Operating Instructions

Table Of Contents
Chapter 2Hardware Features
36-Point Compact Series Product Diagram
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Siemens Industry, Inc.
Owner's Manual
553-104
Building Technologies
2018-10-01
PXC-16 and PXC-24 Status LEDs.
Status LED
Label
Indicates
RS-485 TX
RS-485 TX
(yellow)
Flashing - Transmitting information over the RS-485 RS-485 P2 or
BACnet MS/TP ALN or P1 or MS/TP FLN (depending on how the port is
defined).
OFF or ON solid - No device, no connection, or bad connection.
RS-485 RX
RS-485 RX
(yellow)
Flashing - Receiving information over the RS-485 RS-485 P2 or BACnet
MS/TP ALN or P1 or MS/TP FLN (depending on how the port is
defined).
OFF or ON solid - No device, no connection, or bad connection.
PXC-16: DO 14 through DO 16; PXC-24:
DO 20 through DO 24
DO
XX
ON Relay Energized.
36-Point Compact Series Product Diagram
PXC-36 Features, Symbols, and Status LEDs.
Terminal Block Connection
Label
Indicates
1
24V
~
Supply voltage, 24 Vac input.
2
System neutral.