100
101
FTP (File Transfer Protocol)
A protocol that is commonly used for transferring files
over the Internet.
Full duplex
Communications method that allows simultaneous
sending and receiving by transmitting in both direc-
tions using an independent sending line and receiving
line.
Global (IP) address
IP address assigned to each device connected to the
Internet that is equivalent to an address on the
Internet. IP address is required for Internet communi-
cations. In contrast, IP address freely available to
assigned to each device within an intranet is called as
"Private (IP) address".
H.264
One of the compression methods of moving images.
Half duplex
Communications method that switches between
sending and receiving using a single communications
line.
HDD
Stands for Hard Disk Drive (a high capacity storage
device). This product uses hard disk drives instead of
video tapes for recording.
HD(High Definition)
Resolution with 1280 x 720 pixels.
HVGAW(Half VGA Wide)
Resolution with 640 x 360 pixels.
Image quality
Image quality varies depending on the compression
rate. In this product, the following image qualities
(compression rates) are available and they can be
selected for each camera. SF (Super Fine: Super high
quality), FQ (Fine: High quality), NQ (Normal: Standard
quality)
Internet
A global system of interconnected computer net-
works. It is required to contract with an Internet ser-
vice provider to connect to the Internet.
IP address (Internet Protocol Address)
The identification number assigned to PCs connected
via IP networks such as the Internet or an Intranet, or
to individual communications devices. Do not assign
the same address to multiple devices, especially on
the Internet.
LAN (Local Area Network)
A communications network for connecting PCs, print-
ers and other network devices in a relatively small
area such as in a building or floor of a building or
campus in which data is transferred.
MAC address (Media Access Control address)
Fixed physical address assigned to network devices.
Devices send and receive data based on this.
VMD (Motion detection) search
The function that automatically detects motion in
images. In this product, it is possible to search for
date & time of motion detection in recorded images.
Multiscreen display
This product can display multiple camera simultane-
ously while displaying live images or playback imag-
es. Displaying of images from 4 cameras or from 16
cameras simultaneously is called as the 4-screen dis-
play or 16-screen display respectively.
NAT (Network Address Translation)
A technology for sharing a single global address
between two or more PCs.
NTP (Network Time Protocol)
A protocol developed to accurately maintain time
among hosts on the Internet.
Plug-in software
Small programs used to add functions to application
software.
POP 3 Server
A server that supports POP3, currently the most
widely used mail sending protocol.
POP 3
A protocol for receiving e-mail stored on a server on
the Internet or an Intranet.
Port number
A sub address set below the IP address to connect
multiple parties simultaneously for communication
(TCP, UDP, etc.) on the Internet.
