Table of Contents
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Glossary
MPEG4
A standard established by Moving Picture Experts Group
that specifies the technologies to encode (or to digitally
convert) video and audio data.
Picture consists of intra-coded picture and predictive-coded
picture as follows.
Example
I
P
P
P
I
GOP
(Group of picture)
I: Intra-coded picture, P: Predictive-coded picture
Copy/Archive
Copy means to write a portion of recorded data stored in the
recorder's HDD in other media. Archive means to copy the
entire recorded data stored in the HDD to another HDD.
Mirroring
Mirroring is to save the exact same data in 2 HDDs during
recording. Even if one HDD fails, the data are still retained.
Repeat recording
A function to overwrite data from the oldest when the
available space of HDD runs out during recording.
Partition
Partition means to divide the data storage area in the HDD
into several sections.
Multiplexer
A function to display video signals supplied from the
connected cameras as one video output.
Main device
Main device is a HDD used for normal recording.
Cascade function
A function to display and switch data stored in cascade-
connected recorders on the monitor connected to the
master unit.
FTP (File Transfer Protocol)
A protocol for transferring fi les on the network.
SNTP (Simple Network Time Protocol)
A protocol for synchronizing the clocks of the personal
computers on the same network using the TCP/IP network.
FPS (Frame Per Second)
An index representing the smoothness of video images. It
indicates the number of images displayed per second.
GOP (Group of Pictures)
A minimum structure comprising a video image pursuant to
the MPEG standard.
138
P
P
P
I
P
P
P
GOP
GOP
Serial bus
Used to connect a mouse, USB memory device, and
external hard disk drive having a USB interface. Some
commercial USB devices don't have compatibility with this
recorder.
Emergency recording
A function to start recording triggered by external switches
connected to the recorder in the event of an emergency.
Images are recorded at the highest picture quality and
the designated recoding rate. (The recording rate varies
depending on the number of recording cameras.)
Bookmark search
A f u n c t i o n t o s e a r c h i m a g e s u s i n g p r e - r e g i s t e r e d
bookmarks.
PTZ
PTZ means panning, tilting, and zooming. PTZ cameras are
turned by external control.
Timer recording
A function to record images according to the timer
programs. For each program, you can designate the
number of cameras to be used as well as the picture quality
and recording rate for each camera and enable or disable
the motion detection.
Motion detection search
A function to detect motion within the recorded image
according to the pre-designated conditions. It is necessary
to designate the detection areas and other settings before
using this function.
DVD (Digital Versatile Disk)
Disc-shaped optical recording media used for recording and
playback of video at high picture and audio quality and for
recording data. It looks like a CD.
Preliminary recording
A function to start recording up to 30 minutes prior to the
start of alarm recording or emergency recording.
CALL OUT
Terminals for outputting signals to inform of occurrence of a
failure or abnormality in the system.
MODE OUT
Terminals for outputting signals to inform of the recorder's
operation mode. You can check the status of these terminals
via network.
Triplex playback
A function to display live video supplied from the cameras
and playback video at the same time while live video is
being displayed in the split screen mode on the monitor.
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Table of Contents
Troubleshooting
