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Video encoder works with Linux-based surveillance systems

May 11, 2007 — by LinuxDevices Staff — from the LinuxDevices Archive — 5 views

Moxa has introduced a single-channel full-motion MPEG-4/MJPEG industrial video encoder peripheral that works with distributed surveillance systems running Linux or Windows. The VPort 351 can provide full D1-resolution video at 30fps, and features 2-way audio and event trigger functions, the company said.

(Click for larger view of the Moxa VPort 351)

Moxa supplies the VPort 351 with Windows drivers and a “SoftDVR” Windows client application. However, the VPort's SDK (software development kit) is compatable with Linux, according to the company. Additionally, the VPort 351 appears to have a simple Web interface for standalone use with any browser.

Moxa VPort 351
(Click to enlarge)

The VPort 351 has redundant 12/24VDC or 24VAC power supplies, and is DIN rail mountable. Touted features include:

  • Two-way audio for real-time communication between central admins and field engineers
  • Pre/post event trigger video function helps determine why alarms triggered
  • 30 frames/sec at D1 (NTSC: 720×480, PAL: 720×576) resolution
  • Available in an extended temperature “351-T” model
  • EMI/ESD, UL508 (pending), and ATEX Class1, Div.2 (pending) safety approvals for use in transportation, utility, and manufacturing systems
  • Enclosure, EMI, and surge protection
  • RTSP and IGMP (multicast) streaming protocols
  • 2 x digital inputs and 2 x relays (outputs) for external sensors and alarms
  • VMD (video motion detection)
  • Built-in web server, telnet, RS-232 control for remote access and configuration
  • RJ45 or fiber optic Ethernet
  • IP30 dust/water infiltration rating
  • Five-year warranty


The VPort 351 is available now. Pricing was not disclosed.

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