Table 11: FX-PCX2721 technical specifications
Communications Bus BACnet MS/TP, RS-485:
3-wire FC Bus between the supervisory controller and
other controllers or expansion modules (for MS/TP bus
communications at 38,400 baud)
4-wire SA Bus between expansion module, network sensors and
other sensor/actuator devices, includes a lead to source 15 VDC
supply power (from controller or expansion modules) to bus
devices (for MS/TP bus communications at 38,400 baud)
Processor H8SX/166xR Renesas
®
32-bit microcontroller
Memory 640 KB Flash Memory and 128 KB Random Access Memory (RAM)
Input and Output Capabilities 8 - Universal Inputs: Defined as 0–10 VDC, 4–20 mA, 0–600k
ohm, or Binary Dry Contact
2 - Analog Outputs: Defined as 0–10 VDC or 4–20 mA
Terminations Input/Output: Fixed Screw Terminal Blocks
SA/FC Bus and Supply Power: 4-Wire and 3-Wire Pluggable
Screw Terminal Blocks
Mounting Horizontal on single 35 mm DIN rail mount (preferred), or screw
mount on flat surface with three integral mounting clips on
expansion module
Housing Enclosure material: ABS and polycarbonate UL94 5VB; self-
extinguishing, plenum-rated
Protection Class: IP20 (IEC529)
Dimensions (Height x Width x
Depth)
150 mm x 164 mm x 53 mm (5-7/8 in. x 6-1/2 in. x 2-1/8 in.)
including terminals and mounting clips
Note: Mounting space requires an additional 50 mm (2 in.)
on top, bottom, and front face of expansion module for
easy cover removal, ventilation, and wire terminations.
Weight 0.5 kg (1.1 lb)
United States: UL Listed, File E107041, CCN PAZX, UL 916,
Energy Management Equipment
FCC Compliant to CFR47, Part 15, Subpart B, Class A
Canada: UL Listed, File E107041, CCN PAZX7 CAN/CSA C22.2
No.205, Signal Equipment
Industry Canada Compliant, ICES-003
Europe: Johnson Controls declares that this product is in
compliance with the essential requirements and other relevant
provisions of the EMC Directive.
Compliance
Australia and New Zealand: RCM Mark, Australia/NZ Emissions
Compliant
FX-PCX2721 Expansion Input/Output Module Installation Instructions26
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