Ethernet Port Connections; Port Connections - GE GFK-2892F User Manual

2.6 Ethernet Port Connections

As noted earlier, PROFINET IO operates at 100Mbps or higher (full duplex). The GCG001 Genius Gateway
cannot operate at a data rate greater than 100Mbps. Thus, for normal operation, at least one port must be
operated at 100Mbps. Other devices operating at 10Mbps may co-exist on that network, though this would not
be typical.
Each Ethernet port on the GCG001 module (see Figure 3) operates independently, so devices that operate at
different speeds and/or duplex modes may be attached to the ports. Each port automatically detects the
attached cable and functions properly with either straight-through or crossover cables.
Note: The module operates only in auto-negotiate mode. All PROFINET devices and switches
that are connected to the module should be configured to use auto-negotiation.
RJ-45 Port Connections
The two RJ-45 ports on the GCG001 Genius Gateway can be used for PROFINET network connections or for
general Ethernet communications on a 10BaseT or 100BaseTX IEEE 802.3 network; 1000BaseTX is not
supported. If the port is connected to an external switch, hub, or repeater, up to 12 PROFINET nodes may be
connected in a star wiring topology. Cables may be up to 100 meters in length. Cables for 100BaseTX must be
data grade Category 5 or better unshielded twisted pair (UTP) or shielded twisted pair (STP). 10BaseT may be
used for the general Ethernet traffic, but not for PROFINET communications.
GFK-2892F March 2019
Chapter 2. Installation
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