Thirdly, the design and key technology of the fax interface are discussed; and a common fax adapter, which has the function of error control, is designed.

• 并根据现有技术，讨论了传真接口的设计，介绍了传真机的主要技术以及传真接口的实现方法，设计了通用传真适配器，保留了传真机原有的差错控制能力。