数据手册
3
有伸缩性的 四方形 ethernet repeater — lxt914
内容
1.0 lxt914 管脚 assignments 和 信号 描述
.....................................7
2.0 函数的 描述
...........................................................................................14
2.1 介绍..........................................................................................................14
2.2 外部 接口 ..............................................................................................14
2.2.1 10base-t 端口 .....................................................................................14
2.2.2 aui 端口..................................................................................................14
2.2.3 串行 端口...............................................................................................15
2.2.4 inter-repeater backplane ......................................................................15
2.2.4.1 同步的 irb 运作......................................................15
2.2.4.2 异步的 irb 运作....................................................15
2.3 内部的 repeater 电路系统 ..................................................................................16
2.4 initialization..........................................................................................................16
2.4.1 local 管理 模式 initialization ...................................................16
2.4.2 外部 管理 模式 initialization ..............................................20
2.5 10base-t 端口 运作 ...................................................................................21
2.5.1 10base-t reception .............................................................................21
2.5.1.1 可编程序的 内部的 squelch 水平的 ......................................22
2.5.1.2 极性 发现 和 纠正..............................................22
2.5.2 10base-t 传递 ........................................................................22
2.5.3 10base-t link integrity 测试 ............................................................22
2.6 aui 端口 运作 ..............................................................................................23
2.6.1 aui reception ........................................................................................23
2.6.2 aui 传递 ...................................................................................23
2.6.3 aui 模式 选择 (dte/mau) ............................................................23
2.7 collision 处理................................................................................................24
2.8 安全 模式 .....................................................................................................24
2.9 led 显示.........................................................................................................25
3.0 应用 信息
.........................................................................................28
3.1 12-端口 hub repeater .........................................................................................28
3.2 8-端口 打印 或者 文件 server....................................................................................28
4.0 测试 规格
..................................................................................................36
5.0 机械的 规格
....................................................................................41
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