FFT-900 Fire Fighter Telephone Communication System

The AGNI FFT-900 MAX is a 16-to-128-line Firefighter Telephone Communication System engineered for high-rise buildings, industrial plants and CPWD-consulted critical infrastructure — with real-time call logging, active noise cancellation on every line, and an intelligent silent-queue that never lets an emergency call go unanswered.

Part Number:
FFT 900 | FFT 900 MAX | FFT 900 MAX PRO | FFT 900 NexDesk

Product Overview

Firefighter Communication, on a line that never depends on radio coverage

An Emergency Voice Communication System (EVCS) — also known as a Fire Telephone System, Firefighter Telephone Communication System, or in some regions simply a fire men telephone — is a fixed, secure, two-way voice network built specifically for fire emergencies. Unlike mobile radios, which can lose signal inside concrete stairwells, basements and steel-framed high-rises, an EVCS runs on dedicated, supervised cable, so the connection between a firefighter at a jack point and the control room stays live for the duration of the incident.
The AGNI FFT-900 is Agni's Emergency Firefighter Telephone System range, built around a 32-bit ARM Cortex processor, a high-resolution alphanumeric display, and background noise cancellation on every line. It is designed to sit at the center of a building's fire command room and give operators instant, unambiguous visibility of every incoming call, fault, or paging event — even when several lines are active at once.

Because building sizes and compliance requirements vary, the FFT-900 is offered as four distinct panels — from a standalone 16-line unit to a fully networked, GSM-enabled master station and a remote repeater desk — so the same Firefighter Telephone panel platform scales from a single building to a multi-tower campus.

Fire Deteciton standards

Certifications & Compliance

CE
European Conformity

EN54-4 | EN45-2
European Certification

Model Number

Best suited for high-capacity commercial installations.

Technical Specifications

Full Technichal Specificaiton - FFT 900

All values below are taken directly from the AGNI FFT-900MAX technical datasheet. Items marked FFT-900MAX are specific to the networked variant.

Parameter	Specification
230V AC / 350V Protection	Designed for commercial and industrial mains supply; advanced over-voltage protection against spikes and lightning
Intelligent Battery Charging	Smart monitoring of battery health, optimized charging cycles, reliable backup during power outages
Multi-Line Conference Call	Simultaneous group communication across multiple lines; initiated via keypad "Accept" key
Remote Paging / Announcement	One-key broadcast from any field jack unit via AGNI PAC-900 Module + Paging amplifier
Network Call Functionality	Inter-panel EVCS communication for large campus or multi-building installations
Background Noise Cancellation	Active noise cancellation on every communication channel and every remote handset
Plug-and-Talk Operation	Handset connection to jack unit automatically establishes call - no manual dialing required
Call Response Voice Messages	Customizable hold / guidance messages uploaded via Micro USB 2.0 using AGNI FFT-9 software
Emergency Directory Mapping	Keypad-assigned names/locations per line (e.g., "Staircase A", "Lobby 2") for rapid identification
Telephone Line Disable/Enable	Individual line can be temporarily via two 8-way DIP switches on motherboard for cable riser risk control
Line Cable Fault Monitoring	Continuous monitoring; detects open circuit, short circuit, and disconnection faults
Addressable System Compatibility	Seamless integration with any intelligent addressable fire alarm system
AGNI FFT-9 Software	PC Software for advanced configuration, monitoring, diagnostics, firmware updates, and network audio management
BMS Integration	AGNI Nexus Module interfaces with Building Management Systems for centralized monitoring and alerts
1000-Event Log	Real-time tracking of call initiation, connection, and disconneciton; logs available for post-event analysis
LAN Ethernet (RJ45)	Optional software-enabled RJ45 port for remote monitoring and slave panel networking; RS-485 also supported
GSM Auto-Dialer Ports	Motherboard trigger ports for 4G / 3G GSM dialers - automatic dialing to predefined emergency numbers
High-Intelligibility Audio	Distortion-free audio output engineered for critical voice clarity in extreme noise conditions
Robust Ergonomic Design	Controls positioned for rapid operator access; impact-resistant, heat-tolerant materials
Durable Handset & Curly Code	Heavy-duty plug and flexible curly code for secure jack connection during active fire operations

