PYXOS-FT Datasheet, PDF (6/7 Pages) List of Unclassifed Manufacturers – Pyxos™ FT Network Chip

®
Specifications
Features
Network Connections
Protocol
Response Time (Reading and Writing
4-byte values in each scan)
Data Integrity
MAC ID
Installation

Maximum Pyxos Points per Pyxos Pilot
Transmission Speed
Pyxos Network Variables (PNVs)
per hosted Pyxos Point
LonWorks Network Variables per Pyxos Pilot
Network Wiring


Network Length in Free Topology


Link Power


Coupling Options



EMI
ESD
ESD Human Body Model (MIL-STD-883)
(for pins NET_A and NET_B)
Radiated Electromagnetic Susceptibility
Fast Transient/Burst Immunity
Surge Immunity
Conducted RF Immunity
Common Mode Range (0 – 60Hz)

I/O

Pyxos Host Microcontroller Interface
Package
Operating Voltage
Operating Temperature
Description
Polarity-insensitive
Deterministic TDMA protocol with automatic retries on CRC error
≤25ms scan time for up to 32 Points. Scan time is proportionally faster two
with less Pyxos Points, e.g., 1.8ms for two Pyxos Points in the system
Forward error correction of up to 2 bit errors per packet; 18 bit packet CRC
Built-in
Self-organizing network with automatic, hardwired, and manual service-
pin methods
32
312.5 kilobits per second, fixed polling cycle
128 four-byte PNVs per Pyxos Point. Larger size PNVs can be defined
within total memory size available
62 when using ShortStack, 4096 when using MIP
Unshielded CAT-5 24AWG (0.5mm) and Belden 8471 16AWG (1.3mm)
twisted pair wire; see Junction Box and Wiring Guidelines application
note for cable details
Free Topology (Single termination): 100m (328 feet) maximum total
wire Bus Topology (Double termination): 400m (1312 feet) maximum;
0.3m (1 foot) maximum stub lengths
Supports 24VAC or 24VDC link power with optional external
components;
Reference designs provided for both switching and
linear power supplies Application Output Current: up to 100mA @ 3.3V DC
Direct Connect (for applications within a single enclosure)
Non-isolated/Grounded
Non-isolated/Floating
Transformer-isolated (very high common mode and interference immunity)
Designed to comply with FCC Part 15 Level A and EN55022 Level A
Designed to comply with 61000-4-2 Level 4 (contact - 8kV; air - 15kV)
8kV
Designed to comply with 61000-4-3 Level 3 (10Vrms)
Designed to comply with 61000-4-4 Level 4 (2kV)
Designed to comply with 61000-4-5 Level 3 (2kV)
Designed to comply with 61000-4-6 Level 3 (10Vrms)
277Vrms with Transformer-isolated coupling
+/-40V with Non-isolated/Grounded coupling
4 digital I/Os and 1 digital input without a microcontroller,
8mA drive, 5V tolerant for LEDs, digital I/O, and transistors
SPI (Serial Peripheral Interface)
20 Pin QFN 5mm x 5mm package
3.3V ±10%
-40ºC to +85ºC
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