语音系统，可以实现内网外网语音通信，基于标准的H.232协议-Voice system, can achieve voice communications within the network outside the network, standards-based H.232 protocol

对奥普特公司的数字多通道光源控制器基于232协议进行控制光源的亮度。多用于机器视觉系统的项目中。(The Haupt company of the digital multi-channel light source controller based on 232 protocol to control the brightness of light source. Projects that are mostly used in machine vision systems.)