These are remote boxes that sit out at remote, unmanned locations and monitor the equipment and conditions there. One NetGuardian 832A, for example, might be monitoring temperature sensors, humidity sensors, doors, motion, water leakage, fuel levels, and power voltages using external sensors. Any deviation from ideal conditions would, in this example, trigger an SNMP trap from the NetGuardian 832A. Your SNMP manager could direct a response from the NetGuardian, such as turning on a backup generator to handle a commercial power failure. Sxc great ssc maths question paper in hindi is a power distribution unit (PDU). These are more focused on remote control than remote monitoring. This provides a last-resort remote-reboot capability if you have a server get stuck or something similar go wrong.