备用信道 alternate channel
spare channel
- 然后这种状况消息可被网络用于选择备用信道。
This Status message may then be used by the network to select an alternative channel. - 不过,如果给定供电电源和一个备用通信信道,Arduino也可以独立于计算机工作。
However, the Arduino can also act independently of a computer given a power supply and an alternate communications channel. - 如果频带中只有一个信道可用,可以选择使用1 + 1热备用配置实现设备保护。
If only one channel is available in the frequency band equipment protection can be optionally implemented with a1 + 1hot standby configuration.