Glossary

Words used in the manual

This manual uses the following words.

ActiveX Control

A software module developed by Microsoft. It is used to add functions, downloaded from a web server via the Internet or an Intranet, to Internet Explorer. The recorder uses it to display video.

Bit rate

Indicates how many bits of data can be processed or transmitted in a unit of time. Generally, the units are in bps, or bits per second. Used to indicate the compression rate of video and audio data, and how much data a communications line can send and receive in 1 second.

Broadband Router

Router used to access the Internet via high-speed ADSL or fiber optic lines.

Cable Modem

Device used for connecting to the Internet via a CATV line. Called a cable modem because it functions similar to a modem on a phone line. It differs from regular modems that use a serial port in that it is connected to a PC via an Ethernet connection.

Camera operation

Operations of the camera connected to the recorder such as pan and tilt (horizontal and vertical position), zooming, focusing, brightness, preset motions (movement towards a set horizontal and vertical position) and auto functions (automatic camera rotation, etc.).

DDNS

A technology for dynamically translating DNS server information to enable the transfer of only differences in information between DNS servers (refer to "DNS"). This reduces the data transfer amount necessary for updating information on the DNS server and reduces the load on the network.

DHCP

A protocol that enables PCs to automatically get information from a server needed for accessing a network.

DHCP Server

Maintains network-related information (assigns IP address ranges to (default) gateway servers and clients), and distributes that information when clients request it.

DNS

The long lists of numbers or IP addresses that are used in network environments are difficult to remember, which makes them impractical. This is why PCs are given an easy-to-follow name (domain name) which is converted to an IP address before they are communicated with. The DNS provides translation between domain names and IP addresses.

Default Gateway

Network device used as a gateway for networks, such as a local network, to access PCs on an external network. Data is sent using the default gateway if a gateway is not specified in the destination IP address.

Disk Configuration

Configure the HDD after replacing, removing, or adding a HDD. Disk Configuration is the menu for configuring the HDD.

Electronic Zoom

Enlarges live images and playback images during playback. The electronic zoom enlarges the images by the recorder and is separate from the zoom function included as part of the camera operations for enlarged images.

Emergency Recording

Gives priority to recording video and audio when an emergency occurs using the external switch connected to the recorder.

Ethernet

LAN communication developed by Xerox.

Event

Indicates an occurrence that causes the recorder to take an event action. Events include, terminal alarms, command alarms, and site alarms.

Event recording

Function that automatically starts video and audio recording when an event occurs. Event recording includes Pre-event recording that records images before the event and Post-event recording that records images after the event.

External Recording Mode

Use the external switch connected to the recorder to switch to time tables such as the recording settings and event action settings.

FTP

A protocol that is commonly used for transferring files over the Internet.

Firewall

A type of security used when accessing outside networks like the Internet.

Full Duplex

Communications method that allows simultaneous sending and receiving by transmitting in both directions using an independent sending line and receiving line.

Global 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 communications.

HDD

Abbreviation for hard disk drive, a type of mass storage device. Camera images are recorded onto a hard disk drive.

HTML

HTML is a markup language used for describing the logical structure of a document and its appearance. Links to images, audio, video and other documents can be inserted into the document. A web browser is used to view documents written in HTML.

Half Duplex

Communications method that switches between sending and receiving using a single communications line.

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.

Panasonic WJ-ND400 manual Glossary

Models: WJ-ND400