Installation Instructions 
Document No. 553-504 
October 9, 2019 
 
Siemens Industry Inc.  Page 1 of 5 
Item Number: 553-504(CA) 
Danger/Warning/Caution Notations 
Electric shock, death, or severe 
property d
amage may occur if you do 
re as specified.
 
Personal injury or property damage 
may occur if you do not foll
ow a 
 
 
Equipment damage or loss of data 
may occur if you do not follow a 
procedure as specified.
 
Product Numbers 
PXC36-E.A  
PXC Compact, 36 point, BACnet/IP or MS/TP 
ALN  
PXC36-EF.A  
PXC Compact, 36 point, BACnet/IP or MS/TP 
ALN, Island Bus, P1 or MS/TP FLN 
PXC36-PE.A  
PXC Compact, 36 point, Ethernet/IP or RS-485 
ALN  
PXC36-PEF.A 
PXC Compact, 36 point, Ethernet/IP or RS-485 
ALN, Island Bus, P1 FLN 
 
 
For more information, see the 
TX-I/O Module Installation 
Instructions 
(553-141) and 
TX-I/O Power Supply and 
Bus Modules Installation Instructions
 (553-142). 
Product Description 
The PXC Compact Series communicates with other field 
panels or workstations on a peer-to-peer Automation 
Level Network (ALN), or on the Field Level Network 
(FLN), and supports the following communication 
options:  
•  BACnet/IP or Ethernet TCP/IP over 10/100 MB 
Ethernet networks 
•  RS-485 P2 or BACnet MS/TP on RS-485 
networks 
Required Tools and Materials 
•  Wire stripper/side cutter 
•  Small flat-blade screwdriver 
•  Phillips screwdriver 
•  Electric drill and Phillips driver bit 
•  Level 
•  Tape measure 
•  Digital multimeter (DMM) 
•  Black marker 
•  Masonry drill bit (to mount on concrete or 
masonry) 
•  Four wall anchors (to mount on concrete or 
masonry) 
•  Optional DIN rail (1.38" × 0.3" × 0.04" (35 mm × 
7.5 mm × 1 mm)) 
Included Materials 
The following screws are included for mounting the PXC 
Compact without a DIN rail: 
•  Four No. 8-18 × 3/8” self-tapping Phillips screws 
•  Four No. 8-18 × 3/4” self-drilling Phillips screws 
•  Two No. 8-18 × 1-3/4” self-drilling Phillips screws 
Expected Installation Time 
20 minutes 
Prerequisites 
 
No power wiring is connected to the field 
panel controller or other TX-I/O 
components at this time. 
The TX-I/O island bus must be mounted on 
a DIN rail (1.38" × 0.3" × 0.04" (35 mm × 
7.5 mm × 1 mm)). 
•  If mounting in an enclosure: 
−  Enclosure is installed, DIN rail included. 
−  The power source is installed, as applicable. 
−  The power is OFF. 
•  All necessary wiring is pulled and terminated per 
the layout drawing. 
•  Power and communication wiring is terminated to 
the removable plugs supplied with the devices. 
CE Compliance Requirements 
Must be installed inside a metal enclosure rated at IP20 
minimum. 
Energy Management Applications 
For energy management only (low voltage Class 2), the 
PXC Compact may be mounted on a flat surface.