The IC697CMM742 Ethernet Interface (Type 2) provides high performance TCP/IP communications for the IC697 PLC. The Ethernet Interface (Type 2) plugs into a single slot in an IC697 PLC rack and is configured with the IC641 PLC programming software. Up to four Ethernet Interface (Type 2) modules can be installed in an IC697 PLC CPU rack. The Ethernet Interface (Type 2) contains three network ports: 10BaseT (RJ-45 connector), 10Base2 (BNC connector), and AUI (15-pin D-connector). The Ethernet Interface automatically selects the network port in use. One network port may be used at a time. The 10BaseT network port permits direct connection to a 10BaseT (twisted pair) network hub or repeater without an external transceiver. The 10Base2 network port permits direct connection to a 10Base2 (ThinWire) network without an external transceiver. The AUI network port permits attachment of a usersupplied AUI (Attachment Unit Interface, or transceiver) cable. The AUI cable connects the Ethernet Interface to a user-supplied transceiver that is directly connected to the 10Mbps Ethernet network. The transceiver must be 802.3 compatible and must have the SQE option enabled.