Feature and Benefits

  • Supports up to 3 video streams simultaneously for H.264 and MJPEG
  • Up to Full D1 resolution (720 x 480) @ 90 FPS for 3 video streams with legacy analog video images
  • Video latency under 200 msIndustrial IP Surveillance for Mission-Critical Applications
  • 2 Ethernet ports for cascade and Ethernet port redundancy
  • Moxa DynaStream™ function support for network efficiency
  • ONVIF support for standardization and interoperability
  • Local storage capability with SD card slot
  • Industrial design with -40 to 75°C operating temperature


The VPort 461A 1-channel industrial video encoder with H.264 video compression algorithm provides the best video quality on the market, but with a smaller bandwidth requirement than other video compression standards. In addition, to meet various video stream requirements, the VPort 461A can provide up to 3 video streams simultaneously using H.264 and MJPEG compression formats. Video streams can be used for different purposes, such as viewing,recording, and analyzing. In addition, the industrial rugged design, which includes a -40 to 75°C operating temperature, IP30 protection, and industrial certifications, make the VPort 461A suitable for harsh environments.

The VPort 461A is equipped with Moxa’s innovative DynaStream™ technology to reduce bandwidth consumption of your video transmissions when the network is over-loaded by automatically decreasing the video frame rate. DynaStream™ can also increase video FPS when emergencies occur, offering total control of bandwidthusage to network administrators.

• Video
Video CompressionH.264 (MPEG4 part 10), MJPEG
Video Inputs1 (BNC connector)
Video Outputvia Ethernet
Video Streams3, H.264 or MJPEG video streams
NTSC/PALAuto-sensing or manual
Video Resolution and FPS (frames per second)
Video Viewing• DynaStream™ support for changing the video frame rate automatically
• Adjustable image size and quality
• Timestamp and text overlay
• Maximum of 10 simultaneous unicast connections, 50 multicast clients
• CBR Pro™ support for accurate streaming bit rate control
• Image manipulation: 180° rotation
• Image tuning: control brightness, contrast, saturation
• Audio
Audio Inputs1 Line-in or mic-in with 3.5 mm phone jack
Audio Outputs1 Line-out with 3.5 mm phone jack
Audio FormatMono, PCM (G.711)
• Network
ProtocolsIPv4/v6, UDP, HTTP, SMTP, FTP, NTP, DNS, DHCP, UPnP, RTP, RTSP, ICMP, IGMPv3, QoS (ToS), SNMP V3, DDNS, Modbus/TCP, 802.1X, SSH/HTTPS
Ethernet2 10/100BaseT(X) Ethernet ports, RJ45 connector
• Serial Port
PTZ Ports1 RS-232 or RS-422/485 port, terminal block connector, 115.2 kbps
COM Ports1 RS-232 or 485 port, DB9 male connector, 115.2 kbps
Console Port1 RS-232 port, RJ45 connector
• Local Storage
SD SocketStandard SD socket, V2.0 (SDHC)
Digital Inputs2, max. 8 mAHigh: +13 to +30 V; Low: -30 to +3 V
Relay Outputs2, max. 24 VDC @ 1 A
• LED Indicators
STATIndicates if system is booted up properly or not
PWR1Power 1
PWR2Power 2
FAULTCan be configured to correspond to system alarm, power failure, or disconnected network
VIDEOVideo input signal
PTZIndicates if PTZ or COM port data has been transmitted
SDIndicates if SD card was mounted successfully
• Power Requirements
Input Voltage12 to 32 VDC, or 18 to 30 VAC
Input Current0.85 A @ 12 VDC; 0.3 A @ 32 VDC; 0.85 A @ 18 VAC; 0.56 A @ 30 VAC
• Physical Characteristics
HousingMetal, IP30 protection
Dimensions46 x 134 x 105 mm (1.81 x 5.31 x 4.13 in)
Weight710 g (1.57 lb), including DIN-rail mounting kit
InstallationDIN-rail mounting (standard), wall mounting (optional)
• Alarms
Intelligent VideoCamera tampering
Video Motion DetectionIncludes sensitivity tuning
SchedulingDaily repeat timing schedule
ImagingJPEG snapshots for pre/trigger/post alarm images
Custom AlarmsHTTP event servers and CGI events for setting customized alarm actions
Email/FTP MessagingAutomatic transfer of stored images via email or FTP with event-triggered actions
Pre-alarm Buffer50 MB for JPEG snapshot images
• PTZ (Pan/Tilt/Zoom)
PTZ Camera ControlVia PTZ port or COM port
PTZ Control FunctionsPan, tilt, zoom, focus, moving speed, preset position (max. 128 positions)
PTZ Function UpdatesDriver upload supported
Supported Device ProtocolsPelco D, Pelco P, Custom Camera
• Security
PasswordUser level password protection
FilteringBy IP address
EncryptionHTTPS, SSH
• Environmental Limits
Operating TemperatureStandard Models: -25 to 60°C (-13 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity5 to 95% (non-condensing)
VibrationIEC 60068-2-6, 2 to 13.2 Hz: 2 mm (peak-peak); 13.2 to 100 Hz: 0.7g; 1.50 hrs/axis
IEC 60068-2-6, 3 to 9 Hz: 7 mm (peak-peak); 9 to 150 Hz: 1.0g; 1.86 hrs/axis
ShockIEC 60068-2-27, 20g/11ms
Altitude2000 m
Ingress ProtectionIEC 60529, IP30
• Standards and Certifications
SafetyUL 60950-1
EMCEN 55032/24
EMICISPR 32, FCC Part 15B Class A
EMSIEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m
IEC 61000-4-4 EFT: Power: 2 kV; Signal: 1 kV
IEC 61000-4-5 Surge: Power: 2 kV; Signal: 2 kV
IEC 61000-4-6 CS: 10 V
IEC 61000-4-8
IEC 61000-4-11
TransportationNEMA TS2
• MTBF (mean time between failures)
Time647,088 hrs
StandardTelcordia SR332
• Warranty
Warranty Period5 years
DetailsSee www.moxa.com/warranty
• Minimum Viewing System Requirements
CPUPentium 4, 2.4 GHz or above
Memory512 MB memory or above
OSWindows XP/2000 with SP4 or above, Windows Vista, Windows 7
BrowserInternet Explorer 9.x or above
MultimediaDirectX 9.0c or above
• Software Development
VPort SDK PLUSIncludes CGI commands, ActiveX Control, and API library for customized applications or system integration for third-party developers (the latest version of SDK is available for download from Moxa’s website).
StandardONVIF, Profile S

Available Models

Model No.Description
VPort 461A1-channel H.264/MJPEG industrial video encoder with 2 10/100BaseT(X) ports, -25 to 60°C operating temperature
VPort 461A-T1-channel H.264/MJPEG industrial video encoder with 2 10/100BaseT(X) ports, -40 to 75°C operating temperature

Optional Accessories

 DIN Rail Power Supplies

Model No.Description
MDR-60-2460W/2.5A DIN-Rail 24 VDC power supply with universal 85 to 264 VAC or 120-370 VDC input, -20 to 70°C operating temperature
MDR-40-2440W/1.7A DIN-Rail 24 VDC power supply with universal 85 to 264 VAC or 120-370 VDC input , -20 to 70°C operating temperature

 IP Surveillance Software

Model No.Description
SoftNVR-IA64-channel IP video surveillance software designed for industrial automation systems

 Other Accessories

Model No.Description
DR-4524/75-24/120-2445/75/120 W DIN-Rail 24 VDC power supplies

 Mounting Kits

Model No.Description
WK-46Wall Mounting Kit
RK-4U4U-high 19″ rack mounting kit