AMX DXLink Instruction Manual page 70

Network Configuration
When in DHCP Mode (the default setting), the module will attempt to get a DHCP lease (consisting of
an IP address, gateway, and other network parameters). Should the attempt fail, the module will then
configure itself for a link-local address.
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Once the module is operating with a link-local address, it will periodically re-try DHCP and re-assign
the IP to a valid DHCP grant if successful.
At any time, if the module determines that its IP address has changed, it will disconnect from the Master
(if necessary, depending on the connection state) and then reconnect to the Master.
TCP/IP Address Configuration
DXLink Modules support IPV4 network addresses, gateway addresses, DNS server addresses,
and network names. They also support NDP (NetLinx Discovery Protocol) capabilities as well as
IP discovery via NetLinx Studio.
Note: NDP is a device discovery method used by NetLinx Masters. With NDP Beacon enabled, the
Master will transmit NDP Beacons for AMX's proprietary device discovery.
Telnet IP Configuration Commands
The SET IP and GET IP Telnet commands listed in the tables in Appendix B (which start on page 112)
can be sent directly to the device via a Telnet terminal session. These commands can be used for initial
network configuration of the DXLink Modules.
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For details, see "Appendix B – Telnet (Terminal) Commands" on page 111. The appendix also includes a
section on "Master Connection Modes" on page 119.
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DXLink Modules utilize a modified link-local addressing procedure. The first address to be
tried is a known address in the link-local space: 169.254.2.2. That address will be probed, and
if unclaimed will be used by the DXLink Module.
If 169.254.2.2 is already claimed, the DXLink Module will choose a random address within
the 169.252.x.x link-local address space (again probing to ensure that it is unclaimed).
The default Telnet port is 23.
Telnet is enabled by default.
A value of 0 disables the telnet server.
Instruction Manual – DXLink™ Twisted Pair Transmitters/Receiver