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Rectangular black metal decoder unit with HDMI and Ethernet ports visible

Panasonic

Panasonic WJ-GXD400 Multi-Channel Video Decoder 1920x1080 HDMI

SKU CH-JJT3-T229F MPN WJ-GXD400

Multi-channel video decoder displays up to 256 cameras at 1920x1080 via HDMI with split-screen layouts and alarm integration

  • TypeProfessional Video Devices
  • HDMI output at 1920 x 1080 for clear Full HD monitoring
  • Decodes up to 256 registered cameras across the network
  • Split-screen flexibility with one 1280 x 960 image or six VGA views
  • Single-channel G.726 audio decoding adds sound to the video stream
  • 64 programmable camera groups with schedule and tour sequencing

Professional Video Decoder

The Panasonic WJ-GXD400 is a multi-channel video decoder designed for professional surveillance installations. It connects via 10/100 Ethernet and outputs video through an HDMI interface at 1920 x 1080 resolution. The unit handles JPEG and MPEG-4 compression streams from network cameras and encoders. It is built for continuous operation in security control rooms and monitoring centres.

Suitable Applications and Limits

This decoder suits operators who need to view multiple camera feeds simultaneously on a single display. Split-screen modes allow one 1280 x 960 image combined with two or six VGA streams. It supports tour sequences, group sequences and schedule programmes for automated monitoring. Buyers requiring higher than 1080p output resolution or audio decoding beyond single-channel G.726 should look at other equipment.

Deciding Specification

The HDMI output is fixed at 1920 x 1080 display size, which determines the maximum visible detail across all split-screen layouts. Network bandwidth is limited to 100 Mbps through the Ethernet interface, capping the total incoming stream throughput. Up to 256 cameras and encoders can be registered, with 64 groups available for sequence programming.

Highlights

  • HDMI output at 1920 x 1080 for clear Full HD monitoring
  • Decodes up to 256 registered cameras across the network
  • Split-screen flexibility with one 1280 x 960 image or six VGA views
  • Single-channel G.726 audio decoding adds sound to the video stream
  • 64 programmable camera groups with schedule and tour sequencing

Specifications

TypeProfessional Video Devices

Questions about this item

How do I connect the WJ-GXD400 to my network and what is the common oversight?

Connect the 10Base-T/100Base-TX Ethernet port to your switch, then configure TCP/IP, UDP/IP, HTTP, RTP, DHCP, DNS, DDNS and NTP settings; the step often missed is enabling multicast or unicast for each camera stream.

Which components of the decoder require periodic attention or replacement?

The unit has no user-serviceable parts; maintenance is limited to firmware updates for the JPEG and MPEG-4 decoding engine, G.726 audio decoder and network protocol stack.

At what point does the split-screen display hit its hard limit during continuous operation?

The decoder can show up to 256 registered cameras, but only 64 camera groups and a maximum of six VGA images per screen at 25 or 30 frames per second.

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