Index: leahi_dialin/common/td_defs.py
===================================================================
diff -u -r175101bed0d998f3e0c6ff24d90603acb0106e4d -r8bcac0e6e7960de5d9bdf925bbf5581cdc97df31
--- leahi_dialin/common/td_defs.py	(.../td_defs.py)	(revision 175101bed0d998f3e0c6ff24d90603acb0106e4d)
+++ leahi_dialin/common/td_defs.py	(.../td_defs.py)	(revision 8bcac0e6e7960de5d9bdf925bbf5581cdc97df31)
@@ -249,7 +249,9 @@
 class TDEjectorAttributes(DialinEnum):
     STATE                                                   = 0     # Ejector State to command
     SET_SPEED                                               = 1     # Ejector Set Speed
-    NUM_OF_EJECTOR_ATTRIBUTES                               = 2     # Number of Ejector Attributes
+    OPT_SNSR_RETRACT                                        = 2     # Ejector optical sensor retract
+    OPT_SNSR_ENGAGE                                         = 3     # Ejector optical sensor engage
+    NUM_OF_EJECTOR_ATTRIBUTES                               = 4     # Number of Ejector Attributes
 
 @unique
 class TDPressureSensorNames(DialinEnum):