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公开(公告)号:US06816499B1
公开(公告)日:2004-11-09
申请号:US09330969
申请日:1999-06-11
IPC分类号: H04L1256
CPC分类号: H04L49/40 , H04L12/433 , H04L49/102 , H04L49/25 , H04L49/30 , H04L49/351
摘要: A device that automatically configures the high speed (100 Mbps) port of a switch both physically and logically is provided. For physical configuration, the device determines the transmit pair conductor and the receive pair conductor interconnecting a switch port and Data Terminal Equipment (DTE). The switch port can be termed “Primary” while the connected DTE is termed “Secondary” or vice versa. For logical configurations, the device makes the determination. The device includes a switching relay, a controller and impedance matching transformers. The controller switches the connections between the relay and the transformer so that the impedance is substantially constant even though the output from the high speed port is feeding different resistive transmission lines.
摘要翻译: 提供了物理和逻辑上自动配置交换机的高速(100 Mbps)端口的设备。 对于物理配置,设备确定了互连交换机端口和数据终端设备(DTE)的传输对导体和接收对导体。 开关端口可以称为“主”,而连接的DTE称为“次”,反之亦然。 对于逻辑配置,设备进行确定。 该装置包括开关继电器,控制器和阻抗匹配变压器。 控制器切换继电器和变压器之间的连接,使得即使高速端口的输出馈送不同的电阻传输线,阻抗也基本恒定。