librenms-librenms/includes/discovery/sensors/power/raritan.inc.php

<?php

if ($device['os'] == 'raritan') {
    // Check Inlets
    $inlet_oids = snmp_walk($device, 'inletLabel', '-Osqn', 'PDU2-MIB');
    $inlet_oids = trim($inlet_oids);
    if ($inlet_oids) {
        echo 'PDU Inlet ';
    }

    foreach (explode("\n", $inlet_oids) as $inlet_data) {
        $inlet_data = trim($inlet_data);
        if ($inlet_data) {
            list($inlet_oid,$inlet_descr) = explode(' ', $inlet_data, 2);
            $inlet_split_oid              = explode('.', $inlet_oid);
            $inlet_index                  = $inlet_split_oid[(count($inlet_split_oid) - 2)].'.'.$inlet_split_oid[(count($inlet_split_oid) - 1)];

            $inlet_oid     = ".1.3.6.1.4.1.13742.6.5.2.3.1.4.$inlet_index.5";
            $inlet_divisor = pow(10, snmp_get($device, "inletSensorDecimalDigits.$inlet_index.activePower", '-Ovq', 'PDU2-MIB'));
            $inlet_power   = (snmp_get($device, "measurementsInletSensorValue.$inlet_index.activePower", '-Ovq', 'PDU2-MIB') / $inlet_divisor);

            if ($inlet_power >= 0) {
                discover_sensor($valid['sensor'], 'power', $device, $inlet_oid, $inlet_index, 'raritan', $inlet_descr, $inlet_divisor, 1, null, null, null, null, $inlet_power);
            }
        }
    }
}