AMX AV/IT Administrators Guide
Rev. 1.0 (7/29/2014) www.amx.com Page 3
bring the room into management. More information and account signup is available at
http://www.amxrpm.com.
Network Environment
Physical Network requirements
AMX AV and control equipment is designed to use the same switched Ethernet infrastructure as other IT
equipment. Considerations for bandwidth, VLANs, IP addressing scheme and PoE will be based on the
actual equipment and scope of the project as in any other IT installation. Most AMX devices have
10/100BaseT ports and are compliant with the IEEE 802.3 100BASE-T specification. The units, by default,
enters auto-negotiate mode, which automatically detects and configures itself for operation on the
network to which it’s connected. It is possible to force the mode of operation (10Mbps half, 10Mbps full,
100Mbps half, or 100Mbps full) via software configuration. Some AMX devices have DXLink
connections which are not directly connectable to an Ethernet switch.
DXLink vs. Ethernet
In some cases audio, video, network and control may be transported over DXLink. Although this is using
the same Cat6 cable as Ethernet and 100Mbps Ethernet can be tunneled through the cable along with
the other signals it is not Ethernet and never attaches directly to a switch or router. Equipment that is
connected over DXLink may also have an Ethernet jack for convenience in extending the control
network. DXLink products do not support Spanning Tree so only one connection to a LAN is permitted
within a switching system with DXLink support.
Wireless
AMX wireless touch panel are mobile devices that communicate with a NetLinx Central Controller via a
standard 802.11a/b/g Wireless Access Point. They support both simple and enterprise security modes
including password or certificate based authentication.
In a small system the control system can connect to a standalone access point, but in an enterprise with
managed wireless the best practice would be to assign a separate AV SSID routed to the AV subnet.
Using the existing engineered wireless plan and infrastructure will ensure that there is no RF
interference that could be caused by a separate Wireless Access Point.
Logical Network Topology
VLAN
Best practices dictate that AV equipment be separated from other network traffic. There are several key
strategies in segmenting traffic which drives this separation. The strategies and justification for
separating AV into a separate VLAN(s) follow.
Group devices by traffic patterns
o AMX equipment communicates primarily among the AV devices with limited
connectivity to the data network.
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