Design Guide – DOC. 7977F DM NVX System • 13
For each endpoint and for the DM-NVX-DIR-ENT, the connectivity options and the
distance requirements determine the appropriate module that is to be used.
SFP-10G Modules
Available SFP-10G modules for the DM-NVX-DIR-ENT consist of the following:
• SFP-10G-SR: 850 nm multimode fiber connections up to 300 m (1000 ft) over
LC-terminated OM3 and up to 400 m (1300 ft) over LC-terminated OM4 fiber
• SFP-10G-BX-U: 1270 nm/1330 nm single-mode fiber connections up to
10 km (6.2 mi) using LC-terminated G.652 fiber
• SFP-10G-BX-D: 1330 nm/1270 nm single-mode fiber connections up to 10 km
(6.2 mi) using LC-terminated G.652 fiber
For the DM-NVX-DIR-ENT, the connectivity options and the distance requirements
determine the appropriate module that is to be used.
Endpoint Bandwidth Design and Management
A single DM NVX network link can carry the following data streams:
• Primary Audio/Video Stream: HDMI® or analog audio and HDMI video that are
encoded and sent to the network for decoding by a remote endpoint
• Secondary Audio Stream: Audio stream that is encoded and sent for decoding
independently of the primary audio/video stream
• USB Device and Host Traffic: USB data from the DM NVX device or host port
(available on DM-NVX-35x and DM-NVX-35xC devices only)
• Other Ethernet Traffic: Control data as well as data from DM NVX network
ports connected to third-party devices such as displays or cameras. Ethernet
traffic also includes network protocol traffic such as DHCP, DNS, and RADIUS
for 802.1X.
Default video bit rate settings are sufficient for most installations but can be adjusted
to accommodate unique situations. Ethernet bandwidth ratings are bidirectional;
therefore, full USB 2.0 bandwidth is supported for DM-NVX-35x and DM-NVX-35xC
devices. In an installation in which video from a PC is encoded and sent to a decoder at a
display, and a high-bandwidth USB camera at the display sends USB video back to the
PC, no bandwidth issues exist. Although the sum of all traffic may exceed 1 Gbps in this
scenario, the traffic in each direction is less than 1 Gbps.
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