The APC Relay I/O module is a management product that provides the UPS status information presented as six, form C, contact closures. It also provides UPS control and testing by contact closure inputs. It features screw terminal connectors for easy integration into various management systems. Host interface: SmartSlot Storage relative humidity range: 0 - 95 % Connectivity technology: Wired Form factor: Plug-in module Weight: 140 g Slot type: 1 x SmartSlot I/O ports: 1 x management - 1