Ortronics MM20842ADJ12-W 4-post Adjustable Rack 42U

Product Description

The ORTRONICS MM20842ADJ12-W is a 4-post open-frame adjustable rack unit designed for structured cabling and network equipment installations. Standing 8 feet tall with a 42U capacity, it provides a stable, configurable mounting platform for patch panels, switches, cable managers, and other rack-mount hardware. The adjustable rail design accommodates varying equipment depths, making it a practical choice for installers working in telecommunications rooms, data closets, and network infrastructure environments where flexibility is required.

This rack is suited for commercial and enterprise network infrastructure installations where a full-height, open-frame solution is needed. The 4-post configuration supports front-and-rear mounting of equipment, allowing proper cable management and airflow. Structured cabling contractors and low-voltage technicians are the primary trades that specify and install this type of equipment in new construction and retrofit environments.

Key Features

• 42U height provides full-rack capacity for dense equipment installations
• 4-post open-frame design supports front and rear equipment mounting
• Adjustable rails accommodate varying equipment depths without modification
• 8 ft overall height suitable for standard telecommunications room layouts
• Open-frame construction promotes airflow and cable accessibility

Compatibility

Designed as an OEM-style open-frame rack compatible with standard 19-inch rack-mount equipment including patch panels, network switches, and cable management accessories.

Installation Notes

Installation is typically performed by low-voltage or structured cabling contractors following BICSI and TIA-942 guidelines for telecommunications room layout. Secure the rack to a solid floor surface and, where required by local code, anchor the top of the rack to a wall or overhead structure to prevent tipping. Power down and de-energize any adjacent active equipment before mounting or adjusting components within the rack. Review the manufacturer assembly instructions for proper rail adjustment sequence before loading equipment.