diff --git a/rd_unb2c.py b/rd_unb2c.py
index 7b539a91f13ee6484f1f79e1435da1c095104b47..7763aa4069582f01dd57ceefcda73942b33ab711 100644
--- a/rd_unb2c.py
+++ b/rd_unb2c.py
@@ -16,16 +16,16 @@ from UniBoard2_I2C import *
 I2CBUSNR=3
 
 class c_unb2c:
-    def __init(self):
+    def __init__(self):
         self.status=False
         self.nodes=[]
         self.pols=[]
         for node_cnt in range(4):
             self.nodes.append(c_node(node_cnt))
         for pol in list(CTR_POLS.keys()):
-            self.pols.append(c_pol(pol))
+            self.pols.append(c_pol(pol, type="central"))
         self.dev_i2c_eeprom = I2C(EEPROM)
-        self.dev_i2c_eeprom = I2CBUSNR
+        self.dev_i2c_eeprom.bus = I2CBUSNR
 
     def write_eeprom(self, data=0x01):
         ret_ack, ret_value = self.dev_i2c_eeprom.read_bytes(0)
@@ -34,23 +34,22 @@ class c_unb2c:
         else:
             self.dev_i2c_eeprom.write_bytes(0x00, data)
 
-    def read_eeprom(self, data):
+    def read_eeprom(self):
         ret_ack, ret_value = self.dev_i2c_eeprom.read_bytes(0)
         if ret_ack < 1:
             print("no device found")
         else:
-            self.dev_i2c_eeprom.write_bytes(0x00, value)
-            ret_ack, ret_value = I2C_eeprom.read_bytes(0x00, 1)
+            ret_ack, ret_value = self.dev_i2c_eeprom.read_bytes(0x00, 1)
         return ret_value
 
-    def wr_rd_eeprom(self):
-        self.write_eeprom(0x12)
+    def wr_rd_eeprom(self, value=0x34):
+        self.write_eeprom(value)
         ret_value = self.read_eeprom()
         stri = "Wrote to EEPROM: 0x{0:X}, Read from EEPROM: 0x{1} ".format(value, ret_value)
         print(stri)
 
 
-    def front_led(collor):
+    def front_led(self, collor):
         main_switch = I2C(MAIN_I2C_SWITCH)
         main_switch.bus = I2CBUSNR
         ret_ack = main_switch.write_bytes(0x20,0x20) #select LED
@@ -68,7 +67,7 @@ class c_unb2c:
     def read_all(self):
         for node in self.nodes:
             node.read_all()
-        for pol in self.nodes:
+        for pol in self.pols:
             pol.read_all()
 
     def print_status(self):
@@ -77,7 +76,7 @@ class c_unb2c:
             self.front_led(LED_COLORS[color])
         for node in self.nodes:
             node.print_status()
-        for pol in self.nodes:
+        for pol in self.pols:
             pol.print_status()
         self.wr_rd_eeprom()
 
@@ -149,7 +148,6 @@ class c_qsfp:
 
     def read_temp(self):
         self.select_qsfp()
-        print("read QSFP")
         ret_ack, raw_ret = self.qsfp_cage.read_bytes(QSFP_TEMP, 2)
         if (ret_ack < 1) | (raw_ret[:2]=='ff'):
 #           stri = "No QSFP found in port {0}".format(self.port)
@@ -239,7 +237,9 @@ class c_pol:
         self.tem=0
         if type == "node":
             self.set_i2c_switch()
-        self.pol_dev = I2C(LOC_POLS[self.name])
+            self.pol_dev = I2C(LOC_POLS[self.name])
+        else:
+            self.pol_dev = I2C(CTR_POLS[self.name])
         self.pol_dev.bus = I2CBUSNR
         sleep(0.1)
         ret_ack, ret_value = self.pol_dev.read_bytes(0)
@@ -498,6 +498,6 @@ if 0:
 #    node = c_node(cnt)
 #    node.read_all()
 #    node.print_status()
-unb = c_unb2c
+unb = c_unb2c()
 unb.read_all()
-unb.print_status()
\ No newline at end of file
+unb.print_status()