Data Sheet for Product

PXC Modular Series for BACnet Networks
Modular Series Specifications
6
Siemens Industry, Inc. 149-487
Smart Infrastructure 2020-05-20
Modular Series Specifications
Dimensions (L × W × D)
PXC Modular 7.56" × 3.54" × 2.76"
(192 mm × 90 mm × 70 mm)
FLN Expansion Module
1.26" × 3.54" × 2.76"
(32 mm × 90 mm × 70 mm)
DIN rail (EN 60715 TH 35-7.5, steel)
1.38" × 0.30" × 0.04"
(35 mm × 7.5 mm × 1 mm)
Processor, Battery, and Memory
Processor MPC885 (PowerPC )
Processor Clock Speed 133 MHz
Memory 80 MB (64 MB SDRAM, 16 MB Flash ROM)
Serial EEPROM 4 KB
Secure Digital (SD) memory card (for
future use)
Expandable or removable non-volatile memory
Battery backup of SDRAM 30 days (accumulated), AA (LR6) 1.5 Volt Alkaline (non-rechargeable)
Battery backup of Real Time Clock 12 months (accumulated), Coin cell (BR2032) 3 Volt lithium
Real Time Clock Initial Accuracy ±30 seconds/month typical @ 77°F (25°C)
Communication
BACnet/IP Automation Level Network
(ALN)
10Base-T or 100Base-TX compilant
BACnet MS/TP Automation Level Network
(ALN) or Secondary BACnet MS/TP Field
Level Network (FLN)
RS-485, 9600 bps to 115.2 Kbps, 1/8 Load
BACnet MS/TP Field Level Network (FLN)
on PXX-485.3 Expansion Module
RS-485, 9600 bps to 115.2 Kbps, 1/8 Load
P1 Wired/Wireless Field Level Network
(FLN) on PXX-485.3 Expansion Module
RS-485 x 3, 4800 bps to 38.4 Kbps, 1/8 load
TX-I/O self-forming bus connection
115.2 Kbps, 5 pin connector (middle pin is not connected)
Human-Machine Interface (HMI) Advanced
User Mode
RS-232 compliant, 1200 bps to 115.2 Kbps (default)
USB Device port (for non-smoke control
applications only)
Standard 1.1 and 2.0 USB device port, Type B female connector
USB Host port on selected models (for
ancillary smoke control applications only).
Standard 1.1 and 2.0 USB host port, Type A female connector
Electrical Rating
Power Requirements
24 Vac +/-20% input @ 50/60 Hz
Power Consumption (Maximum)
24 VA @ 24 Vac
AC Power
NEC Class 2
Communication
NEC Class 2