enables masking of a portion of the image.
VN-V25U/26U enables privacy masks to be specified in different shapes. The Privacy Mask masks
area by uploading a BMP file painted in red (created separately). The displayed color is determined by
the color specified on this page.

This page can be used during access using AadminB or AoperatorB.

● Press the [OK] button to enable the new settings.

Note:

● When using the [MONITOR OUT] output (A Page 11, 19), the privacy mask cannot be used.

Set the privacy mask to AOffB. After changing the [MONITOR OUT] switch setting, press the Reset
button to reboot the camera.

A
B
C

56

Mask Color Settings Screen

D

A Mode For specifying whether to activate the Privacy Mask feature.

When this is set to AOnB, the privacy mask specified using the following
items will appear on the image.

Note:

● When MPEG4 is set to the same frame size as JPEG, privacy masks are

displayed on both images.

● When MPEG4 is set to a different frame size from JPEG, privacy mask

appears only on the QVGA image.

B Masking Data Get ready the BMP file (VGA or QVGA size) for specifying the position and

shape of the privacy mask on the computer in advance. (Refer to the
following for procedures to create the BMP file.)
Press the [Browse...] button to display the file selection screen. Select the
BMP file that has been created on this screen.
Press the [Upload] button to upload the selected BMP file to VN-V25U/26U.

Creating the BMP file

1. Upon installing the camera, use JPEG Viewer to save the JPEG file on

the computer. (JPEG Viewer: A Page 82)

2. Open the saved JPEG file on the computer using the Paint tool, and paint
the area to be masked in red ((R, G, B) = (255, 0, 0)).

3. Save this image as a BMP file (24 bits).

C Masking Color Press the [Settings] button to display the Masking Color Setting screen.

You can alter the color of the privacy mask.

D Masking Color

Setting

For specifying the color ratio in the red:green:blue format.
Press the [Save] button to set the selected color as the mask color.
Press the [Default] button to restore the default mask color settings.

57

Setting Using Internet Explorer

BC D EF

Setting (continued)

Motion Detection Page

This page is for setting motion detection.

● The area valid for motion detection is displayed in blue.

● The area where motion is detected is displayed in red.

A

58

A Display Screen The screen is divided into blocks of 10 (horizontal) x 8 (vertical). Use this to

set whether to mask each block.
All blocks are masked in the default setting.
The block turns blue when it is clicked, indicating that it is unmasked. Click
again to return to the masked state.
Press the [OK] button to enable this setting.
Use the [Mask All] button to mask all blocks.
Use the [Clear Mask] button to unmask all blocks.

B Detection For setting motion detection to On/Off.

Press the [OK] button to enable this setting.

C OK/Cancel To apply the new parameters, press the [OK] button. Press the [Cancel]

button to cancel the change.

D Level For setting the sensitivity of motion detection.

Increasing the number raises the detection sensitivity level, and hence it is
more sensitive.
Press the [OK] button to enable this setting.

E Mask All Masks all blocks and enables the current motion detection and detection

sensitivity settings.
Press the [OK] button to enable this setting.

F Clear Mask Unmasks all blocks and enables the current motion detection and detection

sensitivity settings.
Press the [OK] button to enable this setting.

Note:

● The area display position serves as a

reference. Make sure to perform operation
check.

● The screen is divided into blocks of

80 (10 horizontal x 8 vertical).
Set the angle of view such that the size of the
object for which motion is to be detected is
larger than the size of multiple blocks.

Caution:

● Flickers of fluorescent lamps may cause

motion detection.

● Changes in brightness due to the light source

may be detected as motion.

● Plugging/Unplugging the infrared ray filter in

black-and-white mode may cause motion
detection (VN-V26U).

● The motion detection feature is not intended

to prevent theft or fire. This feature may not
function properly depending on the
conditions of the object and settings.
Our company shall not be liable for any
accident or damage that occurs.

● When images on VN-V25U/26U are currently

acquired by another client, video images may
not appear on the [Motion Detection] page
due to the maximum distribution limit of
VN-V25U/26U. Stop other clients before
using the [Motion Detection] page.

59

Setting Using Internet Explorer

Setting (continued)

Basic Page

This page is for performing basic setting related to the network.

This page can be used during access using AadminB.

● Press the [OK] button to enable the new settings.

● If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the

entry will be denied. Press the [Cancel] button to restore the invalid entry to the current value.

● When settings of the Basic page is changed, all services that are currently running will end

immediately. For example, when changes are made to the Basic page during JPEG/MPEG4
distribution, distribution will be discontinued and TCP will be disconnected.

A
B
C
D
E
F
G

60

A IP Setting For setting the DHCP client function.

Connect VN-V25U/26U to a network environment with a DHCP server when
DHCP is to be enabled.
If the DHCP server does not exist when DHCP is set to AEnableB, VN-V25U/
26U will start running with the 192.168.0.2 IP address and 255.255.255.0
subnet mask in about 2 minutes after startup.
Refer to AIP Address SettingsB (A Page 27) for the IP address.

B IP Address For setting the IP address of VN-V25U/26U.
C Subnet Mask For setting the subnet mask of VN-V25U/26U.
D Default Gateway For setting the default gateway of VN-V25U/26U.

Set as 0.0.0.0 when a default gateway is not set.

E Host Name For setting the host name of VN-V25U/26U.

Specify a name using alphanumeric characters, hyphen (-) or period (.).
Underscores (_) cannot be used.

F DNS Server For setting the address of the DNS server.
G MAC Address The MAC address of VN-V25U/26U is displayed in a hexadecimal number.

61

Setting Using Internet Explorer

E

Setting (continued)

Details Page

This page is for performing detailed network setting.
This page can be used during access using AadminB.

● Press the [OK] button to enable the new settings.

● If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the

entry will be denied. Press the [Cancel] button to restore the invalid entry to the current value.

The model illustrated in the diagram is VN-V26U.

A

B

C

D

F
G

A JPEG TOS(DS field) For setting the TOS value of IP packets in which JPEG is stored.

