Motorola MBLN1285C

MCC Series HSJB Assembly-Out

Professional Headset Jack Integration for Dispatch Console Systems

The Motorola MBLN1285C (also known as the B1913A) is a mission-critical Headset Jack Box (HSJB) assembly designed specifically for the Motorola MCC Series dispatch consoles. This robust interface module allows dispatchers to connect professional-grade headsets directly to their console environment, ensuring high-fidelity audio and reliable PTT (Push-To-Talk) functionality. As an "Assembly-Out" component, it is engineered for external mounting on dispatch furniture or console work surfaces, providing a dedicated, accessible point for audio accessory management in high-pressure command and control centers. The Motorola MBLN1285C is the updated version of the Motorola MBLN1285B, Motorola MBLN1285A, and Motorola MBLN1285.

Built to the rigorous standards of public safety and emergency response, the Motorola MBLN1285C features a heavy-duty housing and industrial-grade internal wiring to withstand 24/7 continuous use. It manages the complex audio routing between the console software and the user's headset, maintaining low total harmonic distortion and consistent frequency response. This unit is essential for dispatchers who require hands-free operation and private audio streams while managing multiple talkgroups across ASTRO 25 and other mission-critical networks.

Key Features & Benefits

Dedicated Console Interface: Provides a professional-grade connection point specifically tuned for MCC 7500 and MCC 5500 series dispatch consoles.
Rugged External Housing: The "Assembly-Out" design is built for external surface mounting, ensuring the jack remains secure and accessible during high-activity shifts.
Superior Audio Fidelity: Optimized to maintain a flat frequency response (300–3400 Hz) and minimal distortion for maximum voice intelligibility.
Standardized Connection: Compatible with a wide range of mission-critical headsets, supporting both receive-only and full-duplex communication.
Industrial Durability: Engineered for the high-duty cycles of emergency dispatch centers, significantly reducing wear and tear on the primary console hardware.
Flexible Installation: Includes necessary cabling for integration with Audio Interface Modules (AIM) or direct console connectivity.

Specifications

Brand: Motorola Solutions
Model Number: MBLN1285C (Legacy B1913A)
Frequency Response: 300–3400 Hz
Total Harmonic Distortion: <1.0%
Dimensions: 1.6 x 5 x 6 inches (H x W x D)
Weight: 1.2 lbs (0.5 kg)
Cable Length: 12 feet (Total)

Compatibility

MCC7500

MCC7500E

Frequently Asked Questions

What is the difference between "Assembly-Out" and internal versions? The "Assembly-Out" (MBLN1285C) is housed in its own chassis for external mounting on or under a desk, whereas internal versions are designed to be integrated directly into a console panel or rack.
Does this box support dual headsets for training? While this specific assembly provides a primary connection, the MCC console system can support multiple jack boxes via the Audio Interface Module (AIM) for supervisor/trainee configurations.
Is this a USB or analog device? This is an analog interface assembly designed to connect to the console’s dedicated audio hardware. For modern IP-based consoles, it typically interfaces through an Audio Interface Module (AIM).

Warranty

1-year manufacturer's warranty.