Motorola D-Shell RSM Earpiece 3.5mm UL-TIA 4950 (PMLN4620B) – Intrinsically Safe Communication Accessory

Product Overview

The Motorola D-Shell RSM Earpiece 3.5mm UL-TIA 4950 (PMLN4620B) is a specialised communication accessory designed for use with remote speaker microphones (RSMs) in hazardous and safety-critical environments. Featuring a 3.5mm connection, this earpiece integrates seamlessly with compatible Motorola RSMs, enabling clear and discreet audio transmission.

Certified to UL-TIA 4950 standards, the PMLN4620B is suitable for use in intrinsically safe environments, ensuring compliance in industries where explosive gases or hazardous conditions may be present. Its D-shell ear loop design provides a secure and comfortable fit, making it ideal for extended use in demanding operational settings.

This earpiece is an essential solution for professionals requiring safe, reliable, and hands-free communication in high-risk environments.

Key Features

• UL-TIA 4950 Certified: Approved for intrinsically safe use in hazardous environments.
• 3.5mm RSM Compatibility: Designed for connection to Motorola remote speaker microphones.
• D-Shell Ear Loop Design: Provides a secure and comfortable fit during extended use.
• Clear Audio Performance: Ensures reliable sound quality in noisy industrial environments.
• Discreet Communication: Enables private listening while using an RSM.
• Durable Construction: Built for demanding industrial and safety-critical applications.
• Lightweight Design: Minimises fatigue during long working shifts.

What Is Included

• Motorola D-shell RSM earpiece
• 3.5mm audio connector
• Integrated acoustic speaker component
• Secure ear loop fitting

System Capabilities

• Intrinsically Safe Communication: Suitable for use in hazardous and explosive environments.
• RSM Audio Integration: Enables private audio output from compatible remote speaker microphones.
• Hands-Free Operation: Allows users to communicate efficiently without holding equipment.
• Secure Fit for Active Use: D-shell design ensures stability during movement.
• Reliable Daily Performance: Designed for consistent operation in demanding environments.

Technical Specifications

• Model: PMLN4620B
• Type: D-Shell RSM Earpiece
• Connectivity: 3.5mm audio jack (RSM connection)
• Audio / Performance: Clear audio output for professional communication
• Microphone: Not applicable (uses RSM microphone)
• PTT / Controls: Not applicable (controlled via RSM)
• Construction: Lightweight, durable materials
• Compatibility: Motorola remote speaker microphones with 3.5mm jack
• Usage: Hazardous and professional environments

Approvals and Certifications

• UL-TIA 4950 Intrinsically Safe Certification
• Motorola genuine accessory
• Suitable for hazardous environments
• Designed for safety-critical communication applications

Ideal Applications

• Oil & Gas Operations: Enables safe communication in explosive environments.
• Industrial Facilities: Supports communication in hazardous working conditions.
• Utilities & Energy: Provides reliable audio in safety-critical roles.
• Emergency Services: Ensures clear communication in high-risk scenarios.
• Manufacturing: Supports secure and discreet communication on-site.

Industries and Use Cases

• Oil and Gas
• Industrial and Manufacturing
• Utilities and Energy
• Emergency Services
• Hazardous Environments
• Infrastructure

Product Benefits

The Motorola PMLN4620B provides a safe and reliable communication solution for hazardous environments. Its intrinsically safe certification ensures compliance with strict safety standards, while its D-shell design offers comfort and stability for extended use.

By enabling discreet audio through compatible RSMs, this earpiece enhances communication efficiency while maintaining safety and operational awareness in critical environments.

Setup & Compatibility

The earpiece connects directly to compatible Motorola remote speaker microphones via a 3.5mm audio jack, allowing for quick and straightforward installation without additional configuration.

It is specifically designed for use with intrinsically safe Motorola RSMs, ensuring full compatibility and safe operation in hazardous environments.

Why Choose This Product

This intrinsically safe earpiece offers a dependable solution for professionals operating in hazardous environments. Combining Motorola reliability with certified safety compliance, it ensures clear communication while maintaining strict safety standards.

Product Information

• Manufacturer: Motorola
• Model: PMLN4620B
• Category: Two-Way Radio Accessory
• Type: D-Shell RSM Earpiece
• Connectivity: 3.5mm
• Compatibility: Motorola RSMs with 3.5mm jack
• Usage: Hazardous and professional environments
• Warranty: Typically 12 months