The circuit design mainly includes interface designs, such as address codingcircuit, human-machine, AD converter, etc.
电路设计主要包括译码电路设计，人机接口电路设计，AD转换电路设计等。
2
Codingcircuit inside (may not code), can be connected in alarm bus directly when coded and matched with module when not coded.
内有编码电路(可不编址)，编码时可直接接入报警总线，不编码时需配控制模块才能使用。
3
This article introduces a timing circuit design, which is based on coding switches and singlechip system. Hardware and software design of the circuit are also discussed in detail.