The upper six bits out of the eight bits that make up the TOS value belong to DSCP.
This upper six bits can be set. The lower two bits are “0”. For example,
upon setting to “255”, the lower two bits are converted to “0”, and the
value becomes “252”.
TOS values are used in networks that support QoS. By setting QoS for
the network switch, routing can be done by giving priority to packets with
a larger TOS value.

B MPEG4 TOS(DS field) For setting the TOS value of IP packets in which MPEG4 is stored.

For details, refer to the [JPEG TOS(DS field)] item above.

C Audio TOS(DS field)

(VN-V26U only)

D TTL Unicast

For setting the TOS value of IP packets in which Audio is stored.
For details, refer to the [JPEG TOS(DS field)] item above.

For setting the TTL value of JPEG/MPEG4 packets that are to be sent via
TCP.

E TTL Multicast For setting the TTL value of JPEG/MPEG4 packets that are to be sent

via multicast.

F MTU For setting the maximum packet size for storing JPEG/MPEG4.

[Setting range: 1280 ~ 1500]

G Negotiation For setting the negotiation of the network.

When a value other than AAutoB is selected, do not set the network
device to be connected to AAutoB. Ensure that it is set to the same value
as VN-V25U/26U.

62

Protocol Page

This page is for changing the HTTP server port number.

This page can be used during access using AadminB.

● Press the [OK] button to enable the new settings.

● After changing, you will need to re-establish the connection if you are using the Internet Explorer.

A

A HTTP Server

Port

You can change the port number for the built-in web server of VN-V25U/26U.
(1 ~ 65535: The default port number setting is 80.)
The JPEG and MPEG4 HTTP port number for the web server will also be
changed.
During access to VN-V25U/26U from the Internet Explorer, enter the
following in the Internet Explorer when the camera is in its default settings.

http://192.168.0.2
If the port number is changed to 8080, for example, enter the Internet

Explorer as follows.
http://192.168.0.2:8080

Note:

● If the built-in viewer is used for playback, change the HTTP port number in the setting screen of the

built-in viewer to the same value.

63

Setting Using Internet Explorer

D

J

Setting (continued)

Streaming Page

This page is for setting manual multicast transmission.

This page can be used during access using AadminB or AoperatorB.

● Press the [OK] button to enable the new settings.

● If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the

entry will be denied. Press the [Cancel] button to restore the invalid entry to the current value.

ABCD

䡵 VN-V25U

64

䡵 VN-V26U

EFG

A

B

C

H

I

E

G
F

JPEG

A Control For starting or stopping streaming of JPEG images.

Parameters that are set on the [Streaming] page will be saved when
transmission is started upon pressing the [Start] button.

B Destination

Address

For specifying the destination address of JPEG streaming.
Specify the multicast address. When other devices that make use of
multicast transmission exist, ensure that each of them is set to a different
multicast address.

C Destination Port For specifying the destination port number of JPEG streaming.

Specify an even number for RTP compliance.
When other devices that make use of multicast transmission exist, it is
recommended that each of them be set to a different port number.
Multiple multicast streams cannot be received on a single computer when
there are duplicate port numbers.

D Frame Rate For specifying the frame rate when sending JPEG images via multicast.

MPEG4

E Control For starting or stopping streaming of MPEG4 images.

Parameters that are set on the [Streaming] page will be saved when
transmission is started upon pressing the [Start] button.

F Destination

Address

For specifying the destination address for MPEG4 streaming.
Specify the multicast address. When other devices that make use of
multicast transmission exist, ensure that each of them is set to a different
multicast address.

G Destination Port For specifying the destination port number for MPEG4 streaming.

Specify an even number for RTP compliance.
When other devices that make use of multicast transmission exist, it is
recommended that each of them be set to a different port number.
Multiple multicast streams cannot be received on a single computer when
there are duplicate port numbers.

Audio (VN-V26U only)

H Control For starting or stopping streaming of audio.

Parameters that are set on the [Streaming] page will be saved when
transmission is started upon pressing the [Start] button.

I Destination

Address

For specifying the destination address of audio streaming.
Specify the multicast address. When other devices that make use of
multicast transmission exist, ensure that each of them is set to a different
multicast address.

J Destination Port For specifying the destination port number of audio streaming.

Specify an even number for RTP compliance.
When other devices that make use of multicast transmission exist, it is
recommended that each of them be set to a different port number.
Multiple multicast streams cannot be received on a single computer when
there are duplicate port numbers.

Note:

● When the power of VN-V25U/26U shuts down accidentally during multicast transmission, multicast

transmission will restart automatically after VN-V25U/26U is rebooted.

65

Setting Using Internet Explorer

Setting (continued)

Access Restrictions Page

This page is for setting client restrictions.

This page can be used during access using AadminB.

● Press the [OK] button to enable the new settings.

● If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the

entry will be denied. Press the [Cancel] button to restore the invalid entry to the current value.

● This feature is targeted at JPEG/MPEG4 acquisition. It does not impose restrictions on access via a

web browser or use of API.

Caution:

● The Access Restriction feature determines whether to impose restrictions during TCP connection by

the client. In the case when access restriction is set after TCP connection by a client has been
established, TCP connection will not be disconnected.

A

B

66

Destination Address Restrictions may be imposed on clients accessing VN-V25U/26U using the

A Access

Restrictions

IP address.

When AdenyB is selected, acquisition of JPEG/MPEG4 via the IP address
specified for the [IP Address] item will be denied. Restrictions are not
imposed on access to the Web Settings page.
When AallowB is selected, acquisition of JPEG/MPEG4 via the IP address
specified for the [IP Address] item will be permitted. Restrictions are not
imposed on access to the Web Settings page.

B IP Address When a multicast address is specified and AdenyB is selected, VN-V25U/

26U will deny transmission to this multicast address.
When a multicast address is specified and AallowB is selected, VN-V25U/
26U will only accept transmission to this multicast address and deny
transmission to multicast addresses that are not stated in the [IP Address]
field.

