If your host system has no serial port, use a DB9-to-USB cable.
如果您的主机系统没有串行接口，使用DB 9 - to - USB电缆。
A down state would indicate a possible bad cable or network switch port.
如果Link state为down，那么就显示网线或网络交换机端口可能有问题。
Connect one cable to the proper port and run the cable through the cable slot.
将一条缆线连接到相应的端口上，使缆线从缆线槽中穿过。
Connect one cable to the proper port and run the cable through the cable slot.
将一条缆线连接到相应的端口上，使缆线从缆线槽中穿过。
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