Description

The Simplex Slave Talk Back Unit Metal Enclosure (AGNI-416) is a reliable half-duplex emergency communication device designed for fire alarm control rooms and emergency communication systems. It enables controlled two-way voice communication between a field unit and the master control panel, with only one person speaking at a time. When the slave unit talk button is pressed, the master panel receives a signal from the corresponding field unit. The operator then selects the appropriate zone line and presses the talk key to activate Talk & Listen Mode. Since incoming communication cannot be heard while the user is speaking, the system uses the traditional Over Code Word protocol to indicate when communication should be handed over between users. The AGNI-416 features a rugged solid sheet metal enclosure with integrated circuit logic, making it suitable for reliable indoor installation in fire alarm and emergency communication systems. Key Features: Simplex / half-duplex emergency communication unit Designed for fire alarm control rooms and emergency communication systems Enables controlled two-way communication Slave unit talk button for initiating communication Master panel zone-line selection and Talk & Listen Mode Uses traditional Over Code Word communication protocol Rugged solid sheet metal enclosure Integrated circuit logic Designed for indoor fire alarm communication installations Suitable for emergency response and evacuation communication systems Specifications: Product Name: Simplex Slave Talk Back Unit Model: AGNI-416 Communication Type: Half-Duplex Enclosure: Solid Sheet Metal System: Fire Alarm & Emergency Communication System Operation: Talk & Listen Mode Communication Protocol: Over Code Word Installation: Indoor Installation Guideline: IS 2189 Recommended Mounting Height: 1.4 m ± 0.2 m above finished floor level Installation & Placement: As stated in the product information, the unit should be installed in accordance with IS 2189 installation guidelines. Recommended installation height: 1.4 m ± 0.2 m above finished floor level The unit should be installed in clearly visible and accessible locations, such as: Escape routes Near exits Staircase lobbies Other locations where emergency communication can be accessed quickly Applications: Suitable for: Fire Alarm Control Rooms Emergency Communication Systems Fire & Life Safety Systems Building Emergency Communication Evacuation Communication Systems Commercial Buildings Industrial Facilities Institutional Buildings Indoor Emergency Communication Installations Product Benefits: Supports coordinated emergency response Provides controlled two-way communication between field units and the master panel Allows operators to identify the corresponding zone before communication Rugged metal construction for dependable indoor installation Designed for clear and accessible emergency communication points Suitable for integration into fire alarm and emergency communication systems

Manufacturing & Industrial

Simplex Slave Talk Back Unit Metal Enclosure – AGNI-416 - Fire Alarm Emergency Communication System

5.3

Listed 8/20/2026

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