本程序是一个监控程序，对机房的空调，UPS，安保，环境防盗以及各种开关的检测，数字量的采集。-This program is a monitoring program for room air-conditioning, UPS, security, environmental security and the detection of a variety of switches, digital collection.

网络视频服务器DVS中开关量输入输出的操作方法-DVS network video server in the switch input and output operation method