RS485, (electrically isolated) 
Baud rate, data bits / stop bit(s), parity 
As for RS232 (depends on software) 
Standard RS bus cable 
Max. 1200 m 
Solid or stranded conductors 
0.25…2.5 mm2 or 2 x 1.5 mm2 
Simple cable lengths, cable 
types
 
Connection cable Ethernet and PXM20-E 
Standard at least CAT5  
UTP (Unshielded Twisted Pair) 
 
or STP (Shielded Twisted Pair) 
Connection cable LONWORKS bus 
See Installation Guide CA110396 
Housing protection standard 
5…95 % r.h. (non-condensing) 
5…95 % r.h. (non-condensing) 
Standards, directives and 
approvals 
 
2en_C1 
 
AMEV: Supports profiles AS-A and AS-B to 
AMEV directive "BACnet in public 
 
Document download 
www.hqs.sbt.siemens.com/gip/general/dlc/dl
c_mobile_direct.asp?BPZ:PXC001
 
Environmental compatibility 
The product environmental declaration 
CM1E9223 contains data on 
environmentally compatible product design 
and assessments (RoHS compliance, 
materials composition, packaging, 
environmental benefit, disposal) 
ISO 14001 (Environment) 
ISO 9001 (Quality)
 
PXC001.D, PXC001-E.D 
 
 
 
   
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Siemens  PXC001   System controllers  CM1N9223en_01 
Building Technologies    2014-04-04