10Base-T Specifications; Figure 8-3 10Base-T Ethernet Configuration Example - Hitachi S10mini User Manual

8 APPENDIXES

8.1.3 10BASE-T specifications

10BASE-T is an Ethernet connection method that uses a twisted-pair cable. The number "10" of
the designation "10BASE-T" represents an Ethernet transmission speed of 10 Mbps. The "BASE"
portion indicates the use of a baseband transmission system. The suffix "T" indicates that a
twisted-pair cable is used as a transmission medium. In a 10BASE-T network, personal computers
and other devices need to be interconnected in a star topology via a hub. They cannot be directly
connected to each other. (Although the use of a special cable called "cross cable" allows devices to
be interconnected on a one-to-one basis, it is not commonly applied.) The maximum permissible
cable length between a hub and devices is 100 m.
The 10BASE-T connection method uses a thin cable that can be routed with ease. It also permits
various devices to be connected to and disconnected from a network on an individual basis.
Therefore, it is frequently used for office networks.
Figure 8-3 shows a typical 10BASE-T Ethernet configuration.
Hub
Twisted-pair cable [UTP: Category 5]
(maximum cable length: 100 m)
RJ-45 connector

Figure 8-3 10BASE-T Ethernet Configuration Example

8-4