Index: firmware/App/Services/CommBuffers.h
===================================================================
diff -u -r8b8fff67b95805272f37855346d600599aaec03d -r52ded7b22d4b413aa8182f1343e4fbb78e8c3b0a
--- firmware/App/Services/CommBuffers.h	(.../CommBuffers.h)	(revision 8b8fff67b95805272f37855346d600599aaec03d)
+++ firmware/App/Services/CommBuffers.h	(.../CommBuffers.h)	(revision 52ded7b22d4b413aa8182f1343e4fbb78e8c3b0a)
@@ -31,7 +31,7 @@
 
 // ********** public definitions **********
 
-/// List of comm buffers.
+/// Enumeration of CAN communication buffers.  Buffers are ordered by priority.
 typedef enum Comm_Buffers
 {
     COMM_BUFFER_NOT_USED = 0,                                   ///< Unused buffer - CAN message boxes start at 1
@@ -40,14 +40,12 @@
     COMM_BUFFER_IN_CAN_RO_ALARM,                                ///< Buffer for incoming RO alarm messages
     COMM_BUFFER_IN_CAN_UI_ALARM,                                ///< Receiving buffer for UI alarm via CAN
     COMM_BUFFER_IN_CAN_TD_2_DD,                                 ///< Receiving buffer for TD to DD communication via CAN
-    COMM_BUFFER_OUT_CAN_DD_2_TD,                                ///< Transmitting buffer for DD to TD communication via CAN
-    COMM_BUFFER_IN_CAN_TD_BROADCAST,                            ///< Receiving buffer for TD broadcast communication via CAN
+    COMM_BUFFER_OUT_CAN_DD_2_TD,                                ///< Transmitting buffer for DD to TD communication via CAN
+    COMM_BUFFER_OUT_CAN_DD_2_RO,                                ///< Transmitting buffer for DD to RO communication via CAN
     COMM_BUFFER_IN_CAN_RO_2_DD,                                 ///< Receiving buffer for RO to DD communication via CAN
-    COMM_BUFFER_OUT_CAN_DD_2_RO,                                ///< Transmitting buffer for DD to RO communication via CAN
+    COMM_BUFFER_IN_CAN_TD_BROADCAST,                            ///< Receiving buffer for TD broadcast communication via CAN
+    COMM_BUFFER_OUT_CAN_DD_BROADCAST,                           ///< Transmitting buffer for DD broadcast communication via CAN
     COMM_BUFFER_IN_CAN_RO_BROADCAST,                            ///< Receiving buffer for RO broadcast communication via CAN
-    //COMM_BUFFER_OUT_CAN_DD_2_UI,                                ///< Transmitting buffer for DD to UI communication via CAN
-    COMM_BUFFER_OUT_CAN_DD_BROADCAST,                           ///< Transmitting buffer for DD broadcast communication via CAN
-    //COMM_BUFFER_IN_CAN_UI_2_DD,                                 ///< Receiving buffer for UI to DD communication via CAN
     COMM_BUFFER_IN_CAN_UI_BROADCAST,                            ///< Receiving buffer for UI broadcast communication via CAN
     COMM_BUFFER_IN_CAN_PC,                                      ///< Receiving buffer for PC communication via CAN
     COMM_BUFFER_OUT_CAN_PC,                                     ///< Transmitting buffer for PC communication via CAN