Index: leahi_dialin/common/dd_defs.py
===================================================================
diff -u -r27cd8e0e7b47617083e8c12f73306f0ba648e687 -r5f8fef12f850bb73e1f8e7d7372a404e9db07fa4
--- leahi_dialin/common/dd_defs.py	(.../dd_defs.py)	(revision 27cd8e0e7b47617083e8c12f73306f0ba648e687)
+++ leahi_dialin/common/dd_defs.py	(.../dd_defs.py)	(revision 5f8fef12f850bb73e1f8e7d7372a404e9db07fa4)
@@ -450,7 +450,18 @@
     'NUM_OF_PISTON_PUMPS': [],
 }
 
+@unique
+class DDSubstitutionPumpNames(DialinEnum):
+    D92_PUMP            = 0                                     # HDF Substitution pump
+    NUM_OF_SUB_PUMPS    = 1                                     # Number of substituion pumps
 
+DDPistonPumpNames._str_list = {
+    # Official Name :       Accepted strings
+    'D92_PUMP': ['d92', 'sub pump'],
+    'NUM_OF_SUB_PUMPS': [],
+}
+
+
 @unique
 class DDPressureSensorNames(DialinEnum):
     D9_PRES                 = 0                                 # Hydraulics outlet pressure (PHo/Pn)
@@ -985,3 +996,20 @@
     'CANCELLATION_MODE_WATER': ['water'],
     'NUM_OF_CANCELLATION_MODES': [],
 }
+
+@unique
+class DDSubstitutionPumpAttributes(DialinEnum):
+    TARGET_SPEED                        = 0                     # Target RPM Substitution Pump Attribute
+    CURRENT_SPEED                       = 1                     # Current Speed Substitution Pump Attribute
+    STATE                               = 2                     # State to command Substitution Pump Attribute
+    MEASURED_SPEED                      = 3                     # Measured Speed Substitution Pump Attribute
+    NUM_OF_DIALYSATE_PUMP_ATTRIBUTES    = 4                     # Number of Substitution Pump Attributes
+
+DDDialysatePumpAttributes._str_list = {
+    # Official Name :       Accepted strings
+    'TARGET_SPEED': ['target rp,'],
+    'CURRENT_SPEED': ['current speed'],
+    'STATE': ['state'],
+    'MEASURED_SPEED': ['measured speed'],
+    'NUM_OF_DIALYSATE_PUMP_ATTRIBUTES': [],
+}