librenms-librenms/includes/discovery/temperatures/powerconnect.inc.php

<?php

if ($device['os'] == "powerconnect")
{
    $sysObjectId = snmp_get ($device, "SNMPv2-MIB::sysObjectID.0", "-Ovqn");
    switch ($sysObjectId) {
        case ".1.3.6.1.4.1.674.10895.3031":
        /**
        * Devices supported:
        * Dell Powerconnect 55xx
        * Operating Temperature: 0º C to 40º C
        */
        $temperature = trim(snmp_get($device, ".1.3.6.1.4.1.89.53.15.1.9.1", "-Ovq"));
        discover_sensor($valid['sensor'], 'temperature', $device , ".1.3.6.1.4.1.89.53.15.1.9.1", 0 , "powerconnect" , "Internal Temperature" , '1', '1', "0" , NULL, NULL, "40", $temperature);
        break;
        default :
        /**
        * Defaul Discovery for powerconnect series
        *  Dell-Vendor-MIB::dellLanExtension.6132.1.1.1.1.4.4.0 = STRING: "5 Sec (6.99%),    1 Min (6.72%),   5 Min (9.06%)"
        */
        $temps = snmp_walk($device, "boxServicesTempSensorTemperature", "-OsqnU", "FASTPATH-BOXSERVICES-PRIVATE-MIB");
        if ($debug) { echo($temps."\n"); }

        $index = 0;
        foreach (explode("\n",$temps) as $oids)
        {
            echo("Powerconnect ");
            list($oid,$current) = explode(' ',$oids);
            $divisor = "1";
            $multiplier = "1";
            $type = "powerconnect";
            $index++;
            $descr = "Internal Temperature";
            if (count(explode("\n",$temps)) > 1) { $descr .= " $index"; }

            discover_sensor($valid['sensor'], 'temperature', $device, $oid, $index, $type, $descr, $divisor, $multiplier, NULL, NULL, NULL, NULL, $current);
        }
    }
}