当您使用零调制解调器电缆在两台计算机之间建立直接串行连接时，您的电缆必须按下面清单1中显示的方式连接。
When you use a null modem to make a direct serial connection between two computers, your cable must be wired, as shown in Listing 1 below.
开始之前，请确保已使用零调制解调器电缆将开发计算机和目标计算机连接起来。
Before starting, make sure that you have connected the null modem cable between the development and target machines.
有多种连接方式可供选择，因为标准中并未涵盖零调制解调器连接。
Several wiring layouts are in use, because the null modem connection is not covered by a standard.
使用零调制解调器连接时，发送线和接收线要交叉连接。
With a null modem connection, the transmit and receive lines are cross-linked.
零调制解调器 (Null modem)是一种使用RS-232串行电缆连接两台计算机的通信方式。
Null modem is a communication method to connect two computers directly using a RS-232 serial cable.
零调制解调器 (Null modem)是一种使用RS-232串行电缆连接两台计算机的通信方式。
Null modem is a communication method to connect two computers directly using a RS-232 serial cable.
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