librenms-librenms/includes/discovery/frequencies/xups.inc.php

<?php

global $valid_sensor;

## XUPS
if ($device['os'] == "powerware")
{
  echo("XUPS-MIB ");

  # I'm not sure if there is provision for frequency of multiple phases in this MIB -TL

  # XUPS-MIB::xupsInputFrequency.0 = INTEGER: 500
  $freq_oid = ".1.3.6.1.4.1.534.1.3.1.0";
  $descr    = "Input";
  $divisor  = 10;
  $current  = snmp_get($device, $freq_oid, "-Oqv") / $divisor;
  $type     = "xups";
  $index    = '3.1.0';
  discover_sensor($valid_sensor, 'frequency', $device, $freq_oid, $index, $type, $descr, $divisor, '1', NULL, NULL, NULL, NULL, $current);

  # XUPS-MIB::xupsOutputFrequency.0 = INTEGER: 500
  $freq_oid = "1.3.6.1.4.1.534.1.4.2.0";
  $descr    = "Output";
  $divisor  = 10;
  $current  = snmp_get($device, $freq_oid, "-Oqv") / $divisor;
  $type     = "xups";
  $index    = '4.2.0';
  discover_sensor($valid_sensor, 'frequency', $device, $freq_oid, $index, $type, $descr, $divisor, '1', NULL, NULL, NULL, NULL, $current);

  # XUPS-MIB::xupsBypassFrequency.0 = INTEGER: 500
  $freq_oid = "1.3.6.1.4.1.534.1.5.1.0";
  $descr    = "Bypass";
  $divisor  = 10;
  $current  = snmp_get($device, $freq_oid, "-Oqv");
  if ($current != "")
  {
    # Bypass is not always available in SNMP
    $current /= $divisor;
    $type     = "xups";
    $index    = '5.1.0';
    discover_sensor($valid_sensor, 'frequency', $device, $freq_oid, $index, $type, $descr, $divisor, '1', NULL, NULL, NULL, NULL, $current);
  }
}

?>