I/O Module

FW2821 - Input/Output Interface Module

Dual Interface Capability • Intelligent Control • System Integration

INPUT/OUTPUT INTERFACE
UL Listed

I/O Module

FW2821

UL Listed
Dual Interface
Quality Tested
Easy Install

The FW2821 I/O Module is a versatile input/output interface designed for fire alarm systems. It provides both monitoring and control capabilities, allowing integration with various building systems and devices for comprehensive fire protection.

Get Quote

Technical Specifications

Model NumberFW2821
Product NameI/O Module
CategoryInterface Module
CertificationUL Listed (UL864)
ManufacturerMaple Armor / Tongfang
Warranty2-Year Standard
Input Channels2 Style B (Class B) Inputs
Output Channels2 Form C Relay Outputs
Relay Ratings2A @ 30VDC, 0.5A @ 120VAC
Operating Voltage15-32VDC
Current ConsumptionStandby: 3mA, Active: 20mA
Communication ProtocolProprietary MAP Protocol
Address Range1-159 (Programmable)
Operating Temperature-10°C to +55°C (14°F to 131°F)
Storage Temperature-20°C to +70°C (-4°F to 158°F)
Humidity10% to 93% RH (Non-condensing)
EnclosurePlastic, DIN Rail Mountable
Dimensions (HxWxD)4.2" x 3.0" x 1.5" (107 x 76 x 38mm)
Weight0.4 lbs (0.18 kg)
Wire Gauge12-22 AWG for field wiring
LED IndicatorsPower, Communication, Input, Output

Product Overview

The FW2821 I/O Module is a dual-function interface device that combines input monitoring and output control capabilities. It serves as a bridge between the fire alarm control panel and various building systems, providing both status monitoring and device control.

Dual Functionality

Combines 2 input monitoring channels and 2 relay output controls in a single compact module.

UL Listed Safety

Certified to UL864 standards for fire alarm system components, ensuring code compliance.

Intelligent Control

Advanced microprocessor-based design with programmable logic and status reporting.

System Integration

Monitors dry contact input devices

Controls external devices via relay outputs

Two-way communication with FACP

Real-time status reporting

Programmable input/output logic

Supervised wiring monitoring

Automatic configuration

Diagnostic capabilities

Product Features

Input Capabilities
  • 2 Style B (Class B) input circuits
  • Monitors dry contact devices
  • Supervised wiring with EOL resistors
  • Open/short circuit detection
  • Ground fault monitoring
Output Capabilities
  • 2 Form C relay outputs
  • 2A @ 30VDC rating
  • 0.5A @ 120VAC rating
  • Normally open/normally closed contacts
  • LED status indication for each output
Communication Features
  • Proprietary MAP communication protocol
  • Programmable address (1-159)
  • Real-time status reporting
  • Two-way communication with FACP
  • Automatic device recognition
Diagnostic Features
  • LED indicators for power, comm, I/O status
  • Input circuit fault detection
  • Output relay status monitoring
  • Communication fault detection
  • Power supply monitoring
Versatile Application: The FW2821 I/O Module can be configured for various control sequences, including stairwell pressurization control, elevator recall, smoke control system interface, and general purpose monitoring/control applications.

Installation & Configuration

DIN Rail Mount
Standard 35mm DIN rail mounting
Panel Mount
Direct panel mounting option
Enclosure Mount
Mount within system enclosures
Installation Guidelines
  • Mount in dry, protected location
  • Ensure proper ventilation around module
  • Follow NEC and local electrical codes
  • Use proper cable strain relief
  • Maintain minimum 2" clearance around unit
Wiring Requirements
Power Wiring

18-22 AWG for 15-32VDC power from FACP or separate supply.

Data Wiring

Twisted pair for MAP communication (18-22 AWG).

Field Wiring

12-22 AWG for input/output circuits based on load.

Configuration Steps
  1. Mount the I/O Module on DIN rail or panel
  2. Connect power supply (15-32VDC)
  3. Connect data communication cables to FACP
  4. Connect input circuits to monitored devices with EOL resistors
  5. Connect output relays to controlled devices
  6. Power up and assign module address via FACP programming
  7. Configure input/output logic as required
  8. Test all input monitoring and output control functions

Compatibility & Applications

Compatible Systems
  • Maple Armor FW2000 Series
  • Maple Armor FW2100 Series
  • Maple Armor FW2200 Series
  • All Maple Armor FACP with MAP protocol
Typical Applications
  • Elevator recall control
  • Stairwell pressurization control
  • Smoke control system interface
  • HVAC system shutdown
  • Door holder release control
Application Scenarios
Commercial Buildings

Control HVAC shutdown and elevator recall during fire alarm conditions.

Healthcare Facilities

Interface with smoke control systems and monitor fire door status.

Industrial Facilities

Monitor safety switches and control emergency shutdown systems.

Benefits

Dual Function: Combines monitoring and control in one module

Code Compliance: UL Listed for regulatory requirements

Flexible: Multiple control applications

Reliable: Industrial-grade relays and components

Scalable: Expand system capabilities

Serviceable: Easy maintenance and troubleshooting