FX-PCX2721 Expansion Input/Output
Module Installation Instructions
Application
The FX-PCX2721 expansion module is part of the Facility Explorer
®
FX-PC Series Programmable
Controller family. FX-PCXs expand the number of Input/Output points connected to either an FX-
PCA, FX-PCG, or FX-PCV programmable controller or to a supervisory controller to monitor and
control a wide variety of HVAC equipment.
FX-PCXs operate on an RS-485 BACnet
®
MS/TP Bus and integrate into Johnson Controls
®
and
third-party BACnet systems. FX-PCXs communicate using the BACnet MS/TP protocol when directly
connected to the FC Bus.
Note: With Release 10.1 or later of the Controller Configuration Tool (CCT), PCAs, PCGs, or
PCVs can be configured to communicate using either the BACnet MS/TP or the N2 field bus
networking protocol. The operation of the FX-PCX is not affected by the selection of the
BACnet MS/TP or the N2 protocol in the host controller, when the PCX is connected to the host
controller using the SA bus.
North American Emissions Compliance
United States
This equipment has been tested and found to comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when this equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area may cause harmful
interference, in which case the users will be required to correct the interference at their own
expense.
Canada
This Class (A) digital apparatus meets all the requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la Classe (A) respecte toutes les exigences du Règlement sur le
matériel brouilleur du Canada.
Part No. 24-10144-173 Rev. G
2019-03-22
(barcode for factory use only)
FX-PCX2721-0
*2410144173G*
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