Caution:

● Note that when AallowB is selected and all IP

address fields are left blank, JPEG/MPEG4
acquisition by all IP addresses will be denied.
Restrictions are not imposed on access to
the Web Settings page.
Additionally, VN-V25U/26U will also deny
access when instructions for transmission to
the specified IP address are sent via API.

Note:

● To specify a specific IP address range, enter

a combination of the IP address and subnet
mask in the [IP Address] field.

● Define the subnet mask using a length

between 8 ~ 30 bits.
For example, a range between 192.168.0.0
to 192.168.0.255 is denoted as 192.168.0.0/
24 ([IP Address]/[bit length of subnet mask]).

67

Setting Using Internet Explorer

Setting (continued)

Time Page

This page is for setting time.

This page can be used during access using AadminB.

● Press the [OK] button to enable the new settings.

● If the [OK] button is pressed upon entering an invalid value, a warning message will appear and the

entry will be denied. Press the [Cancel] button to restore the invalid entry to the current value.

A
B
C
D
E

A SNTP For setting the SNTP client feature.

When this is set to AOnB, the system accesses the specified NTP server at
regular intervals to acquire the time.
In addition, time will be recorded in the JPEG headers distributed by
VN-V25U/26U. Discontinuity in JPEG header’s time may occur immediately
before and after acquiring time from the NTP server.

B NTP Server For setting the IP address of the NTP server.
C Access Interval For setting the time interval for access to the NTP server.
D Time Displays the time on the clock of VN-V25U/26U.

The clock time can be changed by entering an appropriate value. (Second
value cannot be specified.)
In addition, time will be recorded in the JPEG headers distributed by
VN-V25U/26U. Discontinuity may occur in the JPEG header’s time
immediately before and after changing the time.

E Time Zone For setting the time zone.

68

Password Page

This page is for setting the password.

This page can be used during access using AadminB.

● Press the [OK] button to enable the new settings.

A
B
C

A Username Select a user name.
B New Password Enter a new password.

C New Password

Again

Caution:

● Be sure to handle the password carefully in case you forget it.

● In the event that you forget the password, please consult JVC’s servicing center.

Passwords shall be at least 4 characters and not longer than 16 characters.
VN-V25U/26U is case sensitive.

Enter again to confirm the new password.

69

Setting Using Internet Explorer

Setting (continued)

Maintenance Page

This page is for maintenance purposes.

This page can be used during access using AadminB.

A
B

A All Settings

AInitializeB

Restores all settings to their default values and reboots the unit. (It takes
about one minute for the camera to initialize and reboot.)
Passwords will also be initialized. The built-in clock of VN-V25U/26U will not
be affected. JPEG/MPEG4 transmission and all others services that are
running will be discontinued.

B Update Upgrades the firmware version of VN-V25U/26U and reboots the unit.

The settings of VN-V25U/26U will be saved. Copy the new firmware file to
the computer on which Internet Explorer is used, and specify this file using
the [Browse...] button. Press the [Update] button to start the update. JPEG/
MPEG4 transmission and all others services that are running will be
discontinued. The update process may take several minutes.
A message will be displayed on the Internet Explorer when update is
successfully completed.

Caution:

● Do not turn off the power when update is in progress or during reboot

after update is complete. Turning off the power of the camera may cause
it to malfunction.

70

LED State Page

This page is for setting the method for lighting the [STATUS] indicator at the side of VN-V25U/26U.

This page can be used during access using AadminB or AoperatorB.

● Press the [OK] button to enable the new settings.

A
B

A LED State For selecting whether to light up the [STATUS] indicator of this unit when it is

running.
Enable : Lights up when unit is running.

Disable : Turns off the indicator after startup is complete.

B Identify Unit If you want the [STATUS] indicator to blink such as during visual check of the

camera currently being configured from the computer, set this item to
ABlinkB.

Note:

● The light of the indicator remains off if the LED State is set to ADisableB.

71

Setting Using Internet Explorer

Setting (continued)

List of Factory Settings of Each Page 䡵 Camera Page

Item Factory Settings

Camera ID VN-V25

Monitor Type Custom

Black Level 1

Gamma 0

Enhance Frequency High

Enhance Level 0

Color Level 0

AGC High

Sense Up x4

ALC Priority Motion

Shutter Speed 1/30

Easy Day and Night
(VN-V25U only)

B&W Mode
(VN-V26U only)

EV Compensation 0

White Balance ATW

Back Light Compensation Off

䡵 Encoding Page

Item Factory Settings

JPEG Frame Size VGA

MPEG4 Frame Size VGA

JPEG Quality VFS4

MPEG4 Bitrate 2000 kbps

MPEG4 Bitrate Control CBR

MPEG4 FPS 15 fps

MPEG4 I Frame Interval 30

MPEG4 Priority FPS

䡵 Audio Page

Duplex Mode Half Duplex

Mike Gain 32 dB

(VN-V26U only)

Item Factory Settings

VN-V26

Off

Color

䡵 Alarm Page

Item Factory Settings

Action Disable

1st Trigger Input 1 Make

Max. Interval —

2nd Trigger Off

Mail Address —

Mail Text —

Attach Image Off

TCP/UDP IP Address —

TCP/UDP Port Number —

TCP/UDP Data —

Alarm Output Duration —

Time Filter Unmask All

䡵 Alarm Environment Page

Item Factory Settings

SMTP Server 0.0.0.0

Port Number 25

POP before SMTP Off

POP Server 0.0.0.0

Port Number 110

Username —

Password —

FTP Server 0.0.0.0

Directory —

Username —

Password —

Periodic FTP Off

Periodic FTP Interval 1

Periodic FTP Naming Auto

Periodic FTP Time Filter Unmask All

PrePostRecording Frame
Rate

PrePostRecording Before
Trigger

PrePostRecording After
Trigger

Duration 1000 msec

Manual Output 1 Break

Manual Output 2 Break

15 fps

5 sec

5 sec

72

List of Factory Settings of Each Page
(continued)

