通过两个节点的串口，使用一根直连线缆将它们连接起来。

Use a null modem cable to connect the two nodes through their serial ports. Now test the serial connection, as follows.

youdao

通过两个节点的串口，使用一根直连线缆将它们连接起来。

Use a null modem cable to connect the two nodes through their serial ports. Now test the serial connection, as follows.

youdao