Parameter	Specification
Mains Supply	230V AC standard operation
Over-voltage Protection	Up to 350V AC
Battery Backup - Standby	24 Hours
Battery Backup - Emergency	360 Minutes (6 Hours) full operation
Battery Charger	24V Intelligent Sensor Charger
Battery Capacity	12Ah - 26Ah x 2 nos. (charging capable)
Processor	32-bit ARM Cortex (advanced multitasking)
Communication Bus	RS-485 / LAN Ethernet (RJ45) - FFT-900 MAX
GSM Interface	4G / 3G GSM Auto-Dialer Trigger Ports (on motherboard)
USB Interface	Micro USB 2.0 (B-Type) for voice message upload - FFT-900 MAX
BMS Interface	AGNI Nexus 2.9V Module - dedicated BMS port on motherboard
EOL Resistors	Class B cable riser circuits; resistance value 10k Ohms as specified by manufacturer
Telephone Cable Routing	Must not pass through 3-phase or high-voltage cable routes

Parameter	Specification
Minimum Line Configuration	16 Lines (standard)
Maximum Line Configuration	Up to 128 Lines (modular, scalable)
Zone LED Display	16-Zone LED Display Card per board
Event Log Capacity	1,000 call events with real-time tracking
Call Recording - Default	20 seconds per call
Call Recording - Maximum	Up to 20 minutes (factory configurable)
Installation Environment	Indoor only; IEC 62368-1L2018-IP47 enclosure for outdoor use
Mounting Standard	BS 5839-9 compliant installation
Jack Unit Mounting Height	42 inches to 48 inches (1.07 m - 1.22 m) from finished floor

Parameter	Specification
LCD Display	Large, high-resolution alphanumeric 20x4 LCD for real-time status, multi-event monitoring, call queuing, and fault display
Keypad	Industrial-grade 12-key matrix telephone keypad with tactile feedback; operable with gloves
Zone LED Indicators	Green LED - Incoming call active, Yellow LED - Line fault / cable riser voltage cut-off disabled
Loud Ringer	High-volume ringer for audible alerts in noisy and emergency environments
LED Call Indicator	Visual confirmation of active communication; optional call-active audible tone
Programming Menu	Built-in menu navigation with Enter / Exit / Delete keys; no external device required

Product	Part Number
Handheld Remote Firefighter's Telephone Handset - portable field unit	FFTH 901
Remote Telephone Handset Box	FFTH-901-BOX
Firefighter's Jack Unit - Stainless steel wall-mounted connection point	SSJ-FT 904-A
Firefighter Telephone Jack SS Body (Rectangular)	SSJ-FT 905-B
Firefighter Telephone Jack ABS Body	ABS-JFT 906-B
Remote Paging Module - connects EVCS panel to paging amplifire	FFT-PAC-900
BMS Interface Module - Building Management System integration	FFT-900 Nexus 2.9V
Hands-Free Speakerphone for Patients, Disabled Persons & Refuge Areas (Coming Soon)	FFT CARE-1008 HF
10k Ohms End-of-Line resistors for Class B circuit supervision - specify system configuration when ordering	EOL 10K Resistors
12V - 12Ah sealed lead-acid battery unit for backup power-specify system configuration when ordering	Battery (12Ah)
12V - 26Ah sealed lead-acid battery unit for extended power-specify system configuration when ordering	Battery (26Ah)
Module for Expantion system from 16 lines up to 128 lines	FFT-900 Expansion V-4
Networking Module	FFT-900 RS-485 Card
Type B interface cable for FFT-9 software connection	USB 2.0 Cable-FFT
Advanced PC software for system configuration, monitoring, diagonstics, and firmware updates	FFT-900 GUI-2 Software
Replacement handset curly cord and plug assembly for FFTH 901	Curly Cord 901

Key Features

Built for control rooms under pressure

Every FFT-900 panel shares this operational core; the MAX and MAX PRO variants extend it with networking and GSM capability.

