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 large-scale or multi-wing fire protection systems.

Custom & OEM orders accepted

Agni Instruments accepts fully customized sprinkler annunciation panel orders tailored to your specific project requirements.

1–64 zones

Configured to precisely match your floor plan and riser layout.

Custom build

Custom dimensions, RAL colours, IP ratings and mounting configurations.

White-label / co-brand

Panels built with your logo, nameplate and livery.

Region-specific

Certification support across BIS, EN, ERTL and other regional standards.

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