diff --git a/src/toolbox_scs/constants.py b/src/toolbox_scs/constants.py
index 28587b5e544d7dfd66adf0ca88d22d2c0e92f298..8c52674d4ee2c17a6850377cf427e32181a0e2bb 100644
--- a/src/toolbox_scs/constants.py
+++ b/src/toolbox_scs/constants.py
@@ -142,6 +142,17 @@ mnemonics = {
                 'key': 'interlock.AActionState.value',
                 'dim': None},),
 
+    # XTD10 MCP (after GATT)
+    'XTD10_MCP3raw': ({'source': 'SA3_XTD10_MCP/ADC/1:channel_3.output',
+                       'key': 'data.rawData',
+                       'dim': ['XTD10_MCPsampleId']},),
+    'XTD10_MCP5raw': ({'source': 'SA3_XTD10_MCP/ADC/1:channel_5.output',
+                       'key': 'data.rawData',
+                       'dim': ['XTD10_MCPsampleId']},),
+    'XTD10_MCP9raw': ({'source': 'SA3_XTD10_MCP/ADC/1:channel_9.output',
+                       'key': 'data.rawData',
+                       'dim': ['XTD10_MCPsampleId']},),
+
     # DPS imagers
     "DPS1CAM2": ({'source': 'SCS_BLU_DPS-1/CAM/IMAGER2CAMERA:daqOutput',
                   'key': 'data.image.pixels',