Operation Manual – PoEH3C S7500 Series Ethernet Switches Chapter 2 PoE PSU Supervision Configuration2-3[H3C] display poe-power ac-input state2.3 DC Output Alarm Threshold ConfigurationYou can set the DC output alarm thresholds for the PoE PSUs to enable the S7500series to monitor the DC output voltages of the PSUs in real time through SRPUs.2.3.1 DC Output Alarm Thresholds Configuration TasksFollow these steps to set DC output alarm thresholds:To do… Use the command… RemarksEnter the system view system-view —Set the overvoltage alarmthreshold of DC output(upper threshold) for thePoE PSUspoe-poweroutput-thresh upperstringRequiredYou are recommended toset the upper threshold to47 V when 220 VAC or110 VAC is input.Set the undervoltagealarm threshold of DCoutput (lower threshold)for the PoE PSUspoe-poweroutput-thresh lowerstringRequiredYou are recommended toset the lower threshold to55 V when 220 VAC or110 VAC is input.2.3.2 DC Output Alarm Threshold Configuration ExampleI. Network requirementsz Set the overvoltage alarm threshold of DC output for the PoE PSUs to 55.0 V.z Set the undervoltage alarm threshold of DC output for the PoE PSUs to 47.0 V.II. Configuration procedure# Enter system view. system-view# Set the overvoltage alarm threshold of DC output for the PoE PSUs to 55.0 V.[H3C] poe-power output-thresh upper 55.0# Set the undervoltage alarm threshold of DC output for the PoE PSUs to 47.0 V.[H3C] poe-power output-thresh lower 47.0# Display the DC output state of the PoE PSUs.[H3C] display poe-power dc-output state# Display the DC output voltage/current values of the PoE PSUs.[H3C] display poe-power dc-output value
