The NUUO SCB-C28 provides with 4 optical isolated digital input channels and 4 power relays output. This surveillance IO device is typically used to integrate burglar alarm input and output devices to a NUUO video surveillance system.  All channels use screw terminals for convenient connection of field signals.  Each channel also has LEDs to indicate channel status.  The NUUO SCB-C28 outputs to RS-485 and can be connected to a NUUO PC based DVR via a NUUO SCB-C08 (which converts the RS-485 to USB).  Please refer to the below specifications for additional installation information and technical specs.