88  EasyLine EL3000 Series Commissioning Instructions 
 
Electrical Connections Profibus Module 
 
RS485 Interface 
Pin Signal  Explanation 
1 –  not assigned 
2  M24  24 V output voltage, ground 
3  RxD/TxD-P Receive/send data plus, B line 
4 –  not assigned 
5  DGND  Data transmission potential (reference potential for 
VP) 
6  VP  Supply voltage plus (5 V) 
7  P24  24 V output voltage plus, max. 0.2 A 
8 RxD/TxD-
N 
Receive/send data N, A line 
9 –  not assigned 
Design: 9-pole female Sub-D plug 
MBP Interface (not intrinsically safe) 
Pin Signal 
1 + 
2 Shield 
3 – 
4 not assigned
Design: 4-pole plug-in terminal strip. Please refer to the information about 
the requisite material (see page 89). 
NOTE 
For detailed information on "Profibus", refer to the Technical Information 
"EL3000, EL3060 – PROFIBUS DP/PA Interface".