Advertisement
Document No. 553-504
Installation Instructions
October 9, 2019
Applications Requiring a Secure Enclosure
For any application requiring a secure enclosure, mount
the PXC Compact inside a listed enclosure along with a
Service Box and Sidewall Kit, if needed.
Power Requirements
One of the following power sources is pulled to the
enclosure:
•
120 Vac, 60 Hz and terminated at the 115V PX
Series Service Box.
•
230 Vac, 50/60 Hz and terminated at the 230V
PX Series Service Box.
•
24 Vac, 50/60 Hz Class 1 power limited from a
third-party transformer and connected to a
terminal block.
•
If powering a TX-I/O expansion panel, power
wiring is run from the transformer in the primary
panel to the expansion panel, if needed.
CAUTION:
For information on extending the TX-I/O island
bus outside the enclosure, see the APOGEE
Wiring Guidelines for Field Panels and
Equipment Controllers (125-3002).
Depending on the module types and point
configurations used, one service box
transformer may have insufficient power for
more than two TX-I/O Power Supplies. More
power may be required if using a Modular
Series with the maximum number of TX-I/O
modules.
Page 2 of 5
Figure 1: Example ALN Configuration for Smoke Control.
Compact Series Smoke Control
Application Requirements
The modem, serial cable, and surge suppressor must be
installed inside the 19-inch or 34-inch PX Series
enclosure with a Service Box.
For modems used with smoke control applications:
•
The UL864 Listed surge protector is required.
•
Devices connected between the USB port and
the UL Listed surge protector must be located
within the same room.
•
A USB-to-RS-232 adaptor may be needed for UL
Listed modems or UL Listed printers that are not
configured for USB communication.
•
The modem may be located inside the PX Series
enclosure.
Example ALN Configuration for
Smoke Control Applications
The RS-485 ALN does not have the same restrictions as
the Ethernet ALN for smoke control. Namely, Ethernet
requires UL listed switches and routers.
The following figure displays a possible ALN
configuration for smoke control.
Siemens Industry, Inc.
Advertisement
