Ascom d83 Messenger EX, ATEX DH8-ABAB

Ascom d83 Messenger EX, ATEX DH8-ABAB

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Manufacturer Part Number: DH8-ABAB

Ascom d83 Messenger EX, ATEX

Ascom Professional Intrinsically Safe DECT Handset – Heavy-Duty d83 Messenger EX Wireless Terminal with Explosion Protection and Advanced Text Communication for Hazardous Areas (Model: Ascom d83 Messenger EX / Part Number: DH8-ABAB / IC: 3724B-DH8 / ATEX / UKEX / IECEx / CSA Classified)

The Ascom d83 Messenger EX DH8-ABAB is a highly advanced, intrinsically safe enterprise-grade DECT wireless handset engineered for intensive daily deployment and complex workflows inside explosive and hazardous operating arenas. Where standard mobile communication tools present severe safety risks, this ultra-robust hardware infrastructure component guarantees absolute operational integrity through its strict global certifications for zones containing flammable gases, vapors, or dust networks. The core evolutionary asset of this Messenger EX variant is the seamless combination of certified explosion-proof mechanics and advanced text queuing architectures right on the screen. The chassis features an industrial-strength layout certified to IP65 ingress protection standards and is easy to clean. Built for safety critical industrial data routing, it provides IT departments, safety officers, and plant engineers with a deployable system node to maintain absolute fleet communication and automated text dispatches across the corporate DECT topology.

The technical foundation of this handset utility is defined by a premium audio architecture featuring Wideband voice tracking and an integrated duplex loudspeaking function, securing clean verbal data exchanges even inside loud manufacturing areas and refinery sectors. Exceptional real-world operational comfort is sustained via a dual-microphone matrix driven by active background noise cancellation, which filters structural background din out of the transmission line, complemented by an express data channel for mission-critical enterprise alerts. A key functional asset of this professional device compared to standard retail consumer products is its enhanced DECT security implementation (Step A and Step B compliance following ETSI frameworks), shielding vital corporate communication from illicit interception vectors. Equipped with native Push-to-Talk (PTT), interactive messaging acknowledgements, color messaging, an automated messaging queue, a high-contrast 2.4-inch TFT color matrix, Bluetooth 5.1, and programmable softkeys, the terminal is delivered as an implementation-ready wireless handset.

Key Features and Benefits

• Certified Explosion Protection (EX): Full intrinsic safety compliance following ATEX, UKEX, IECEx, and CSA frameworks for uncompromising deployment in dangerous, explosive atmospheres.
• Advanced Mobile Messaging: Engineered for interactive data flows, color-coded text prioritization, queue monitoring, and automatic message acknowledgements directly inside the hazard zone.
• Native Push-to-Talk Execution: Enables instant walkie-talkie functionality across dedicated workgroups for rapid internal adjustments.
• High-Fidelity Wideband Audio: Yields superior voice rendering and uncompromised acoustic clarity through an extended frequency range.
• Dual-Microphone Noise Attenuation: Actively subtracts mechanical plant noise or machine room chatter to deliver a clean acoustic profile.
• Native Bluetooth 5.1 Connectivity: Facilitates seamless wireless matching with approved wireless EX headsets to secure ergonomic, hands-free work operations.

Technical Specifications

• Manufacturer: Ascom (Sweden) AB
• Product Name: Ascom d83 Messenger EX
• Part Number / Model: DH8-ABAB / SKU Variant
• Regulatory Marking: ATEX / UKEX / IECEx / CSA certified / IC: 3724B-DH8
• Ingress Protection: IP65 / IP54 rated for EX environments
• Display Profile: 2.4 inch (40 x 50 mm) TFT multi-color screen, 240 x 320 pixels, featuring white LED backlighting
• Radio Topology: GAP and CAP compliant DECT handset with automated protocol detection (EU / US environments)
• Frequency Range: 1880–1900 MHz (Europe) / 1920–1930 MHz (US) including localized tiers for LA / BR / TH
• Hardware Interfaces: Bluetooth 5.1 (Headset / Handsfree profiles) / Screw-enforced 3.5 mm audio jack for EX headsets / Multi-purpose USB connector
• Voice Codecs: G.722.2 / G.726
• Battery Cell Type: Removable intrinsically safe EX Lithium-Ion battery pack (replacement permitted outside hazardous zones only)
• Operational Battery Benchmarks: Talk time up to 18 h (Bluetooth disabled) / up to 12 h (using BT headset) / Standby up to 120 h
• Physical Dimensions: 150 x 64 x 23 mm
• Unit Weight: 175 g (complete with battery cell and standard hinge clip)
• Operating Temperature: -10 °C to +55 °C (+14 °F to +131 °F)
• Condition: Brand New / Genuine

Package Contents

• 1x Ascom d83 Messenger EX Handset (Model: DH8-ABAB)
• 1x Intrinsically Safe Lithium-Ion EX Battery Pack
• 1x Standard Hinge-Type Belt Clip
• 1x Quick installation manual / Regulatory tracking sheet / EX safety environment manual