There may be various devices that do not have IoT capability, but need to be connected to the IP network so that they can interact with the IP cameras, VMS or other systems.
For example, panic button, smoke sensor, passive infrared motion sensor, glass break detector, open door detector, etc, can all be connected to the IP network using network IO module. These devices are connected to the digital input or serial ports of the network IO module, and their events are then transmitted over the network to the management server. This way, the management server, such as NVR 3 or Access Control Smart Server will be notified about the panic button event instantly.