Table of Contents
Advertisement
Introduction
(continued)
Features
Distribution of 4-channel images to the network
VN-E4 compresses 4-channel video input images in the
JPEG format. For VN-E4U, each channel may be
distributed at a maximum rate of 30 fps. The maximum rate
for 4 channels is 120 fps in total. For VN-E4E, each channel
may be distributed at a maximum rate of 25 fps. The
maximum rate for 4 channels is 100 fps in total. Either VGA
or QVGA may be selected as the frame size. It is also
possible to simultaneously distribute a video input in both
types of frame sizes.
Clients may be able to acquire these JPEG via TCP. Up to
10 JPEG or audio streams may be sent via TCP. For
example, when acquiring 4 JPEG and 1 audio stream via
TCP using the built-in viewer, a maximum of 2 built-in
viewers may be connected to each VN-E4.
Multicast transmission of JPEG is also possible with
VN-E4. Multicast transmission of up to 10 streams is
possible.
Audio distribution to the network
VN-E4 compresses 1-channel audio input in the µ-law
format. Clients may acquire µ-law via TCP. Multicast
transmission of µ-law is also possible with VN-E4.
VN-E4 comes with a built-in echo canceller. Use this during
bi-directional audio transmission.
Reception and output of audio signals from the
network
VN-E4 enables output of µ-law received from the network
as audio signals.
Built-in Viewer
VN-E4 comes with a built-in ActiveX viewer. Monitoring of
VN-E4 images and audio using the PC is possible by
installing this built-in viewer on the PC.
Motion detect and alarm input
VN-E4 is equipped with motion detect function that can
detect motion in each video input. It also comes with a
4-channel alarm input. It is possible to invoke actions such
as notification to clients, alarm output, sending of mails and
JPEG file transfer during detection of motion or alarm input.
Actions may also be invoked using a combination of 2
conditions.
Controlling external devices connected to the
serial port
VN-E4 comes with 2 serial ports. It is possible to control
external devices connected to the serial ports from the
clients.
Controlling external devices
The built-in viewer of VN-E4 may be used to control JVC
cameras and cameras that support the Pelco-D protocol.
Restrictions on Clients
VN-E4 can permit or deny access from clients based on
registered IP addresses.
5
Advertisement
Table of Contents
