diff --git a/includes/definitions/discovery/datacom.yaml b/includes/definitions/discovery/datacom.yaml
new file mode 100644
index 0000000000..f0118abb99
--- /dev/null
+++ b/includes/definitions/discovery/datacom.yaml
@@ -0,0 +1,11 @@
+mib: DMswitch-MIB
+modules:
+    sensors:
+        temperature:
+            data:
+                -
+                    oid: SwitchInfoEntry
+                    value: swTemperature 
+                    num_oid: .1.3.6.1.4.1.3709.3.5.201.1.1.2.1.12.
+                    descr: 'Temperature {{ $index }}'
+                    index: 'swTemperature.{{ $index }}'
diff --git a/mibs/datacom/DMswitch-MIB b/mibs/datacom/DMswitch-MIB
index d40fc69356..a074358cac 100644
--- a/mibs/datacom/DMswitch-MIB
+++ b/mibs/datacom/DMswitch-MIB
@@ -779,7 +779,7 @@ swChassisModel OBJECT-TYPE
         ::= { switchMgt 17 }
 
 switchSessionTable OBJECT-TYPE
-    SYNTAX      SEQUENCE OF SwitchSessionEntry
+    SYNTAX      SEQUENCE OF SwitchIndivAlarmOutEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION "Table about CLI sessions informations."
@@ -4820,4 +4820,44 @@ ddTransceiversTxBias OBJECT-TYPE
         DESCRIPTION "Transceiver tx bias information in Amperes"
         ::= { ddTransceiversEntry 6 }
 
+ddTransceiversTemperatureValue OBJECT-TYPE
+        SYNTAX      Integer32
+        UNITS       "Celsius (degrees C)"
+        MAX-ACCESS  read-only
+        STATUS      current
+        DESCRIPTION "Transceiver temperature infomation"
+        ::= { ddTransceiversEntry 7 }
+
+ddTransceiversVcc3v3Value OBJECT-TYPE
+        SYNTAX      Integer32
+        UNITS       "0.1 V"
+        MAX-ACCESS  read-only
+        STATUS      current
+        DESCRIPTION "Transceiver Vcc 3v3 infomation"
+        ::= { ddTransceiversEntry 8 }
+
+ddTransceiversRxPowerValue OBJECT-TYPE
+        SYNTAX      Integer32
+        UNITS       "0.1 dBm"
+        MAX-ACCESS  read-only
+        STATUS      current
+        DESCRIPTION "Transceiver rx power infomation"
+        ::= { ddTransceiversEntry 9 }
+
+ddTransceiversTxPowerValue OBJECT-TYPE
+        SYNTAX      Integer32
+        UNITS       "0.1 dBm"
+        MAX-ACCESS  read-only
+        STATUS      current
+        DESCRIPTION "Transceiver tx power infomation"
+        ::= { ddTransceiversEntry 10 }
+
+ddTransceiversTxBiasValue OBJECT-TYPE
+        SYNTAX      Integer32
+        UNITS       "0.1 mA"
+        MAX-ACCESS  read-only
+        STATUS      current
+        DESCRIPTION "Transceiver tx bias infomation"
+        ::= { ddTransceiversEntry 11 }
+
 END