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Preface
The Network Disk Recorders WJ-ND300A is designed for use within a surveillance system.
The network disk recorder is a recording device using a hard disk drive to record pictures of network cameras instead of using
videotapes so that pictures recorded by repeated overwriting will not experience deterioration of the recorded picture quality.
Up to 32 cameras can be connected to the WJ-ND300A via a network and it is possible to record their camera pictures. It is
possible to perform the settings or operate the unit using a web browser installed on a PC when this unit is connected to a net-
work.
Features
Various Recording Functions
• Multi-Recording
It is possible to perform multiple recordings using a sin-
gle digital disk recorder even if the operating environ-
ments are different, for example, recording pictures of
cameras in different places with different recording
rates.
• Schedule recording
It is possible to perform recording automatically at a
scheduled time on a designated day of the week. It is
also possible to apply different recording settings, such
as the recording rate, by the schedule time.
• Emergency Recording
In the case of an emergency, emergency recordings
will be given a higher priority than other recording
modes by operating an external switch.
• External Timer Recording
It is possible to perform recording automatically using
an external timer.
• Event Recording
At an event occurrence, such as when an alarm signal
is supplied, the recording rate can be changed.
Downloading/Transmitting Images
It is possible to download (save) the currently displayed
image in the web browser window onto the hard disk of a
PC. By establishing an FTP server, it is possible to transmit
images to a designated FTP server. When an event occurs,
it is possible to transmit images from the camera installed in
the place where the event occurred.
Security Function and Reliability
• Authentication function (registration of ID and pass-
word) allows users access to a predetermined selection
of the available functions. Up to 32 users can be regis-
tered.
• If a hard disk crashes, the RAID 5 function (*1) prevents
any data loss.
*1: To use the RAID 5 function, an optional extension
unit is required.
Host Authentication
It is possible to restrict devices from operating this unit if
their IP addresses are not registered.
