Glossary

IP Masquerading

A technology for sharing a single global address between two or more PCs. Allows simultaneous connection of multiple machines to 1 global address to dynamically convert NAT and different TCP/UDP port numbers.

IP 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.

Internet

PC network that connects networks all over the world. Different types of PCs can communicate over the Internet.

LAN

A communications network for connecting PCs, printers 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.

M-JPEG

Video format in which the camera sends continuous JPEG images. Compared with sending images from the camera one at a time, this method reduces the load on the network. However, the transfer rate may change depending on the status of the camera. Images may be represented as a JPEG depending on the camera.

MAC address

Fixed physical address assigned to network devices. Devices send and receive data based on this.

Manual recording

Click the [Recording] button and the [Recording stop] button to manually start and stop recording of video and audio.

Multicast

A way to send the same data to multiple users specified on a network.

Multiscreen Display

This recorder can display multiple camera channels simultaneously while displaying live images or playback images.

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.

POP 3

A protocol for receiving e-mail stored on a server on the Internet or an Intranet.

POP 3 Server

A server that supports POP3, currently the most widely used mail sending protocol.

Plug-in Software

Small programs used to add functions to application software.

PoE (Power over Ethernet)

A technique for supplying power and data simultaneously over an Ethernet cable. PoE was standardized in June, 2003 as "IEEE802.3af".

PoE Supplied Hub

A switching hub that provides PoE functionality. A maximum of 48 V 15.4 W of power can be supplied to cameras and other devices.

Port Number

A sub address set below the IP address to connect multiple parties simultaneously for communication (TCP, UDP, etc.) on the Internet.

Primary Server

DNS servers usually have more than 2 system and the primary server is the main system.

Private Address

IP address assigned when connecting primarily to LAN. Private IP addresses can be assigned freely on a network and do not require a formal application. However, because private IP addresses cannot be used to access the Internet, a router or other device it is necessary to assign a global IP address.

Protocol

A set of rules that allows the exchange of data amongst different types PCs with information. The Internet uses the TCP/IP protocol as its base and information is transferred following http and ftp protocols depending on the application.

Proxy Server

PC or software that connects with the Internet as the proxy for a computer on a local network. It allows special connections from the internal network and blocks unauthorized access from external networks.

RAID (RAID5)

An abbreviation for Redundant Arrays of Inexpensive Disks 5 that provides a highly reliable disk array by distributing access over multiple HDDs, increasing both speed and capacity. Even if one HDD has errors, data can be recovered based on error correction data recorded on other HDDs. (RAID5 is used when 3 or more HDDs are connected. However, when 2 or more HDDs simultaneously have errors, data cannot be recovered.)

RAID (RAID6)

An abbreviation for Redundant Arrays of Inexpensive Disks 6 that provides a highly reliable disk array by distributing access over multiple HDDs, increasing both speed and capacity. Even if two HDD has errors, data can be recovered based on error correction data recorded on other HDDs. (RAID6 is used when 4 or more HDDs are connected. However, when 3 or more HDDs simultaneously have errors, data cannot be recovered.)

Recording rate (ips, I-Frame)

Unit that determines the smoothness when recorded images are played back. "ips" indicates the number of recorded frames in 1 second. When the recording rate is higher, the playback is smoother, but available recording time is reduced. I-Frame indicates the refresh rate set on the camera.

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Panasonic WJ-ND400 manual Glossary

WJ-ND400 specifications

The Panasonic WJ-ND400 is a robust network video recorder (NVR) designed for reliable and scalable surveillance solutions. It serves as a central component in a modern security system, enabling the management and storage of video data from IP cameras. This device is particularly well-suited for a variety of applications, ranging from small retail setups to large enterprise installations.

One of the key features of the WJ-ND400 is its impressive storage capacity, supporting up to 16 terabytes of internal storage. This allows for extended recording times and the ability to retain high-resolution video footage without sacrificing quality. It supports various video compression formats, such as H.264 and H.265, which optimize file sizes and bandwidth use while maintaining clarity.

The WJ-ND400 boasts an intuitive user interface that facilitates seamless configuration and management of the recording settings. Users can access the device through a web browser, providing a convenient way to monitor live feeds, playback recorded footage, and manage camera settings from anywhere with an internet connection. This remote access feature is critical for businesses that require flexible surveillance management.

In terms of connectivity, the NVR supports Power over Ethernet (PoE), allowing for simplified installations by reducing the need for additional power supplies for IP cameras. The WJ-ND400 also utilizes a 10/100/1000 BASE-T Ethernet interface that ensures high-speed data transfer, optimizing the performance of connected devices.

Moreover, the WJ-ND400 is compatible with a wide range of Panasonic IP cameras, enhancing its versatility within a surveillance setup. It supports up to 64 channels of video input, enabling integration of multiple cameras for comprehensive coverage of surveillance areas.

Advanced features include motion detection and scheduled recording, allowing users to customize recording parameters based on specific needs. The NVR can also provide event alerts and notifications, enhancing its capability to respond to security incidents in real time.

In conclusion, the Panasonic WJ-ND400 stands out for its powerful storage capabilities, user-friendly interface, and extensive compatibility with various cameras. Its efficient use of high-quality video compression, combined with robust networking features, makes it an optimal choice for organizations looking to enhance their security infrastructure.