User`s manual

VPort 251 User’s Manual Introduction
Multicast (IGMP) transmission for network efficiency
Transmitting digital video images via an IP network requires a dozen times the bandwidth required
for transmitting general data. For this reason, the efficiency of network bandwidth management is
one of the most important issues that determines the performance of a video over IP surveillance
system. The VPort 251 supports multicast transmission with IGMP protocol, which can reduce the
bandwidth requirements when multiple clients access the same video stream, and greatly increases
the efficiency of network bandwidth management.
Easy web access using standard browsers
There is no need to install new software to access the video encoder, since the embedded web
server allows users to use any popular web browser to access the video encoder from anywhere
over the Internet. As long as you are connected to the network, you will be able to view the same
images seen by your cameras.
Support for SNMP V1, V2c, and V3 for easy network management
More and more IP devices are networked for use on one TCP/IP network. To make management
and maintenance easier, SNMP (Simple Network Management Protocol) can be used to monitor
all of these IP devices.
Built-in 3 area-selectable Video Motion Detection (VMD)
External sensors are not required, since the video channel can be configured to detect motion in 3
areas, making it easy to set up a security system in either your office or the field. And the
customizable settings allow you to tune the system for both object size and sensitivity, making the
video encoder adaptable to different environments.
Weekly schedule for automated surveillance
The user-defined time period will check security settings on a weekly basis, and send notifications
or drive external devices, making the VPort 251 suitable for more versatile applications.
Flexible I/O control for external devices
1 opto-isolated sensor inputs and 1 relay outputs are provided to control external devices, giving
system integrators the option of turning an analog system into an advanced security system.
Moxa SoftDVR Lite IP Surveillance Software
To extend the video encoder’s capabilities, Moxa SoftDVRTM Lite IP Surveillance Software,
which supports a maximum of 4 cameras in quad, is included free of charge, allowing users to turn
their PC into a digital video recorder. Scheduling or one-click recording saves important images
on your local hard disk, and the reliable motion detection and instant warning features make you
ready for any situation. A quick and easy to use search and playback function lets you easily find
the image you’re looking for, so that you can inspect the images more carefully, and also save the
output to an AVI file.
SDK support for developers
The high-performance video encoder can be integrated into many applications—without busting
your budget—and the complete programming interface of Moxa VPort SDK PLUS makes the
developer’s job easy and straightforward. To ask about SDK requirements, please contact a Moxa
sales representative for details and an application form.
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