䡵 Privacy Mask Page

Item Factory Settings

Mode Off

Masking Color Setting 16 (R, G, B)

䡵 Motion Detection Page

Item Factory Settings

Mask Mask All

Detection Off

Level 4

䡵 Basic Page

Item Factory Settings

IP Setting DHCP Enable

IP Address 192.168.0.2

Subnet Mask 255.255.255.0

Default Gateway 0.0.0.0

Host Name —

DNS Server 0.0.0.0

䡵 Details Page

Item Factory Settings

JPEG TOS 0

MPEG4 TOS 0

Audio TOS

(VN-V26U only)

TTL TCP 64

TTL Multicast 32

MTU 1500

Negotiation Auto

0

䡵 Streaming Page

Item Factory Settings

JPEG Destination
Address

JPEG Destination Port 49152

JPEG Frame Rate 15 fps

MPEG4 Destination
Address

MPEG4 Destination Port 59152

Audio Destination
Address (VN-V26U only)

Audio Destination Port
(VN-V26U only)

225.0.1.1

225.0.2.1

225.0.3.1

39152

䡵 Access Restrictions Page

Item Factory Settings

Access Restrictions deny

IP Address —

䡵 Time Page

Item Factory Settings

SNTP Off

NTP Server 0.0.0.0

Access Interval hour, 1

Time Zone (GMT) UTC

䡵 Password Page

Item Factory Settings

Username AadminB

Current Password Blank

Default passwords
are:

AadminB :vn-v2x

AoperatorB :vn-v2x

AuserB :vn-v2x

䡵 Protocol Page

Item Factory Settings

HTTP Server Port 80

䡵 LED Settings Page

Item Factory Settings

LED State Enable

Identify Unit On

73

Setting Using Internet Explorer

Setting (continued)

Miscellaneous Page

This page is for acquiring information.

This page can be used during access using AadminB, AoperatorB and AuserB.

A

A Open Source

Software

74

Press the [Show] button to display information of the software used by
VN-V25U/26U.

Operation Page

Displays the operating status of VN-V25U/26U.

This page can be used during access using AadminB or AoperatorB.

A

B

C

A Total Sending

Bitrate

B Destination Displays the destination that VN-V25U/26U is sending data to.
C System Log Displays the following information.

Displays the total TCP/UDP bit rate sent by VN-V25U/26U as well as the
individual bit rates.

● Number of seconds after startup

● Alarm information

75

Setting Using Internet Explorer

Settings Page

This page displays the version information and settings of VN-V25U/26U.

This page can be used during access using AadminB or AoperatorB.

76

Settings Page (continued)

77

Setting Using Internet Explorer

Setting (continued)

Settings Page (continued)

78

Operation

Operation of Built-in Viewer

This product comes with a JPEG Viewer and an MPEG4 Viewer. Each of these viewers functions separately.

䡵 Using the JPEG Viewer enables display of a series of still images as well as one-shot recording of still

images.

䡵 Using the MPEG4 Viewer enables display of MPEG4-encoded motion images.

䡵 For VN-V26U, you can send or receive audio using the JPEG/MPEG4 Viewer.

⽧AInternet Explorer SetupB (A Page 79)
⽧AInstalling the built-in viewerB (A Page 81)
⽧AScreen Configuration of JPEG ViewerB (A Page 82)
⽧AJPEG Viewer ConfigurationB (A Page 84)
⽧AExiting the JPEG ViewerB (A Page 87)
⽧AScreen Configuration of MPEG4 ViewerB (A Page 88)
⽧AMPEG4 Viewer ConfigurationB (A Page 90)
⽧AExiting the MPEG4 ViewerB (A Page 93)
⽧AAudio Setup (VN-V26U only)B (A Page 94)
⽧AShortcut for Built-in ViewerB (A Page 96)

When the display or configuration of the opened screen appears strange, check
using the following procedures.

A

Click [Start]-[Control Panel]-[Display] and open the [Display Properties] window

B Click the [Settings] tab in the [Display Properties] windows and click the [Advanced] button
C Check that [DPI setting] in the [General] tab has become [Normal size(96DPI)]
D Otherwise, change the setting to [Normal size(96DPI)] andreboot windows

Internet Explorer Setup

1.Launch the Internet Explorer on the computer

2.When proxy settings are enabled in the Internet Explorer, follow the steps below to disable

the proxy of the Internet Explorer

● Select in the order of [Tool]-[Internet Options]-[Connections]-[LAN Setting], followed by

deselecting the check for AUse a proxy server for your LANB under [Proxy Server] in the [Local
Area Network (LAN) Settings] window.

Deselect the check

79

Operation

Operation of Built-in Viewer
(continued)

Internet Explorer Setup (continued)

3.If ActiveX controls and plug-ins of the Internet Explorer is disabled, follow the steps below to

enable it

● Click [Trusted sites] under [Tool]-[Internet Options]-[Security]. Upon doing so, the [Sites…]

button directly below becomes active. Click this button and deselect the check in the displayed
window. Next, add the IP address of VN-V25U/26U. If the setting is factory default, add the
following web site to the zone.

http://192.168.0.2

● Click [Trusted sites] under [Tool]-[Internet Options]-[Security]. Select the [Custom Level] button

and open the [Security Settings] window. Set all items under [ActiveX controls and plug-ins] in
the opened window to [Enable]. Enable also [Allow Script-initiated window without size or
position constraints.] under [Miscellaneous].

4.If the pop-up block function of the Internet Explorer is enabled, follow the steps below to

disable it

T The built-in viewer cannot be used when the pop-up block function is enabled.

● Selecting [Tool]-[Pop-up Blocker]-[Turn Off Pop-up Blocker] permits all sites.

● To allow only specific sites such as VN-V25U/26U, select [Tool]-[Pop-up Blocker]-[Turn On Pop-

up Blocker], followed by selecting [Tool]-[Pop-up Blocker]-[Pop-up Blocker Settings] that
becomes active to open the [Pop-up Blocker Settings] window. In the opened window, add the
address of VN-V25U/26U as a permitted web site address.

