HONEYWELL 772481 | IQ8Control C Basic Interface Board

🔥 Product Introduction

The HONEYWELL 772481 is an ESSER by Honeywell basic interface board for the IQ8Control C fire alarm control panel. Manufacturer documentation identifies part number 772481 specifically as the Basic Module for IQ8Control C, while 772482 is the corresponding module for IQ8Control M. The board provides system-level connections for power, communication, peripheral modules, batteries, printer/serial interfaces, and expansion modules. It can also be used as a replacement module in System 8000 fire alarm control equipment when the specified compatible power supply module is installed.

HONEYWELL 772481

📋 Product Datasheet

Parameter	Value
Brand	HONEYWELL / ESSER
Model	772481
Series	IQ8Control / System 8000
Product Name	Basic Interface Board / Basic Module
Application	Fire Alarm Control Panel
Country of Origin	Not specified in available documentation
Product Status	New
Dimensions	Board dimensions not specified in available documentation
Weight	Not specified
Power	Internally supplied through the compatible power supply module

The 772481 is specified for IQ8Control C, while 772482 is specified for IQ8Control M. Documentation states that the board is compatible with power supply module 802426 from Index G or higher.

🔧 Troubleshooting & Common Problems

• Panel does not start: Check the compatible power supply module, battery connections, fuses, and board connections.

• Communication fault: Inspect the RS485 or TTY interface wiring, terminal connections, and connected peripheral equipment.

• Peripheral module not recognized: Check the micro-module connection and the relevant system connector for correct seating and configuration.

• Battery fault: Inspect battery wiring and the associated battery fuses. The board provides dedicated battery connections and monitoring functions.

• System replacement problem: Confirm that the replacement board is 772481 for IQ8Control C rather than 772482 for IQ8Control M.

⚠️ Safety Precautions

• Disconnect mains and emergency power before removing or installing the board.

• Prevent voltage and signal cables from moving into contact with SELV signal wiring.

• Do not apply AC voltage to relay contacts on the IQ8Control basic module. The technical documentation specifically prohibits switching external AC voltage through these relay contacts.

• Verify the panel nameplate and applicable power-supply configuration before energizing the system.

• Installation and servicing of fire alarm equipment should be performed by qualified personnel according to applicable regulations and manufacturer procedures.

📰 Product News & Technical Information

The 772481 remains documented as the Basic Module IQ8Control C in installation documentation for the IQ8Control C/M fire alarm control panel. The module provides interfaces including RS485, TTY, printer, MMI, USB, battery connections, micro-module connections, and system expansion connectors.

For System 8000 applications, the basic module can be used as a replacement module when paired with the required 802426 power supply module, Index G or higher. The system documentation also identifies different loop-voltage configurations for esserbus and esserbus-PLus systems.

❓ Common Questions & Answers

Q: What is Honeywell 772481?
A: It is the Basic Module / interface board used with the ESSER by Honeywell IQ8Control C fire alarm control panel.

Q: Is 772481 the same as 772482?
A: No. 772481 is specified for IQ8Control C, while 772482 is specified for IQ8Control M.

Q: What power supply is compatible with 772481?
A: Documentation specifies power supply module 802426 from Index G or higher for IQ8Control C/M applications.

Q: Can 772481 be used in System 8000 equipment?
A: Yes. The documentation states that the basic module can be used as a replacement module for System 8000 when the required power supply configuration is used.

Q: What communication interfaces are available?
A: The documented board configuration includes TTY and RS485 interfaces, along with other system and peripheral connections.

Q: Is 772481 a complete fire alarm control panel?
A: No. It is a basic module within the control-panel architecture and requires the appropriate power supply and other system modules for a complete installation.

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