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Chapter 15: Appendix
15
(2) 10BASE-T cable
This cable is also called "twisted pair cable" or "twisted couple cable." Two copper wires are twisted
around each other as a pair. These pairs are bundled together in sets and covered with external
insulating cover. The following types are available.
STP cable with a shield, and UTP cable without a shield.
A cross cable can be directly connected between nodes and straight cable can connect nodes
through a hub.
The maximum transfer speed of 10BASE-T cable is 10M bps and the maximum length is 100 m. The
connectors at both ends of the cable are 8-pole modular connectors specified in ISO8877.
Use category 5 compatible 10BASE-T cable for an FL-net.
10BASE-T cable for Ethernet use
(3) 10BASE-T/optical converter, repeater
This device is used to convert electrical signals on a 10BASE-T cable into optical signals.
A FOIRL (Fiber Optic Inter Repeater Link) is used to connect between repeaters and a 10BASE-FL
with terminals. This is used to prevent problems caused by electrical noise and to extend a cable's
length.
10BASE-T/optical converter, repeater for Ethernet use
Pair 4
10BASE-T
Pair 3
Pair 2
Pair 1
87654321
87654321
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RJ45 (female)MLL connector (male)