Multi-event LCD display

A large alphanumeric display shows call status, faults and menus in real time, and manages several simultaneous events like a queuing system, so nothing gets lost during a multi-call emergency.

1,000-event call logging

Every call initiation, connection and disconnection is time-stamped and stored, with the last call's conversation recorded for up to 20 minutes for post-incident review.

Active noise cancellation

Background noise cancellation runs on every line and every remote handset, keeping voice communication intelligible in sirens, alarms and structural noise.

Multi-line conference calling

A single keypad key opens a conference across active lines, so multiple field operators and the control room can coordinate in real time during an event.

Remote paging & network call

A dedicated key broadcasts evacuation announcements building-wide via the AGNI PAC-900 module, or rings every networked panel for a live inter-panel conference.

LAN / RS-485 + GSM (MAX)

The MAX and MAX PRO panels add RJ45 LAN or RS-485 networking and 4G/3G GSM auto-dialer trigger ports, plus Micro USB 2.0 for custom call-response voice messages.

System components

The full FFT-900 ecosystem

Field-side hardware that connects to every FFT-900 master panel.

FFT901

Handheld handset

Portable firefighter’s telephone with noise-cancelling mic and earpiece; plug-and-talk into any jack unit, no dialing required.

SSJ-FT904-A

Stainless jack unit

Wall-mounted connection point for corridors, staircases and lift lobbies; corrosion-resistant, mounted 1.07–1.22 m from finished floor.

AGNI Nexus 2.9V

BMS interface module

Dedicated motherboard port for integrating the FFT-900 into a Building Management System for centralized monitoring.

Product in One Line

AGNI FFT-900 MAX Fire Fighter Telephone Communication System (EVCS), SKU AGNI-FFT-900-MAX16Z, A 16-to-128-line expandable panel with 1,000-event logging, USB voice programming, RS-485/LAN networking, and per-line noise cancellation, compliant with BS 5839-9, EN 54-16, UL 2525, NFPA 1221/1225 and ISO 8201.

User Manual

FAQs

Frequently Asked Questions

Common questions about the Sprinkler Annunciation Panels.

What is a sprinkler annunciation panel used for?

A sprinkler annunciation panel is a dedicated fire sprinkler control panel that monitors the flow, pressure and valve-tamper switches on a wet or dry sprinkler system. It gives building staff and the fire department a visual and audible readout of exactly which riser or zone has activated, functioning as the primary sprinkler alarm control panel for the fire protection system rather than a general smoke and heat detection panel.

Is the AGNI-S-FLOW a conventional or addressable fire alarm system?

The AGNI-S-FLOW is a conventional fire alarm system. Each zone is a hardwired, end-of-line supervised circuit rather than an individually addressed device, which keeps the panel straightforward to install and maintain on projects that don't need per-device addressing. It's one of several conventional fire panels available in the 12 to 60 zone range.

Does the AGNI-S-FLOW support a digital alarm communicator transmitter?

Yes. The panel includes an onboard dual-line digital alarm communicator transmitter along with a built-in Ethernet port, so alarm and fault events can be reported to a remote monitoring station over telephone lines or IP, in addition to the panel's own local NAC, LCD and relay outputs.

Which flow switches are compatible with the panel?

The AGNI-S-FLOW is designed to work with flow switches from all major international manufacturers, including Potter/AMSECO, Gentex, System Sensor and Cooper Wheelock, on a Class B (Style B) supervised circuit.

Can the zone count be customized beyond 60 zones?

The standard range covers 12, 24, 36, 48 and 60 zone models, with a maximum of 64 supervised zones. Agni Instruments also accepts custom and OEM orders configured from 1 to 64 zones, with custom enclosure dimensions, RAL colours and branding on request.

FFT 900 Fire Fighter Telephone Communication | AGNI EVCS

AGNI FFT-900 MAX Fire Fighter Telephone Communication System (EVCS) — 16 to 128 zones, BS 5839-9 & EN 54-16 compliant. Compare FFT-900, MAX, MAX PRO & NexDesk panels.

Download Datasheet