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Siemens  PXC....D PXC...-E.D + PXA40-… – Automation stations modular series  CM1N9222en_03 
Building Technologies    16 Mar 2010 
Connection terminals and interfaces  
 
PXC....D  
 
24 V~
T
CLA
CLB
HMI
HMI
HMI / TOOL
(A)
(B)
(C)
(E)
(F)
(G)
9222Z10
123
45
 
 
 
PXC...-E.D  
24 V~
T
HMI 
9222Z11
(A)
(D)
(F)
(G)
123
 
 
 
1, 2 
24 V ~, 
  Operating voltage AC 24 V 
3 
 
 
Functional ground 
Plug-in screw terminal block 
(A) 
 
USB host interface (for modem via PXA-C3 adapter cable) 
4,5 (B)  CLA, CLB  LONWORKS bus      Plug-in screw terminal blocks 
(C) HMI 
RJ45 interface (L
ONWORKS) for operator unit PXM20 (tool as well) 
(D) 
 
RJ45 interface for Ethernet  
(Operator unit PXM20-E can be connected to hub/switch) 
(E) 
HMI / Tool 
RJ45 interface (LONWORKS and serial) for PXM10, PXM20 and tool 
(F) 
 
USB device interface (for future applications) 
(G)  HMI  RJ45 interface (serial) for operator unit PXM10