Description
Real-time MPEG-4 audio and video transmission and reception in a compact, self-contained unit.
JVC's MPEG-4 codec allows you to transmit and simultaneously receive MPEG-4 video and audio, in real-time, over an IP network. Flexible and versatile, the DM-NC40 is ideal for a wide range of applications, including streaming and teleconferencing. The DM-NC40U can be used in three distintive ways:
- As a real-time video streaming encoder/server
(one-way transmission, one to many users) - As a teleconferencing codec with picture-in-picture and remote control
(two-way transmission) - Security/surveillance streaming server with remote control of pan-tilt-zoom and switching system
The DM-NC40 allows you to transmit and receive ISMA (Internet Streaming Media Alliance) compliant MPEG-4 video and audio over an IP network and the Internet. The MPEG-4 stream produced by the DM-NC40 can be played on virtually any computer platform with all major media players such as:
- Windows Media Player - Quicktime Player - Real Medial Player - Platform 4 Player Other features include:
- Selectable 56 Kbps -- 2 Mbps bit rate
- Unicast and Multicast support for video streaming
- Record of motion JPEG images on CF Card
- RS-232 / 422 / 485 data path for remote control of external equipment
- Four Alarm Inputs to trigger Video Capture for security applications
- Eight discrete 5-volt trigger outputs for external equipment control over an IP network and / or Internet
Being a highly integrated network appliance, DM-NC40 provides reliable, hacker-proof and easy to set up all-in-one solution for various video-over-IP applications including distant learning, video streaming, teleconferencing and security.
Flexible, high-quality MPEG-4 codec The DM-NC40 is a high quality video and audio codec with bit rates up to 2 Mbps, standard resolution up to 352x240* and frame rates up to 30 fps.**
* DM-NC40U: 352 x 240/DM-NC40E: 352 x 288
** DM-NC40U: 30fps/DM-NC40E: 25fps
Built in decoder -- standard! DM-NC40's built-in decoder allows you to use the same streaming device for bi-directional teleconferencing and interactive security applications. Connect to a monitor, flat-panel display, or projector for viewing. You can connect external devices. Couple this with the bi-directional data path and trigger outputs, you can control video switchers, pan-tilt-zoom cameras.
ISMA (Internet Streaming Media Alliance) streaming ISMA compliance assures operation with all devices that meet this new industry standard, including major players and platforms
*ISMA compliant plug-in may be required.
JPEG Image Recording* Record high resolution (704 x 480**) motion JPEG images to CompactFlash card. Trigger recording from any of the four alarm inputs or from the front panel. A built-in buffer even allows pre-alarm recording.
* Available in Camera Mode
** DM-NC40U: 704 x 480, 640 x 480/DM-NC40E: 704 x 576
Decode and capture software for DM-NC40 In addition to using most popular media players, software available from JVC allows you to display and capture the streaming video from the DM-NC40 on your PC.
Unicast and multicast transmission allows unlimited users to "tune-in" to a single stream, virtually eliminating LAN congestion Reach more clients reflecting the video stream through a server. Compatible with major servers for "reflecting" your unicast or multicast stream. Reach more people and increase flexibility. Multicast transmission requires a multicast-ready network (IGMPv2).
Easy operation & maintenance 
- A built-in Web Server allows easy system configuration using your favorite Web Browser over an IP network. In addition, Telnet or API setup is available.
- Once configured using any computer connected to a network, the DM-NC40 does not require any further intervention. Just connect to a network, add audio, video and power, and you?re streaming!
- Upgradable -- Use the DM-NC40's built-in CompactFlash slot for upgrades in the field.
Alarm input / TTL level output Four alarm inputs can trigger video capture or automatic remote connections. Using a Web Browser, remotely control up to eight, 5- volt trigger outputs.
RS232/485 data path Two transparent, bi-directional RS232/485 data paths for remote control of external equipment.
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