diff --git a/custom_components/benq_smartboard/benq_smartboard_lib.py b/custom_components/benq_smartboard/benq_smartboard_lib.py
index 0be0d27..bf18d6b 100644
--- a/custom_components/benq_smartboard/benq_smartboard_lib.py
+++ b/custom_components/benq_smartboard/benq_smartboard_lib.py
@@ -157,6 +157,11 @@ class SwitchOnStatus(Enum):
     FORCE_ON = '001'
     LAST_STATUS = '002'
 
+@unique
+class ConnectionType(Enum):
+    TCP = 'tcp'
+    SERIAL = 'serial'
+
 
 # -- The Main BenQSmartBoard Class --------------------------------------------