diff --git a/devices/devices/unb2.py b/devices/devices/unb2.py
index 7c81f8eadc07ea987dca895dc57f3c4a3cdb0fd3..f8d628efd8cb7a6ea42c2e7dcb7f9e0366b5ebed 100644
--- a/devices/devices/unb2.py
+++ b/devices/devices/unb2.py
@@ -134,6 +134,7 @@ class UNB2(opcua_device):
   ##UNB2_translator_busy_R = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_translator_busy_R"], datatype=numpy.bool_)
   ##UNB2_monitor_rate_RW = attribute_wrapper(comms_annotation=["2:PCC", "2:UNB2_monitor_rate_RW"], datatype=numpy.double, dims=(N_unb,), access=AttrWriteType.READ_WRITE)
 
+    # OPC-UA MP only points for AIT
     FPGA_signal_input_mean_R = attribute_wrapper(comms_annotation=["2:PCC", "2:FPGA_signal_input_mean_R"], datatype=numpy.double , dims=(N_pn, S_pn))
     FPGA_signal_input_rms_R = attribute_wrapper(comms_annotation=["2:PCC", "2:FPGA_signal_input_rms_R"], datatype=numpy.double, dims=(N_pn, S_pn))