5.When plug-in tools such as the Yahoo or Google toolbar are included in the Internet

Explorer, disable the pop-up block function of these plug-in tools as well

Note:

● To use the built-in MPEG4 Viewer of VN-V25U/26U, install “ffdshow” that is open source codec. You

can download “ffdshow” from the Internet.

80

Installing the built-in viewer

1.Enter the URL of the built-in viewer in the address field of Internet Explorer

For example, if the IP address of VN-V25U/26U is 192.168.0.2, enter as follows:

䡵 VN-V25U

● JPEG Viewer

http://192.168.0.2/cgi-bin/v25viewing.cgi?v25monitor_j.html

● MPEG4 Viewer

http://192.168.0.2/cgi-bin/v25viewing.cgi?v25monitor_m.html

䡵 VN-V26U

● JPEG Viewer

http://192.168.0.2/cgi-bin/v26viewing.cgi?v26monitor_j.html

● MPEG4 Viewer

http://192.168.0.2/cgi-bin/v26viewing.cgi?v26monitor_m.html

Enter the URL in the built-in viewer of this camera.

A

(Refer to the above for the default URL setting.)

B

Click [Go]

2.Enter the user name and password

VN-V25

3.The viewer is installed and launched

Enter the user name.

A

This is set to AadminB by default.

B

Enter the password.
This is set to Avn-v2xB by default.

C

Click [OK].

81

Operation

Operation of Built-in Viewer
(continued)

Screen Configuration of JPEG Viewer

● When the JPEG Viewer is first installed, it is set to play back at 15 fps by default.

Ŷ VN-V25U

A
B
C

82

■

VN-V26U

D

A
B
C
E
F
D

A DisplaySize Switches the display size. (VGA or QVGA)
B Capture Captures the currently displayed image on the computer.

Images captured will be stored as a JPEG file in the folder created under
[My Document] of the computer. The default folder names for VN-V25U
and VN-V26U are AVN-V25UB and AVN-V26UB respectively. The file
name is made up of the year, month, day, hour, minute, second, and
millisecond.
The time denoted by the file name is based on the time at the computer
and not the internal clock of VN-V25U/26U.
Motion images cannot be captured.

C Pause Pauses/Resumes playback of images.
D Setup Displays the built-in viewer settings window. (A Page 84)

This setting screen is used to set the built-in viewer as a software on the
computer.

Caution:

● Settings on this setting screen do not affect settings of the VN-V25U/

26U unit.

E Speech

(VN-V26U only)

Starts sending audio to VN-V26U from the client PC. Only one stream of
audio can be sent for one unit of VN-V26U. You cannot send audio from
another client PC when transmission of audio from a client PC is in
progress.

● The [Speech] button lights up in red during audio transmission.

● [Speech] button will not blink in red when audio cannot be sent.

Note:

● The JPEG and MPEG4 viewers cannot send audio at the same time.

F Audio Setup

(VN-V26U only)

The audio setting screen appears. (A Page 94)

Caution:

● Settings on this setting screen do not affect settings of the VN-V26U

unit.

83

Operation

Operation of Built-in Viewer
(continued)

JPEG Viewer Configuration

The viewer setting window appears upon clicking the [Setup] button of the built-in viewer.

A

B

84

C

DE

A On Screen Display

Settings

Camera ID Select AOnB to display [Camera ID].

Display MD Selecting AOnB displays the area in which motion is detected in red.

Time Select AOnB to display the time.

Format Select the format for displaying time.

For setting display items on the viewer screen.
For the JPEG Viewer, characters are displayed as overlay on the video
image.

[Camera ID] can be specified on the [Camera] page of VN-V25U/26U.
(A Page 39)

This indicates the time that is stored in the JPEG data.

YYYY, MM, and DD denote year, month and day respectively, while HH,
MM, and SS denote hour, minute and second respectively. mm is
equivalent to 1/100 seconds.

B Stream Settings For specifying settings for receiving JPEG stream.

Stream For selecting the protocol when the viewer acquires data from VN-V25U/

26U.
When AHTTPB is selected, lost packets are recovered via resending.
VN-V25U/26U may be monitored using multiple viewers when
AMulticastB is selected.
When playing back via multicast., start multicast sending on the
[Streaming] page of the VN-V25U/26U unit.

Caution:

● When the built-in viewer is launched with AMulticastB specified, a

Windows firewall warning may appear. In this case, select AunblockB
and proceed.

● If AblockB is selected, the Windows firewall will block the multicast

stream and playback of multicast by the viewer will fail.

HTTP Port You can change the HTTP port number.

Frame Rate For selecting the acquisition frame rate of the viewer.

The default port number setting is 80.
Specify the same value as the parameter that is set on the Protocol page
of VN-V25U/26U. (A Page 63)

Selecting a large frame rate will increase the processing load of the
computer on which the viewer is running.

Caution:

● Set to a rate such that the CPU burden of the computer does not

exceed 80 %. When the CPU is overloaded, the computer may not
function properly.

85

Operation

Operation of Built-in Viewer
(continued)

JPEG Viewer Configuration (continued)

Multicast IP
Address

Multicast Port You can change the multicast port number.

You can change the multicast IP address.
The default IP address setting is 225.0.1.1.

The default port number setting is 49152.
This is enabled when AStartB is selected for the [JPEG Control] item on
the [Streaming] page.
Specify the same value as the parameter that is set on the [Streaming]
page of VN-V25U/26U. (A Page 65)

C Folder Name For specifying the name of the folder in which the captured files are

stored. (When the viewer is installed: The folder names for VN-V25U and
VN-V26U are VN-V25 and VN-V26 respectively.)

D OK Saves the changed settings.

Click the [OK] button to enable the new settings and restart the built-in
viewer after closing the setting window.

E Cancel Cancels the changed settings and closes the setting screen.

Note:

● The settings of the built-in viewer are stored

in the file named Cookie.

This setting screen is used to set the built-in
viewer as a software on the computer, and
does not apply to settings of the VN-V25U/
26U unit.
When settings are changed, press the [OK]
button to exit and restart the viewer.

