Overview; Ethernet - ABB FENA-01 Hardware Manual

Overview

Overview
This chapter contains a short description of the Ethernet, the
FENA-01 Ethernet Adapter module, and a delivery checklist.

Ethernet

Ethernet standards support a variety of physical media (coaxial
cable, twisted pair, fiber optics) and topologies (bus and star). The
FENA-01 Ethernet Adapter supports twisted pair as the physical
media in a star topology. An example of an allowable topology is
shown in
Figure 1. Ethernet star topology
The maximum length for an Ethernet segment on twisted pair
media is 100 meters. All twisted pair media between the Ethernet
node and the Hub, Switch or Router must be less than 100
meters, including media within patch panels (see chapter
"Technical
Figure 1.
Hub, Switch or Router
Twisted
Pair
Node
data").
Twisted
Pair
Node
Twisted
Pair
Node
11
Overview