192.168.0.4
192.168.0.1
192.168.0.2 Switch
Switch
PC
PC
PC
PoE switch
*IEEE 802.3af compliant switch
Switch
Gateway
192.168.0.254
Internet
192.168.0.3
Gateway
Request for image
Image data transmission
Image data transmission
LAN cable (Cat 5)
PoE
Dual
Stream
PC
Recorder
Camera
QVGA
320 x 240 Max.15 fps
640 x 480 Max.5 fps
MPEG-4
JPEG Network
Monitoring by MPEG-4
Recording by JPEG
Network specific information13

IP address

API: UDP, HTTP data and other communication specifications that include
the structure of control data, structure of JPEG data and some examples
of sequence until JPEG data is acquired.
Local IP address range Global IP address range
160 x 120
320 x 240
340 x 480
640 x 480 (fine mode)
Resolution 7654321
2
6
15
17
3
7
16
18
3
8
17
19
3
9
19
21
4
10
24
27
6
15
37
41
9
22
59
65
Compression rate (kB)
Standard controller
2 GB
VN-S400U
No limitation
FAT32
4 GB
NTFS
2 TB
Application software Windows file system
1
2
3
4
5
6
7
8
Green/White
Green
Orange/White
Blue
Blue/White
Orange
Brown/White
Brown
White/Orange
Orange
White/Green
Blue
White/Blue
Green
White/Brown
Brown
TD+
TD–
RD+
——
——
RD–
——
——
Pin No. T568A type T568B type Signal
What is a private (local) IP address?
Private IP address is an IP address that can be used freely as a LAN network
address without being connected to the Internet.
What is a global IP address?
Global IP address is an IP address that is assigned to a device connected to
the Internet. This address is indispensable for carrying out transmissions via
the Internet.
"192.168.0.2" is the IP address set in the initial settings for JVC IP products.
Example:

File size

JPEG recorded file size calculation for 1 camera
JPEG data size per image (approximate data)

JPEG network traffic

RJ-45 connector assign

Data size per image x Frame rate x 8(bit/byte) x 1.2(overhead)
= JPEG network traffic
Example:
Q: What is the network traffic if the camera setting is resolution 320 x 240,
compression rate 2 and frame rate 5 fps ?
A: 15(kB) x 5(fps) x 8 (bit/byte) x 1.2 = 720 (kbps)

Dual Stream (MPEG-4 & JPEG)

As example, simultaneously able to use both monitoring by smooth MPEG-4
picture and recording by high quality JPEG.
Example:
Camera setting: Resolution 320 x 240, Compression rate 2, Frame rate 2 fps
Q: What is the file size for 1 day recording ?
A: 15(kB) x 2(fps) x 86,400 (s) = 259,200 (kB) = 2.59(GB)
Q: How many days is the recording possible with 40 GB HDD ?
A: 40(GB) ÷ 2.59(GB) = 15.444 = 15 (days)
Maximum recorded file size
The maximum recorded file size vary depending on the application and
Windows file system.
Maximum recorded file size (JPEG)
For long recording, it is recommended to use VN-S400U and NTFS file
system. The VN-S400U possesses a function that allows them to
automatically separate recording files every hour on the software side.
For example, if you record for three days straight, 72 recording files will
automatically be created. (24 hours/day x 3 days = 72 hours)

Simultaneous access by multiple users

The frame rate (or bit rate), which refers to the number of images that can be
transmitted by JVC IP products within a second, is decided according to the
specifications of JVC IP products. Within the range of specification
approximately 10 users can simultaneously access JVC IP products.
However, when a large number of users simultaneously access JVC IP
products, there may be a decline in the frame rate or image quality.

Unicast and Multicast

Unicast transmission
Since unicast involves one-to-one transmission between two terminals (e.g.
between a camera and a monitoring PC), it is necessary for the bandwidths
to be equivalent to the number of terminals when identical information is to
be acquired by several terminals.
Multicast transmission
Since multicast is used to transmit a single packet to multiple terminals, the
data transmission volume decreases regardless of the number of terminals.
Multicast requires a compatible network device.
* Remote surveillance via the Internet cannot be carried out with a multicast system.
* Multicast systems require an optimum network design.

Alarms

JVC IP products has two inputs and two outputs alarm terminals (except VN-E4U:
input x 4/output x 1). Either a less voltage a-contact or c-contact output-type
alarm input sensor should be employed. Since alarm output is NPN open
collector output, NPN open collector output must be converted to less-voltage
a-contact output when using a general sequencer. In addition, it is important
to note that the GND must be connected to a control device. In the event that
the control device has no GND, the JVC IP products GND should be connected
to the COM terminal. When distributing an alarm to several multi-viewers
(VN-S400U) with a single camera, it is possible to register up to 5 distribution
addresses for up to 10 for JVC's JVC IP products (except VN-C20U).

Technical information for software developers

In order to receive these JVC confidential technical information, please
contact local JVC sales office and enter into the license and non-disclosure
agreements. These information are supplied on royalty free basis.
Local JVC sales office :
http://www.jvc-victor.co.jp/english/company/contacts/hqpage_a2.htm
The following technical information are available for integrating JVC IP
products cameras into customers own application software or system.

PoE (Power over Ethernet)

PoE supplies the electric power to the network camera by using LAN cable
(Cat 5). Easy installation like JVC analog cameras is available with single
cable. It doesn't require data cable and AC power cable separately.
PoE compliant network switch or power injector is required for PoE installation.
41JVC Video Surveillance Products 2006-2007
Technical Information http://pro.jvc.com
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