diff --git a/dev/test_mb_2024_4_mux_2023.py b/dev/test_mb_2024_4_mux_2023.py
index 3dd2d337d30b94c9cbbc74232766571d1ec6d5b7..ceceb8041908281afe7c1c9df930dc63aad601f1 100644
--- a/dev/test_mb_2024_4_mux_2023.py
+++ b/dev/test_mb_2024_4_mux_2023.py
@@ -40,32 +40,23 @@ if stand_alone:
     rx = rx_module.Rx(**HARDWARE_CONFIG['rx'])
     tx = tx_module.Tx(**HARDWARE_CONFIG['tx'])
     pwr = pwr_module.Pwr(**HARDWARE_CONFIG['pwr'])
-    mux_ids = ['mux_A', 'mux_B']
-    for m, mux_id in enumerate(mux_ids):
-        mux_module = importlib.import_module(
-            f'ohmpi.hardware_components.{HARDWARE_CONFIG["mux"]["boards"][mux_id].pop("model")}')
+    role = 'A'
+    mux_id = f'mux_{role}'
+    mux_boards = []
+    mux_module = importlib.import_module(
+        f'ohmpi.hardware_components.{HARDWARE_CONFIG["mux"]["boards"][mux_id].pop("model")}')
 
-        MUX_CONFIG = HARDWARE_CONFIG['mux']['boards'][mux_id]
+    MUX_CONFIG = HARDWARE_CONFIG['mux']['boards'][mux_id]
 
-        MUX_CONFIG.update({'ctl': ctl, 'connection': MUX_CONFIG.pop('connection', ctl.interfaces[
-                                           MUX_CONFIG.pop('interface_name', 'i2c_ext')]), 'exec_logger': ctl.exec_logger,
-                       'soh_logger': ctl.soh_logger})
-        MUX_CONFIG.update({'id': mux_id})
-        mux = mux_module.Mux(**MUX_CONFIG)
+    MUX_CONFIG.update({'ctl': ctl, 'connection': MUX_CONFIG.pop('connection', ctl.interfaces[
+                                       MUX_CONFIG.pop('interface_name', 'i2c_ext')]), 'exec_logger': ctl.exec_logger,
+                   'soh_logger': ctl.soh_logger})
+    MUX_CONFIG.update({'id': mux_id})
+    mux = mux_module.Mux(**MUX_CONFIG)
+    mux.reset()
 
-        # tx.polarity = 1
-        # time.sleep(1)
-        # tx.polarity = 0
-        # mux.switch(elec_dict={'A': [1], 'B': [4], 'M': [2], 'N': [3]}, state='on')
-        # time.sleep(1)
-        # voltage = rx.voltage
-        # current = tx.current
-        # mux.switch(elec_dict={'A': [1], 'B': [4], 'M': [2], 'N': [3]}, state='off')
-        # print(f'Resistance: {voltage / current :.2f} ohm, voltage: {voltage:.2f} mV, current: {current:.2f} mA')
-        mux.reset()
-        mux.test({'A': [i for i in range(1, 65)], 'B': [i for i in range(1, 65)],
-                  'M': [i for i in range(1, 65)], 'N': [i for i in range(1, 65)]}, activation_time=.1)
-        mux.reset()
+    mux.test({role: [i for i in range(1, 65)]}, activation_time=.1)
+    mux.reset()
 
 # mux as part of a OhmPiHardware system
 if part_of_hardware_system: