VPort 461A Series

Features and Benefits

  • Supports up to 4 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 ms
  • 2 Ethernet ports for cascading or Ethernet port redundancy
  • DynaStream™ for optimized network efficiency
  • ONVIF support for standardization and interoperability
  • Local storage capability with SD card slot
  • Industrial design with -40 to 75°C operating temperature range


Download Datasheet



The VPort 461A 1-channel industrial video encoder has a H.264 video compression algorithm that helps provide 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 4 video streams simultaneously using H.264 and MJPEG compression formats. Video streams can be used for different purposes, such as viewing, recording, and analysis. In addition, the rugged industrial design, which includes a -40 to 75°C operating temperature and industrial certifications, makes the VPort 461A suitable for harsh environments.

The VPort 461A is equipped with Moxa’s innovative DynaStream™ technology, which allows users to change the video frame rate automatically. With DynaStream™, users can control their network bandwidth budget and simplify network system management. The CBR Pro™ function helps to guarantee the lowest packet loss under limited bandwidth transmissions to ensure that images will not exhibit the mosaic effect.


MicroSD Slot SDXC
Input/Output Interface
Digtal Output Channels 2
Digital Inputs +13 to +30 V for state 1
-30 to +1 V for state 0
Max. input current: 8 mA
Relay Channels 2
Contact Current Rating Resistive load: 1 A @ 24 VDC
Connector Terminal block
Ethernet Interface
10/100BaseT(X) Ports (RJ45 connector) 2
Ethernet Software Features
Protocols TCP/IP, IPv4/IPv6, UDP, HTTP, RTP/RTSP, ARP, UPnP, FTP, TFTP, SMTP, NTP Client, DNS, DDNS, QoS, IGMP v3, ICMP, SNMPv1/v2c/v3, Modbus TCP, HTTPS, 802.1X, NTCIP
Security Functions
Passwords User-level password protection
Filter IP address
Authentication 802.1X
Encryption HTTPS
LED Interface
LED Indicators STAT: Indicates if system is booted up properly or not
Power 1: Power 1 on/off
Power 2: Power 2 on/off
FAULT: Can be configured to correspond to system alarm, power failure, or disconnected network
Video: Video input signal
PTZ: Indicates if PTZ or COM port data has been transmitted
SD: Indicates if SD card was mounted successfully
Network: 10 Mbps or 100 Mbps
Serial Interface
PTZ Port 1, RS-232 or RS-422/485 port, terminal block connector, 115.2 kbps
COM Port 1, RS-232 or RS-485 port, DB9 male connector, 115.2 kbps
Console Port 1 RS-232 port, 10-pin RJ45 (115200, n, 8, 1)
Power Parameters
No. of Power Inputs 2
Input Voltage Redundant dual inputs
Operating Voltage 12 to 32 VDC, 18 to 30 VAC
Input Current 0.85 A @ 12 VDC, 0.3 A @ 32 VDC
0.56/0.85 A @ 30/18 VAC
Power Connector 2-pin terminal block
Video Interface
Video Compression H.264 (ISO/IEC 14496-10) or MJPEG
Video Input 1, BNC connector (1.0 Vpp, 75 ohm)
Video Output via Ethernet
Video Streams 4 independent H.264 or MJPEG video streams
NTSC/PAL Auto-sensing or manual
Video Viewing DynaStream™ support for changing the video frame rate automatically
CBR Pro™ for good image quality in limited bandwidth transmissions
Adjustable image size and quality
Timestamp and text overlay
OSD (On Screen Display) position adjustable
Image manipulation: 180° rotation
Image tuning: control brightness, contrast, saturation
Maximum of 10 simultaneous unicast connections, 50 multicast clients
Audio Interface
Audio Inputs 1 Line-in or MIC-in with 3.5 mm phone jack
Audio Outputs 1 Line-out, with 3.5 mm phone jack
Audio Format Mono, PCM (G.711)
Camera Software Development
VPort SDK PLUS Includes CGI commands, ActiveX Control, and API library for customized applications or system integration for third-party developers
Video Standards ONVIF Profile S
PTZ Camera Control Via PTZ port or COM port
PTZ Control Functions Pan, tilt, zoom, focus, move speed, preset position (max. 128 positions)
PTZ Function Updates Driver upload supported
Protocols Pelco D, Pelco P, Custom Camera
Camera Alarm Software Features
Intelligent Video Camera tampering detection
Video Motion Detection 3 independently configurable areas
Scheduling Daily repeat timing schedule
Imaging JPEG snapshots for pre/trigger/post alarm images
Custom Alarms HTTP event servers for setting customized alarm actions
Email/FTP Messaging Automatic transfer of stored images via email or FTP as event-triggered actions
Pre-Alarm Buffer 50 MB video buffer for JPEG snapshot images
Video Recording Event recordings stored on the SD card
Software Requirements
Memory Size 1 GB
Operating System Windows 7 or above
Browser Internet Explorer 9.x or above
Multimedia DirectX 9.0C or above
Physical Characteristics
Housing Metal
Dimensions 46 x 134 x 105 mm (1.81 x 5.31 x 4.13 in)
Weight 710 g (1.57 lb)
Installation DIN-rail mounting, Wall mounting (with optional kit)
Environmental Limits
Operating Temperature Standard Models: -25 to 60°C (-13 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature (package included) -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Altitude 2000 m
Standards and Certifications
EMI CISPR 32, FCC Part 15B Class A
EMS IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 20 V/m
IEC 61000-4-4 EFT: Power: 2 kV; Signal: 2 kV
IEC 61000-4-5 Surge: Power: 2 kV; Signal: 1 kV
IEC 61000-4-6 CS: 10 V
IEC 61000-4-8 PFMF
IEC 61000-4-11 DIPs
Freefall IEC 60068-2-31
Safety UL 60950-1
Shock IEC 60068-2-27
Traffic Control NEMA TS2
Vibration IEC 60068-2-6
Time 647,088 hrs
Standards Telcordia SR332
Warranty Period 5 years
Details See www.moxa.com/warranty