Note:
Searching and deleting cookie files

● Open [Tool]-[Internet Options]-[Advanced]

of the Internet Explorer, and press the
[Settings] button under [Temporary Internet
Files]. A new [Settings] will appear. Press the
[View Files] button in this window. The
[Temporary Internet Files] window opens up
and a list of files will be displayed. The file
named Acgi-binB in this list is the Cookie for
the built-in viewer.

● Deleting this file deletes the view settings,

and the viewer will be initialized during the
next startup.

86

Exiting the JPEG Viewer

To exit, press the [close] button at the top right of the window.

Click [close].

● During the next startup of the built-in viewer, launch the Internet Explorer and enter the URL of the

built-in viewer in the address field.
For example, if the IP address of VN-V25U/26U is 192.168.0.2, enter as follows:

䡵 VN-V25U

http://192.168.0.2/cgi-bin/v25viewing.cgi?v25monitor_j.html

䡵 VN-V26U

http://192.168.0.2/cgi-bin/v26viewing.cgi?v26monitor_j.html

● After the [Security Settings] screen appears, press the [OK] button to proceed.

87

Operation

Operation of Built-in Viewer
(continued)

Screen Configuration of MPEG4 Viewer

Ŷ VN-V25U

A
B

C

A
B

C

88

■ VN-V26U

A

B
D
E
C

A DisplaySize Switches the display size. (VGA or QVGA)
B Pause Pauses/Resumes playback of motion images.
C Setup Displays the built-in viewer settings window. (A Page 90)

This setting screen is used to set the built-in viewer as a software on the
computer.

Caution:

● Settings on this setting screen do not affect settings of the VN-V25U/

26U unit.

D Speech

(VN-V26U only)

Starts sending audio to VN-V26U from the client PC. Only one stream of
audio can be sent for one unit of VN-V26U. You cannot send audio from
a different client PC when transmission of audio from a client PC is in
progress.

● The [Speech] button lights up in red during audio transmission.

● [Speech] button will not blink in red when audio cannot be sent.

Note:

● The JPEG and MPEG4 viewers cannot send audio at the same time.

E Audio Setup

(VN-V26U only)

The audio setting screen appears. (A Page 94)

Caution:

● Settings on this setting screen do not affect settings of the VN-V26U

unit.

Note:

● To use the built-in MPEG4 Viewer of VN-V25U/26U, install “ffdshow” that is open source codec. You

can download “ffdshow” from the Internet.

89

Operation

Operation of Built-in Viewer
(continued)

MPEG4 Viewer Configuration

The MPEG4 Viewer’s settings window appears upon clicking the [Setup] button of the viewer.

A

B

A Title Bar Display

Settings

Camera ID Select AOnB to display [Camera ID].

Time Select AOnB to display the time.

Format Select the format for displaying time.

90

CD

For setting display items on the viewer screen.
For the MPEG4 Viewer, characters are displayed in the title bar of the
window.

[Camera ID] can be specified on the [Camera] page of VN-V25U/26U.
(A Page 39)

YYYY, MM, and DD denote year, month and day respectively, while HH,
MM, and SS denote hour, minute and second respectively. mm is
equivalent to 1/100 seconds.

B Stream Settings For specifying settings for receiving MPEG4 stream.

Stream

For selecting the protocol when the viewer acquires data from VN-V25U/26U.
When AHTTPB is selected, lost packets are recovered via resending.
VN-V25U/26U may be monitored using multiple viewers when
AMulticastB is selected.
When playing back via multicast., start multicast sending on the
[Streaming] page of the VN-V25U/26U unit.

Caution:

● When the built-in viewer is launched with AMulticastB specified, a

Windows firewall warning may appear. In this case, select AunblockB
and proceed.

● If AblockB is selected, the Windows firewall will block the multicast

stream and playback of multicast by the viewer will fail.

HTTP Port You can change the HTTP port number.

Multicast IP
Address

Multicast Port You can change the multicast port number.

The default port number setting is 80.
Specify the same value as the parameter that is set on the [Protocol]
page of VN-V25U/26U. (A Page 63)

You can change the multicast IP address.
The default address is 225.0.2.1.

The default port number setting is 59152.
This is enabled when AStartB is selected for the [MPEG4 Control] item on
the [Streaming] page.
Specify the same value as the parameter that is set on the [Streaming]
page of VN-V25U/26U. (A Page 65)

C OK Saves the changed settings.

Click the [OK] button to enable the new settings and restart the built-in
viewer after closing the setting window.

D Cancel Cancels the changed settings and closes the setting screen.

Note:

● To use the built-in MPEG4 Viewer of VN-V25U/26U, install “ffdshow” that is open source codec. You

can download “ffdshow” from the Internet.

91

Operation

Operation of Built-in Viewer
(continued)

Note:

● The settings of the built-in viewer are stored

in the file named Cookie.

This setting screen is used to set the built-in
viewer as a software on the computer, and
does not apply to settings of the VN-V25U/
26U unit.
When settings are changed, press the [OK]
button to exit and restart the viewer.

Note:
Searching and deleting cookie files

●

Open [Tool]-[Internet Options]-[Advanced] of
the Internet Explorer, and press the [Settings]
button under [Temporary Internet Files]. A new
[Settings] will appear. Press the [View Files]
button in this window. The [Temporary Internet
Files] window opens up and a list of files will be
displayed. The file named
is the Cookie for the built-in viewer.

● Deleting this file deletes the view settings,

and the viewer will be initialized during the
next startup.

A

cgi-binB in this list

92

Exiting the MPEG4 Viewer

To exit, press the [close] button at the top right of the window.

Click [close].

● During the next startup of the built-in viewer, launch the Internet Explorer and enter the URL of the

built-in viewer in the address field.
For example, if the IP address of VN-V25U/26U is 192.168.0.2, enter as follows:

䡵 VN-V25U

http://192.168.0.2/cgi-bin/v25viewing.cgi?v25monitor_m.html

䡵 VN-V26U

http://192.168.0.2/cgi-bin/v26viewing.cgi?v26monitor_m.html

● After the [Security Settings] screen appears, press the [OK] button to proceed.

