Hitachi FL.NET, User Manual

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8 APPENDIXES
8-3
8.1.2 10BASE5 specifications
10BASE5 is an Ethernet connection method that uses a coaxial cable about 10 mm in thickness
(also referred to as a thick cable or yellow cable.) The number “10” of the designation “10BASE5”
represents a transmission speed of 10 Mbps. The “BASE” portion indicates the use of a baseband
transmission system. The suffix “5” indicates that the trunk transmission distance is 500 m. For
the connection to a personal computer or like device, a transceiver is attached to a coaxial cable and
connected to the personal computer via a transceiver cable (also referred to as an AUI cable.)
The 10BASE5 connection method uses a thick cable that cannot easily be used to establish a
network connection. Therefore, it is not frequently used for office networks. However, it is
commonly used for a trunk network connection because of its long transmission distance.
Figure 8-2 shows a typical 10BASE5 Ethernet configuration.
When a multiport transceiver is used, the
maximum overall AUI cable length between
a coaxial cable and terminal is 50 m.
The use of a multiport transceiver permits
up to 2-stage cascade connections.
Coaxial cable
(maximum cable length: 500 m)
Single-port
transceiver
Ground
terminal
Terminating
resistor
AUI cable
(maximum cable length: 50 m)
Multiport transceiver
Figure 8-2 10BASE5 Ethernet Configuration Example