diff --git a/configs/config_example.py b/configs/config_example.py
index bbd62e03334d0cf427f1b1506d15349d019ee2bf..89aadc8cef8f7651e9df6a7e692d230fa6fe3679 100644
--- a/configs/config_example.py
+++ b/configs/config_example.py
@@ -179,6 +179,8 @@ HARDWARE_CONFIG = {
                  'mux_01':
                      {'model': 'mux_2023_0_X',
                       'electrodes': range(17, 65+16),
+                      'roles': 'A',
+                      'mux_tca_address': 0x71
                      }
                  },
              'default': {'interface_name': 'i2c_ext',