10BASE-T是双绞线以太网,由IEEE在1990年认可并编号为IEEE802.3i。T代表采用双绞线,现10BASE-T采用的是非屏蔽双绞线(UTP)。
以下是10BASE-T的主要技术指标和特点:
数据传输速率:10Mbps基带传输。其中,“10”表示10兆比特每秒,“Base”表示基带传输。
双绞线长度:每段双绞线最大有效长度为100m。如果采用高质量的双绞线(5类线),最大长度可以达到150m(HUB与工作站间及两个HUB之间)。
连接与拓扑结构:10BASE-T的连接主要以集线器HUB作为枢纽,工作站通过网卡的RJ45插座与RJ45接头相连。其拓扑结构可以是星形或总线形。
访问控制方式:采用CSMA/CD(载波侦听多路访问/冲突检测)。
帧长度:可变,最大为1518个字节。
其他特性:
网络建立和扩展十分灵活方便,可根据每个HUB的端口数量和网络大小来构成所需网络。增减工作站时,不会中断整个网络的工作。
可以预先和电话线统一布线,并在房间内预先安装好RJ45插座,因此改变网络布局十分容易。
HUB具有自动隔离故障作用,当某工作站发生故障时,不会影响网络正常工作。
10BASE-T网与10BASE-2、10BASE-5等其他以太网标准能很好地兼容。
10BASE-T在工业自动化领域也有应用。
10BASE-T is a twisted-pair Ethernet, recognized by the IEEE in 1990 and numbered IEEE802.3i. T stands for twisted pair. Now 10BASE-T uses unshielded twisted pair (UTP).
The following are the main technical indicators and features of 10BASE-T:
Data transfer rate: 10Mbps baseband transmission. Where, "10" stands for 10 megabits per second, and "Base" stands for baseband transmission.
Twisted pair length: The maximum effective length of each twisted pair is 100m. If the use of high-quality twisted pair (type 5 wire), the maximum length can reach 150m (between the HUB and the workstation and between two hubs).
Connection and topology: The connection of 10BASE-T mainly uses the HUB as the hub, and the workstation is connected to the RJ45 connector through the RJ45 socket of the network adapter. Its topology can be star or bus.
Access control mode: CSMA/CD (Carrier Sense multiple access/collision detection).
Frame length: Variable, maximum 1518 bytes.
Other features:
Network establishment and expansion is very flexible and convenient, according to the number of ports and network size of each HUB to form the required network. Workstations are added or removed without interrupting the work of the entire network.
It can be pre-wired with the telephone line, and the RJ45 socket is pre-installed in the room, so it is easy to change the network layout.
The HUB automatically isolates faults. When a workstation fails, the network will not be affected.
The 10BASE-T network is compatible with other Ethernet standards such as 10BASE-2 and 10BASE-5.
10BASE-T also has applications in industrial automation.
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