Technical Specifications
Table 9: FX-PCX3721 Technical Specifications
FX-PCX3721 Expansion Input/Output Module
Product Code Number
24 VAC (nominal, 20 VAC minimum/30 VAC maximum), 50/60 Hz, power supply
Class 2 (North America), Safety Extra-Low Voltage (SELV) (Europe)
Supply Voltage
14 VA maximum
Power Consumption
Operating:
0 to 50°C (32 to 122°F); 10 to 90% RH noncondensing
Storage:
-40 to 80°C (-40 to 176°F); 5 to 95% RH noncondensing
Ambient Conditions
DIP switch set; valid controller device addresses 4–127 (Device addresses 0–3 and
128–255 are reserved and not valid controller addresses.)
Addressing
BACnet
®
MS/TP, RS-485:
3-wire FC Bus between the supervisory controller and other controllers
4-wire SA bus between controller, network sensors and other sensor/actuator devices,
includes a lead to source 15 VDC supply power (from controller) to bus devices.
Communications Bus
H8SX/166xR Renesas
®
32-bit microcontroller
Processor
640 KB Flash Memory and 128 KB Random Access Memory (RAM)
Memory
16 - Binary Inputs:
Defined as Dry Contact Maintained or Pulse Counter/Accumulator
Mode
Input and Output Capabilities
Input/Output:
Fixed Screw Terminal Blocks
SA/FC Bus and Supply Power:
4-Wire and 3-Wire Pluggable Screw Terminal
Blocks
SA/FC Bus Port:
RJ-12 6-Pin Modular Jacks
Terminations
Horizontal on single 35 mm DIN rail mount (preferred), or screw mount on flat surface
with three integral mounting clips on controller
Mounting
Enclosure material:
ABS and polycarbonate UL94 5VB; Self-extinguishing, Plenum
Rated
Protection Class: IP20 (IEC529)
Housing
150 x 164 x 53 mm (5-7/8 x 6-1/2 x 2-1/8 in.) including terminals and mounting clips
Note:
Mounting space requires an additional 50 mm (2 in.) space on top, bottom
and front face of controller for easy cover removal, ventilation and wire terminations.
Dimensions(Height x Width x Depth)
0.5 kg (1.1 lb)
Weight
United States:
UL Listed, File E107041, CCN PAZX, UL 916, Energy Management
Equipment
FCC Compliant to CFR47, Part 15, Subpart B, Class A
Compliance
Canada:
UL Listed, File E107041, CCN PAZX7 CAN/CSA C22.2 No.205, Signal
Equipment
Industry Canada Compliant, ICES-003
Europe:
Johnson Controls, Inc. declares that this product is in compliance with the
essential requirements and other relevant provisions of the EMC Directive
2004/108/EC.
Australia and New Zealand
: C-Tick Mark, Australia/NZ Emissions Compliant
BACnet International:
BACnet Testing Laboratories (BTL) Protocol Revision 4
Listed BACnet Application Specific Controller (B-ASC)
The performance specifications are nominal and conform to acceptable industry standard. For application at conditions
beyond these specifications, consult the local Johnson Controls
®
office. Johnson Controls, Inc. shall not be liable
for damages resulting from misapplication or misuse of its products.
13
FX-PCX3721 Expansion Input/Output Module Installation Instructions
