HP MicroLogix 1761-NET-ENI manual Ethernet Networks, Basic Ethernet Topology

Product Overview 1-5

Ethernet Networks

Basic Ethernet Topology

The ENI Ethernet connector conforms to ISO/IEC 8802-3 STD 802.3 and utilizes 10Base-T media. Connections are made directly from the ENI to an Ethernet switch. The network setup is simple and cost effective. Typical network topology is pictured below.

to PC Ethernet Card or other Ethernet Device

Ethernet Switch

RJ45 connectors on both ends of cable (10Base-T)

to ENI

IMPORTANT

The ENI provides a 10Base-T, RJ45 Ethernet connector which connects to standard Ethernet hubs and switches via an 8-wire twisted pair straight-through cable. To access other Ethernet mediums, use 10Base-T media converters or Ethernet switches that can be connected together via fiber, thin-wire, or thick-wire coaxial cables, or any other physical media commercially available with Ethernet switches. See page 2-7for more cable information.

IMPORTANT

The IP addresses in any of the examples in this manual were arbitrarily assigned and should only be used on an isolated Ethernet network. Contact your system administrator for unique IP addresses if you are connecting your Ethernet devices to your employer’s Ethernet network.

Using a Web Browser with the ENI

You can access information about the ENI via your web browser. Simply enter the ENI’s TCP/IP address into the address field of your browser.

Publication 1761-UM006A-EN-P - February 2001