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Honeywell XFL824A
Honeywell XFL824A

Honeywell XFL821A

Product Name: LONWORKS Analog Input Module

Product Description: Distributed 8-channel analog input I/O module for Honeywell Excel 5000 building automation system, supporting multiple analog sensor signal collection over LonWorks two-wire bus.

Category:
Description

Technical Specifications: Input channel: 8 analog inputs Signal types: 0~10VDC, 4~20mA (with external 500Ω resistor), NTC 20K, PT1000 Resolution:16 bit Auxiliary output voltage:10VDC, max 5mA Bus interface: LonWorks 2-wire bus, LonMark compliant

Functional Features: Per-channel configurable offset calibration. Support temperature sensor and standard analog transmitter input. LED status indicator for each channel. Distributed bus architecture reduces field wiring.

Application Scenarios: HVAC building automation, temperature, pressure, flow, humidity monitoring in commercial building, central air conditioning control system.

Material Composition: Flame retardant plastic housing, signal acquisition PCB, analog front-end circuit, LonWorks communication chip, LED indicators.

Structural Characteristics: DIN rail mount, pluggable terminal base, compatible XS821 / XSU821 terminal socket.

Working Principle: Sample analog voltage/resistance signal from field sensors, convert to digital value, transmit data to Excel controller via LonWorks bus.

Installation Requirements: Mount on DIN rail, install matched terminal base XS821 or XSU821. Connect 2-wire LonWorks bus and field sensor wiring.

Usage Notes: Separate shield wire for analog signal. Do not mix high voltage cable with low level sensor wiring.

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