Product Ranges
CCTV, IP Surveillance, Intercoms, Transmission
Contact Us
  • Moxa Inc.

  • Country: Taiwan
  • City: Taipei
  • Address: Fl. 4, No. 135, Lane 235, Pao-Chiao Rd., Shing Tien City, Taipei
  • Contact Person: Vivian Wu
Key Specifications
The VPort 351 is a high performance, 1-channel industrial video encoder that provides up to full D1 resolution @ 30 FPS and supports a dual MJPEG4/MJPEG algorithm, making it especially well suited for use with distributed surveillance systems in critical industrial applications. In addition, a continuous pre/post event trigger video record function can help system administrators determine why an alarm was triggered. The 2-way audio is provided for the convenience of real-time communication between system administrators located at the central site, and engineers in the field.


I. Intelligent Video Technology

- Video stream of up to 30/25 frames/sec at full D1 (720 x 480/576) resolution

- MPEG4/MJPEG video compression technology

- 2-way (1 in / 1 out) audio supported

- Pre/post-alarm video recording function for advanced surveillance

- Standard RTSP (real-time streaming protocol) for easy integration supported

- Multicast (IGMP) protocols for efficient network transmission supported

- Equipped with 2 DIs and 2 Relays (DO) for external sensors and alarms

- Built-in Video Motion Detection (VMD)

- Built-in web server, Telnet, and RS-232 console for remote access and configuration

- MOXA SoftDVR- Lite IP Surveillance Software and VPort SDK PLUS included free

II. Industrial Rugged Design

- 12/24 VDC or 24 VAC redundant power inputs

- RJ45 or fiber optic Ethernet port for flexible networking choices

- IP30 protection for industrial applications

- DIN-Rail and panel mounting capability

- -40 to 75 deg C operating temperature models for critical and outdoor environments

- EMI/ESD protection, UL508 (pending), and ATEX Class1, DIV.2 (pending) certifications

- Solid 5-year warranty



Video Compression: MPEG4 (ISO/IEC 14496-2), MJPEG (Pending)

Video Input: 1, BNC connector

Video Output: 1, loop-trough BNC connector

NTSC/PAL: Auto-sensing or manual

Video Resolution and FPS (frames per second) :

QVGA: NTSC (320 x 240, Max. 30 FPS), PAL (320 x 288, Max. 25 FPS)

CIF: NTSC (352 x 240, Max. 30 FPS), PAL (352 x 288, Max. 25 FPS)

VGA: NTSC (640 x 480, Max. 30 FPS), PAL (640 x 576, Max. 25 FPS)

4CIF: NTSC (704 x 480, Max. 30 FPS), PAL (704 x 576, Max. 25 FPS)

QVGA: NTSC (720 x 480, Max. 30 FPS), PAL (720 x 576, Max. 25 FPS)

* 4CIF will be supported after V2.0 firmware.

Video Viewing:

- Adjustable image size and quality

- Timestamp and text overlay


Audio Input: 1 Line-in or Mic-in

Audio Output: 1 Line-out


Protocols: TCP, UDP, HTTP, SMTP, FTP, Telnet, NTP, DNS, DHCP, UPnP, RTP, RTSP, ICMP, IGMPv3, PPPoE (Pending), DDNS (Pending), SNMPv3 (Pending)

Ethernet: 1 10/100BaseT(X) auto negotiation port (RJ45), or 1 100BaseFX fiber port (SC connector)

*Serial Port

PTZ port: 1, RS-232 or RS-422/485 Terminal Block connector, Max. 115.2 Kbps

Console port: 1 RS-232 RJ45 port


Digital Inputs:

2, max. 8 mA

¨High〃: +13V to +30V

¨Low〃: -30V to +3V

Relay Outputs (DO): 2 (max. 24 VDC@ 1A)

*LED Indicators

PWR1:power 1

PWR2: power 2

VIDEO: video input signal

AUDIO TEST: Audio input signal test

PTZ: PTZ control signal

FAULT: Can be configured for system alarm, power failure, video loss, or network down

STAT: indicates if the system boots properly


Casing:IP30 protection, metal case

Dimensions (W x D x H ):

52.98 x 135 x 105 mm

2.09 x 5.31 x 4.13 in

Weight: 960 g

Installation: DIN-Rail Mounting, Wall Mounting (with optional kit)

*Power Requirement

Input: 2 12/24 VDC and 24 VAC power inputs with redundancy


Operating Temperature:

0 to 60C (32 to 140F)

-40 to 75C (-40 to 167F) for -T model

Storage Temperature: -40 to 85C (-40 to 185F)

Humidity: 5 to 95% (non-condensing)

*Regulatory Approvals & Warranty

Safety: UL508 (Pending)

Hazardous Location:

UL/cUL Class I, Division 2, Groups A, B, C, and D (Pending)

ATEX Class I, Zone 2, EEx nC IIC (Pending)

EMI: FCC Part 15, CISPR (EN55022) class A


EN61000-4-2 (ESD), level 3

EN61000-4-3 (RS), level 3

EN61000-4-4 (EFT), level 3

EN61000-4-5 (Surge), level 3

EN61000-4-6 (CS), level 3




Shock: IEC60068-2-27

Freefall: IEC60068-2-32

Vibration: IEC60068-2-6


160,000 hrs

Database: MIL-HDBK-217F, GB 25?C


Warranty: 5 years

*Alarm Features

Motion Detection: Video motion detection with object size and sensitivity tuning

Timing Schedule: Daily repeat timing schedule

Pre/Post Alarm:

- JPEG snapshots for pre/trigger/post alarm images

- Pre/post alarm video recording capability with 9 MB memory

Stored Image Transfer: Automatic transfer of stored images via email or FTP with eventtriggered actions


PTZ Camera Control: PTZ camera control through RS-232/422/485

Supported Devices and Protocols: Pelco D-protocol, Dynacolor SmartDOME (Pending), and Custom Camera

Driver: Support PTZ driver upload function


Password Protection:

- User level password protection

- IP address filtering

*Software Bundled Free

MOXA SoftDVR Lite:1- to 4-ch IP Surveillance Software for viewing and recording

* Preliminary specificationssubject to be changed without notice.

VPort 351, Full Motion, 1-channel MPEG4/MJPEG Industrial Video Encoder
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