Digital Public Address System

Multi-zone digital paging with centralized exchange, programmable control stations, and real-time zone monitoring — purpose-built for industrial facilities requiring reliable, structured communication.

Digital PA System Architecture

Structured multi-zone paging through a centralized exchange for reliable industrial communication with real-time monitoring.

Central Exchange

Central Exchange

BNA 8000 manages 5 paging zones and 25 field call stations with rack-mountable design for control room installation.

Zone Monitoring

Zone Monitoring

BNA 7000 provides real-time speaker line supervision with fault detection and instant alerting on line failures.

Programmable Control

Programmable Control

BNA 4000 master station offers 40 keys for instant zone selection, priority override, and live announcements.

Distribution Frame

Why Digital Architecture?

Structured multi-zone architecture for organized communication
Centralized control with override capabilities for emergencies
Real-time line supervision and automatic fault detection
Support for 25+ field call stations and extension phones
Reliable analog transmission for predictable performance
Easy integration with existing switchboard systems

Digital PA System Products

Complete product range for digital PA deployments with reliable performance.

master control station
BNA 4000

master control station

Master control station. Master control station with gooseneck microphone, 40 programmable keys.

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control box for master control station
BNA 4000/10

control box for master control station

Control box for master control station

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power amplifier
BNA 500W

power amplifier

BNA Booster Amplifier for commercial, industrial and security PA applications

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desktop handset station
BNA 5200

desktop handset station

Desktop handset station. Desktop mounted PA handset.

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BNA 5200/10

control box for desktop handset station

Control box for desktop handset station

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weatherproof canopy for field station
BNA 6200/10

weatherproof canopy for field station

Outdoor weatherproof FRP canopy (250W x 250D x 660H) with handle, magnetic lock and mounting accessories for field call stations. FRP canopy with mounting accessories.

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indoor/outdoor flame proof field call station
BNA 6400

indoor/outdoor flame proof field call station

The Field call stations are Flame Proof type with protection against direct rain, ingress of dust and moisture conforming to IP-65 degree of protection. Compliance to Gas Group Zone-1 & 2, Group-IIC, T6, CMRI Approved. Flame proof Wall Mount Field Station provides reliable industrial communications in environment where all call or all page and selective calling communication are required.

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monitoring control unit
BNA 7000

monitoring control unit

Monitoring control unit with 5 zones

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station junction box
BNA 7200

station junction box

Station junction box

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BNA 7200/10

branching junction box

Branching junction box

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loudspeaker junction box
BNA 7201

loudspeaker junction box

BNA loudspeaker is provided with a junction box - LSJB7201. The input to the LSJB's is paralleled with the inputs of other LSJB's from the Page line – 4 Way terminals of the Zone. The output is connected to output terminals of the 2-way terminal block for feeding the loudspeaker.

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flame proof junction box
BNA 7204

flame proof junction box

The Junction boxes are Flame Proof type with protection against direct rain, ingress of dust and moisture conforming to IP-65 degree of protection. Compliance to Gas Group Zone-1 & 2, Group-IIC, T6, CMRI Approved. The Flame Proof Junction Box consists of a Krone module to manage the wiring of signal cables between the Rack and field call stations.

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10 pair distribution box
BNA 7204/10

10 pair distribution box

It is a signal distribution frame or cable rack used in telephony to interconnect and manage telecommunication wiring between itself and any number of intermediate distribution frames and cabling from the telephony network it supports. Krone connectors of the MDF/ SDF depend on the no. of telephone set connected.

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100 pair distribution box
BNA 7204/100

100 pair distribution box

100-pair main distribution box with Krone connectors

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power distribution box
BNA 7300

power distribution box

BNA Power Distribution box has facility to create multiple power lines. 1 input power and Minimum 5 power output loops can be created. MCB is provided for extra protection. Enclosure material is industrial grade LM-6 having ingress protection IP-65.

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indoor/outdoor horn type speaker
BNA 7301

indoor/outdoor horn type speaker

Weather Proof horn speaker for Industrial, Commercial, Security Applications. BNA high quality, weather proof horn speakers are compact, light weight, rugged and molded in tough ABS plastic. The specifications and construction of these are similar to the low impedance horn speakers. These models have been provided with 100V line matching transformers with multiple taps / impedance at the rear of the sealed assembly. These 100V models are ideal for installations where long speaker cables are used to avoid power loss in the cables. IP-65 is provided against foreign particles such as dust and jets of water, thus making them ideal for outdoor use.

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indoor cone type speaker
BNA 7302

indoor cone type speaker

BNA's industrial speaker units are designed to provide optimum performance in industrial applications. These indoor cone speakers are used in Power/ Steel / Petrochemical and process plants with high ambient noise, corrosive environments.

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BNA 7305/15

indoor box speaker

Indoor box speaker

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BNA 8000

pa central exchange

PA system central exchange for 5 paging zones and 25 field call stations, rack mountable

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BNA 8000/5

pa panel rack

36U PA panel rack with PDU MCB shelves blanking plates and internal wiring

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digital master control station
BNA 8100

digital master control station

The Digital Master Control Station (DFS-8100) is designed to facilitate both private and public communication — telephonic conversation and paging announcements — from a centralized location within the plant. The station, supplemented by the multifunction digital controller, carries out various communication and control functions through dedicated programmable keys and operator controls.

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indoor/outdoor wall mounted field call station
BNA 8200

indoor/outdoor wall mounted field call station

The handset stations essentially consist of a handset with a noise canceling microphone, a keypad, a pre-amplifier, a telephone card, an interconnection card, station busy status indicator, a call indicating LED and ringer. Designed for indoor and outdoor wall / column mounting in industrial environments.

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BNA 8300

desktop call station

Desktop call station with keypad in ABS enclosure

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BNA EI-4104

epabx interface

EPABX interface with 4 ports LAN WAN connectivity rack mount

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pa panel rack
BNA 8000/5

pa panel rack

36U PA panel rack with PDU MCB shelves blanking plates and internal wiring

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42U rack
BNA 42U-RACK

42U rack

Heavy-duty 42U server and equipment rack enclosure for mounting PA system controllers, amplifiers, and associated network/telephony equipment in centralized equipment rooms.

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Trusted Across Industries

Digital PA systems are the backbone of communication in demanding industrial environments

Petrochemical Plants

Steel Mills & Foundries

Textile Manufacturing

Food Processing Facilities

Pharmaceutical Plants

Chemical Refineries

Industrial Complexes

Manufacturing Campuses

Need a Reliable Digital PA System?

Our engineers will customize a solution for your facility's exact requirements

Digital PA System — Scenario Q&A

Real-world scenarios answered by our pre-sales engineering team.