Polycom RealPresence RMX 1500 Administrator's Manual page 535

IP Network Services
RealPresence Collaboration Server (RMX) 1500/4000 :
Although the RTM LAN (media card) ports are shown as Port 1 in the Ethernet Settings and
Hardware Monitor, the physical LAN connection is Port 2.
2 Select the speed and transmit/receive mode for each ports as follows:
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