GE RX3i PROFINET User Manual page 48

Automatic enables auto-negotiation for the widest range of options supported by the port.
Designated speed options limit the auto-negotiation to that one setting such as limiting a 1 Gbps
connection to 100 Mbps.
The Disabled setting powers down the port so that it does not establish any link.
All ports, including empty, unconfigured SFP cages, are set to Automatic by default.
Once an SFP port is populated with an SFP device, the PNS001 will treat that port as present. RJ45 ports
are always treated as present.
The PNS001 rejects configurations that disable all present ports. This rejection causes the Scanner to fail
to establish a connection. For example, if no SFP modules are present and a configuration is attempted
which disables the two built-in RJ45 ports, that configuration does not connect. A configuration which
disables the two built-in RJ45 ports, but has an SFP module configured which is not present also does not
connect. In this last example, once an SFP module is installed in the specified port, the port will become
present, the configuration becomes valid and a connection can be established.
The port delivering the configuration can be disabled by a new configuration and
that setting stored to non-volatile storage. Be sure to understand the network
topology before disabling Ethernet ports.
Port disable settings are non-volatile. If an SFP port is configured as the only
enabled port and that SFP is removed, the RX3i Scanner will not be accessible until
an SFP is reinserted into that port.
GFK-2737F
Caution
Caution
December 2016
Chapter 4. Configuration
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