diff --git a/LibreNMS/OS/EltexMes23xx.php b/LibreNMS/OS/EltexMes23xx.php
new file mode 100644
index 0000000000..85c12309a1
--- /dev/null
+++ b/LibreNMS/OS/EltexMes23xx.php
@@ -0,0 +1,40 @@
+<?php
+/**
+ * EltexMes23xx.php
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * @link       https://www.librenms.org
+ *
+ * @copyright  2022 PipoCanaja
+ * @author     PipoCanaja
+ */
+
+namespace LibreNMS\OS;
+
+use LibreNMS\OS;
+
+class EltexMes23xx extends OS
+{
+    /**
+     * Specific HexToString for Eltex
+     */
+    public function normData(string $par = ''): string
+    {
+        $tmp = str_replace([':', ' '], '', trim(strtoupper($par)));
+        $ret = preg_match('/^[0-9A-F]+$/', $tmp) ? hex2str($tmp) : $par; //if string is pure hex, convert to ascii
+
+        return $ret;
+    }
+}
diff --git a/includes/discovery/entity-physical/eltex-mes23xx.inc.php b/includes/discovery/entity-physical/eltex-mes23xx.inc.php
index 1e69d1ab7d..fd44781a5d 100644
--- a/includes/discovery/entity-physical/eltex-mes23xx.inc.php
+++ b/includes/discovery/entity-physical/eltex-mes23xx.inc.php
@@ -29,14 +29,6 @@ $trans = snmpwalk_cache_multi_oid($device, 'eltPhdTransceiverInfoEntry', [], 'EL
 echo ' entAliasMappingIdentifier';
 $mapping = snmpwalk_cache_multi_oid($device, 'entAliasMappingIdentifier', [], 'ENTITY-MIB:IF-MIB');
 
-function normData($par = null)
-{
-    $tmp = str_replace([':', ' '], '', trim(strtoupper($par)));
-    $ret = preg_match('/^[0-9A-F]+$/', $tmp) ? hex2str($tmp) : $par; //if string is pure hex, convert to ascii
-
-    return $ret;
-}
-
 foreach ($trans as $index => $data) {
     unset($connectedto);
     foreach ($mapping as $ekey => $edata) {
@@ -50,11 +42,11 @@ foreach ($trans as $index => $data) {
             'entPhysicalDescr'        => $data['eltPhdTransceiverInfoType'],
             'entPhysicalClass'        => 'sfp-cage',
             'entPhysicalName'         => strtoupper($data['eltPhdTransceiverInfoConnectorType']),
-            'entPhysicalModelName'    => normData($data['eltPhdTransceiverInfoPartNumber']),
+            'entPhysicalModelName'    => \LibreNMS\OS\EltexMes23xx::normData($data['eltPhdTransceiverInfoPartNumber']),
             'entPhysicalSerialNum'    => $data['eltPhdTransceiverInfoSerialNumber'],
             'entPhysicalContainedIn'  => $connectedto,
             'entPhysicalMfgName'      => $data['eltPhdTransceiverInfoVendorName'],
-            'entPhysicalHardwareRev'  => normData($data['eltPhdTransceiverInfoVendorRev']),
+            'entPhysicalHardwareRev'  => \LibreNMS\OS\EltexMes23xx::normData($data['eltPhdTransceiverInfoVendorRev']),
             'entPhysicalIsFRU'        => 'true',
         ];
     }