1 Publication 1756-UM050A-EN-P - December 2001
Appendix
E
Autonegotiation Requirements
Manual Configuration on an
Ethernet Switch
The ControlLogix EtherNet/IP Bridge module supports the following
Ethernet settings:
• 10Mbps half duplex
• 10Mbps full duplex
• 100Mbps half duplex
• 100Mbps full duplex
Mode selection is done automatically based on the IEEE 802.3u
autonegotiation protocol.
If a module is connected to a port on a 10/100Mbps switch, you must
set this port to autonegotiate. If this port is set manually to one of the
modes listed above, a mismatch between module and switch modes
of operation may occur. This will result in significant reduction of
system performance.
Changing Ports on an
Ethernet Switch
If you reconnect the module from one port to another one, regardless
whether the new port is located on the same or a different switch (or
a hub), do the following:
1. Disconnect the cable from the port to which the module is
currently connected.
2. Wait until the module Link Status LED is off.
3. Connect the cable to the new port.
This procedure will restart the autonegotiation process at the module
side. Another option is to restart the module itself.
AB Parts
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