93

Operation

Operation of Built-in Viewer
(continued)

Audio Setup (VN-V26U only)

Click the [Audio Setup] button of the built-in viewer to display the audio settings window.

A

B

94

D

C

E

A Receive Setup For specifying settings related to receiving of audio sent from VN-V26U.

Receive For specifying whether to receive audio.

Select AOnB to to receive audio.

Note:

● A mechanical sound (that sounds when infrared ray filter is being

plugged or unplugged) will sound when black-and-white mode is
been switched. During the period where the sound is active, other
sounds from VN-V26U will be muted.

Stream For selecting the stream protocol of the received audio.

When AHTTPB is selected, lost packets are recovered via resending.
When AMulticastB is selected, the audio of VN-V26U may be monitored
using a multiple number of client PCs. When receiving data via multicast,
start multicast sending on the [Streaming] page of the VN-V26U unit.

Caution:

● When the built-in viewer is launched with AMulticastB specified, a

Windows firewall warning may appear. In this case, select AunblockB
and proceed.

● If AblockB is selected, the Windows firewall will block the multicast

stream and playback of multicast by the viewer will fail.

Multicast IP
Address

Multicast Port You can change the multicast port number.

You can change the multicast IP address.
The default address is 225.0.3.1
Specify the same value as the parameter that is set on the [Streaming]
page of VN-V26U.(A Page 65)

The default port number setting is 39152.
Specify the same value as the parameter that is set on the [Streaming]
page of VN-V26U.(A Page 65)

B Speech Setup For specifying settings for sending audio to VN-V26U from the computer.

Destination Port You can change the destination port for sending audio to VN-V26U from

Operator
password

the computer. The default port number setting is 49298.

For entering the operator password when sending audio to VN-V26U
from the computer.

C HTTP Port You can change the port number that is used to get audio via HTTP. The

default port number setting is 80.
Specify the same value as the parameter that is set on the Protocol page
of VN-V26U. (A Page 63)

D OK Saves the changed settings.

Click the [OK] button to enable the new settings and restart the built-in
viewer after closing the setting window.

E Cancel Cancels the changed settings and closes the setting screen.

Note:

● Settings of the built-in-viewer are stored in the file named Cookie.

95

Operation

Operation of Built-in Viewer
(continued)

Shortcut for Built-in Viewer

Creating a shortcut for the built-in viewer on the
Desktop screen of the computer saves you the
trouble of having to enter the URL in the Internet
Explorer.
Create the shortcut by following the procedure
below.

1.Launch the Internet Explorer

2.Right-click at an arbitrary point on the

Internet Explorer screen and select
[Create Shortcut]

Click the [OK] button on the confirmation
screen and a shortcut will be created on the
Desktop screen.

3.Right-click on the shortcut icon on the

Desktop screen and select Properties

The setting screen appears.

4.Enter the URL of the built-in viewer in the

URL field

For example, if the IP address of VN-V25U/
26U is 192.168.0.2, enter as follows:

䡵 VN-V25U

● JPEG Viewer

http://192.168.0.2/cgi-bin/
v25viewing.cgi?v25monitor_j.html

● MPEG4 Viewer

http://192.168.0.2/cgi-bin/
v25viewing.cgi?v25monitor_m.html

Note:

● Before starting up the built-in viewer using

the shortcut, close all Internet Explorer
windows. Starting up the built-in viewer using
the shortcut while leaving other Internet
Explorer windows opened may result in
malfunction of the built-in viewer.

䡵VN-V26U

● JPEG Viewer

http://192.168.0.2/cgi-bin/
v26viewing.cgi?v26monitor_j.html

● MPEG4 Viewer

http://192.168.0.2/cgi-bin/
v26viewing.cgi?v26monitor_m.html

5.Click the [OK] button to end

Clicking on the shortcut created saves you
the trouble of having to enter the URL in the
Internet Explorer.

96

Others

Troubleshooting

Symptom Causes and Countermeasures

IP address of VN-V25U/26U
is unknown

The web page of VN-V25U/
26U cannot be displayed

The built-in viewer cannot be
installed

Authentication by Verisign
appears during installation of
the built-in viewer

A warning message appears
upon starting up the built-in
viewer

TCP images cannot be
played back

● DHCP is AEnableB in default settings. IP address

will be provided from DHCP server.

● If there is no DHCP server, VN-V25U/26U will

start using default IP address, 192.168.0.2, and
default subnet mask, 255.255.255.0.

● Search tool in attached CD-ROM is available to

find VN-V25U/26U from a PC in the same LAN.

Check the Internet Explorer settings.
When a proxy server is in use, configure the proxy
server settings of the Internet Explorer accordingly.

Check the Internet Explorer settings.
The built-in viewer consists of a software
component called ActiveX.
The ActiveX is usually installed when the built-in
viewer is used for the first time. However, installation
may be rejected depending on the Anti-virus
software settings. In this case, change the settings of
the Anti-virus software before installing the built-in
viewer.

Verisign’s electronic signature is stored in the built­in viewer.
For computers with a network environment that is
connected to the Internet, the authenticity of the
viewer can be verified via authentication by
Verisign.

The built-in viewer consists of a software
component called ActiveX.
The ActiveX is usually installed when the built-in
viewer is used for the first time. However, installation
may be rejected depending on the Anti-virus
software settings. In this case, change the settings of
the Anti-virus software before installing the built-in
viewer.

The maximum number of images that can be sent by
VN-V25U/26U via TCP is 20, and up to 20 built-in
viewers can be connected to each VN-V25U/26U
unit.
Make use of multicast for monitoring when the
number of areas exceeds the above number.
VN-V25U/26U allows multicast transmission of
JPEG and MPEG4 one stream at a time.

