1-3
Section
Devices Required in a Network
4
1-3
Devices Required in a Network
The basic configuration of an Ethernet System consists of a single coaxial cable
together with the transceivers, transceiver cables, nodes, and so on, that are
connected to it. In an Ethernet System, this basic configuration is called a “seg-
ment.”
CS1W-ETN01 Ethernet Unit
24-VDC
power supply
50 m max.
Transceivers
Transceiver cable (AUI cable)
Coaxial cable (10BASE5, outer diameter approx. 10 mm)
Terminator (terminating resistance)
Segment (500 m max.)
Number of branch points: 100
Terminator
(terminating resistance)
2.5 m min.
(multiple of 2.5 m)
The devices shown in the following table must be obtained to configure a net-
work using an Ethernet Unit, so prepare them in advance. Use only devices in
the network that conform to IEEE802.3 standards.
Network device
Contents
CS1 Ethernet Unit
The Ethernet Unit is a Communications Unit
that connects a CS1-series PC to an Ethernet
network.
24-VDC power supply
This is a external 24-VDC power supply for the
purpose of providing power to the transceivers
via transceiver cable. Use a power supply with
an output current of at least 0.3 A per node.
The power is converted within the Unit to the
transceiver power supply voltage, and is
provided to the transceiver.
Transceiver
The transceiver is a device for interfacing
between the coaxial cable and the nodes.
Note: The Ethernet Unit can provide a
maximum current of 0.4 A to the transceiver, so
use a transceiver with a current consumption of
not more than 0.4 A. Check with the
manufacturer for information regarding
transceiver current consumption.
Transceiver cable (AUI cable)
This is the cable for connecting between
transceivers and nodes.
Coaxial cable
The coaxial cable comprises the main line of
the Ethernet System.
Terminator for coaxial cable
(terminating resistance)
The Terminators connect to both ends of the
coaxial cable.
Note
1. It is also possible to use 10BASE-T twisted-pair cable by connecting the
Ethernet Unit to a 10BASE-T conversion adapter.
