Moxa MxNVR Industrial Video Recorder
Introduction
2-2
Overview
The MxNVR-MO4 is a streaming DVR (digital video recorder), which can transmit and record H.264 or MJPEG
video streams simultaneously. With a rugged design that meets EN50155 criteria for power characteristics,
EMC, vibration, shock and temperature (T model, TX temperature level), the MxNVR-MO4 especially excels in
rolling stock IP video surveillance applications. Moreover, the MxNVR-MO4 has passed EN 61373 standard
anti-vibration testing with a 2.5 inch hard disk (purchased separately), delivering highly reliable storage
performance for rolling stock applications. The MxNVR-MO4 can be triggered to record by system boot, by
event, by schedule, or by external commands, such as CGI or SNMP. The embedded DynaStream™ function
increases the network transmission efficiency by dynamically adjusting the video frame rate. To prevent
unauthorized access, advanced 802.1X authentication is available to provide high network security. The
MxNVR-MO4 also supports the OnVIF standard to easily integrate and interoperate with third party systems
and software.
High performance H.264/MJPEG compression
Video input can be efficiently compressed into H.264/MJPEG video stream packets in real time. This is done
without sacrificing remote monitoring capability or storage. Five levels of compression quality and four different
image resolutions provide greater versatility.
Dual video streams for meeting versatile application requirements
The MxNVR-MO4 is a powerful streaming video recorder. Aside from the high quality H.264 video compression,
it can also generate a maximum of two video streams: one H.264 and one MJPEG simultaneously, to meet the
needs of specific applications. For example, the user can view the h.264 video streams with full D1 (720x576)
resolution at 20FPS and record the MJPEG video streams with CIF (352x288) resolution at 20 FPS.
NOTE
When using simultaneous H.264 and MJPEG video streaming at Full D1 (720x576) resolution, the total FPS of
these 2 video streams will be about 25-30 FPS. For example, if MJPEG is set to 10 FPS, then H.264 must be set
at 20 FPS.
Easy-to-use video recording functions
The MxNVR-MO4 supports both IP video streaming and local video recording. With the built-in SATA interface,
the user can attach one 2.5-inch hard disk or SSD (solid state disk) to record the video streams in a continuous
record, event record, or 24-hour daytime schedule record. All of these recording behaviors are easy to set up
and automatically executed once the MxNVR-MO4 is powered.
Moxa DynaStream™ for network efficiency
DynaSteam
TM
is a unique and innovative function that allows for adaptive frame rates in response to events on
the network, such as event triggers and system commands. When network traffic becomes congested,
DynaStream™ allows MxNVR-MO4 or MxNVR-MO series products to respond to CGI, SNMP, and Modbus
commands from SCADA and automatically decrease video frame rates to reduce bandwidth consumption. This
reserves bandwidth for the SCADA system to maintain Quality of Service (QoS) and guarantees that the SCADA
performance will not be impacted by video traffic. For example, the frame rate can be set low during regular
streaming to reduce bandwidth usage and automatically switch to a high frame rate during triggered events to
ensure quick transmission of critical video data or video streams, or to provide detailed visual images for
problem analysis.
Low video latency: under 200 ms (milliseconds)
For some mission-critical applications, low video latency is one of the key requirements. For example, highway
transportation systems monitor very fast moving vehicles; videos displayed at the central traffic control center
need to reflect the latest traffic conditions. Therefore, the video latency must be under 200ms.
Two audio inputs supported for a complete surveillance solution
The MxNVR-MO4 supports two audio inputs for audio streaming from the field site. These 2 audio streams will
be synchronized with the video streams for complete video/audio surveillance applications.
