One IBM serial null modem cable

一根 IBM 串口直连线缆（serial null modem cable）。

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A null modem cable is a serial cable that allows data to be sent between two serial ports.

零调制解调器电缆是一种允许在两个串行端口之间发送数据的串行电缆。

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It is very important that you have the correct null modem cable with you to set up the debugging environment.

为了设置调试环境，拥有正确的零调制解调器电缆是非常重要的。

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Ideally, that machine would have no network connection (as it would be a prime break-in target), and be reported to via null-modem serial cable only.

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