Reference

Page

A Page 32

A Page 33

A Page 79

—

—

A Page 24

97

Others

Troubleshooting (continued)

Symptom Causes and Countermeasures

Multicast images cannot be
played back

The frame rate of the
displayed image is low

A white zone appears in the
built-in viewer

Unable to receive alarm
notification using the
computer via TCP/UDP

Images are not distributed to
the network

● Start multicast transmission manually from the

[Streaming] page of VN-V25U/26U.

● In the case of multicast reception at the built-in

viewer, check that the multicast address and port
number of the built-in viewer settings coincide
with those on the [Streaming] page of VN-V25U/
26U.
Make use of a network that supports IGMPv2 for
multicast transmission.

● Multicast may be blocked by the WindowsXP

firewall. When this occurs, perform the following
to allow it to pass through.
Double-click [Windows Firewall] under [Start]­[Control Panel], click the [Add Port…] button
under the Exception tab, and register the port
number to be allowed through the firewall in the
Port Number field. Enter an arbitrary character
string in the name field.

● Check the built-in viewer settings when a built-in

viewer is in use.

● Frame rate will be constrained when the network

bandwidth is narrow.

● For some computers, a part of the Internet

Explorer graphics may not appear and is left
white when the following setting is performed on
the Internet Explorer.
If [Right-click on the Desktop screen]­[Properties]-[Settings]-[Advanced]­[Advanced]-[DPI setting] is set to ALarge sizeB
or ACustom sizeB, select ANormal sizeB to
resume normal drawing.

● Data may be blocked by the WindowsXP

firewall. When this occurs, perform the following
to allow it to pass through.
Double-click [Windows Firewall] under [Start]­[Control Panel], click the [Add Port…] button
under the Exception tab, and register the port
number to be allowed through the firewall in the
Port Number field. Enter an arbitrary character
string in the name field.

● Check whether the [MONITOR OUT] switch at

the side of VN-V25U/26U is set to ANTSCB or
APA LB. If either of the above is selected, change
the [MONITOR OUT] switch setting to AOFFB.
After changing the switch settings, press the
[RESET] button to reboot.

Reference

Page

A Page 64
A Page 84
A Page 90

A Page 84
A Page 90

—

—

A Page 11

98

Symptom Causes and Countermeasures

The MPEG4 Viewer screen
appears in black

No MONITOR OUT image
output

Zonal noise occurs at the
bottom of the MONITOR OUT
image

Images from the network are
distorted

When DirectX 9.x or Windows Media Player 9.x is
installed on the computer, the video image screen
appears in black.

[Countermeasure]
To make use of the built-in MPEG4 Viewer of
VN-V25U/26U, install “ffdshow” that is open source
codec. You can download “ffdshow” from the
Internet.

● Set the [MONITOR OUT] switch to ANTSCB or

APA LB, and press the Reset button.

● When using the [MONITOR OUT] output, set the

privacy mask to AOffB.

When using the [MONITOR OUT] output, set the
privacy mask to AOffB.

Set the [MONITOR OUT] switch to AOFFB, and
press the Reset button.

Reference

Page

—

A Page 11
A Page 56

A Page 56

A Page 19

99

Others

Specifications

Camera Unit

Pick-up element : 1/4-inch progressive scan

Effective pixels : Approx. 330,000 pixels

Lens Mount : C/CS mount

[Monitor Output]

Composite video x 1 (75 K, 1 Vp-p)
Minimum object illumination:

(VN-V25U) : 1.0 lx (50 %, F1.2, AGC

Minimum object illumination:

(VN-V26U) : 0.6 lx (50 %, F1.2, AGC

Video S/N ratio : 50 dB (Typ., 50 %, AGC

Internal mike (VN-V26U)

Omnidirectional

Output Sensitivity:-43 dB (0 dB = 1 V/Pa)

Standard input level

[Audio Output] (VN-V26U)

Line out ⳯ 1, (

Mini jack ( R3.5 mono)

[Network Output]

Image compression format

Frame size : 640⳯480, 320⳯240

CCD

659 (H) ⳯ 494 (V)

Super)

: 0.5 lx (25 %, F1.2, AGC

Super)

: 0.8 lx (50 %, F1.2, Easy Day

and Night ON)

: 0.4 lx (25 %, F1.2, Easy Day

and Night ON)

Super)

: 0.3 lx (25 %, F1.2, AGC

Super)

: 0.06 lx (50 %, F1.2, AGC

Super, B&W Mode:
Black&White, Auto)

: 0.03 lx (25 %, F1.2, AGC

Super, B&W Mode:
Black&White, Auto)

OFF, Enhance -5)

: 85 dB ± 3 (SPL)

2

00 K Maximum 2.2 Vp-p)

: JPEG, MPEG4

Horizontal resolution

: 400 TV lines (typ.)

Audio compression format (VN-V26U)

: µ-law (64 kbps)

AD/DA 16 bits

Fs = 8 kHz, mono

Network interface

: RJ-45

100BASE-TX/10BASE-T/
FULL/HALF/Auto negotiation
supported

LAN Specifications

Compliant with IEEE802.3, IEEE802.3u and
IEEE802.3af

Communication protocol

: TCP/IP, UDP, HTTP, FTP,

ICMP, ARP, RTP, DHCP,
SNTP, SMTP, IGMP

General

Alarm input : No-voltage a contact input,

NPN open collector input,
low level, latch/momentary
(500 ms and above) (Circuit
current during low level:
1 mA; Applied voltage during
high level: DC 3.3 V)

Alarm output : NPN open collector output

(Allowable applied
voltage: DC 12 V;
Allowable inflow current:
50 mA)

Internal memory : 8 MB

Supply voltage : AC 24 V 50 Hz/60 Hz

or PoE (DC -48 V)

Current consumption

: AC 24 V 0.35 A

PoE 115 mA (5.5 W)
Only while Infrared ray

cut filter is moving
(for VN-V26U)
: AC 24 V 0.5 A
PoE 170 mA (8.2 W)

Ambient temperature

: -10 °C ~ 50 °C (operation)

0 °C ~ 40 °C
(Recommended)

100