Black Box CAT5e Shielded Coupler with Dual RJ-45 Jacks

Overview

The Black Box FM508-R2 is a CAT5e shielded coupler designed to connect two CAT5e patch cables quickly and securely. It features two RJ-45 female jacks wired straight through, supporting both T568A and T568B wiring standards. This makes it a versatile component for extending network cables while maintaining signal integrity in environments prone to electromagnetic interference.

Its shielded design helps reduce signal disruption caused by nearby electronic devices, ensuring stable data transmission in offices, data centers, or industrial settings. The coupler’s durable silver finish provides protection against physical wear, making it suitable for both temporary setups and permanent installations.

Key features

• CAT5e shielded construction that minimizes electromagnetic interference for consistent network performance
• Two RJ-45 female jacks wired straight through to maintain proper signal flow and compatibility with common wiring standards
• Supports both T568A and T568B wiring schemes, allowing seamless integration into existing network infrastructures
• Durable silver finish that protects the coupler from physical damage and extends its service life
• Compact design that fits easily into tight spaces without compromising cable management

Key specs

• Category: CAT5e shielded coupler
• Connector type: Dual RJ-45 (8-wire) female jacks
• Wiring standard compatibility: T568A and T568B
• Wiring configuration: Straight-pinned (in-line wiring)
• Finish: Durable silver coating

Connectivity and compatibility

This coupler is designed to join two CAT5e patch cables, making it ideal for extending Ethernet connections without signal loss. Its compatibility with both T568A and T568B wiring standards ensures it works with most network cables and devices, including switches, routers, and patch panels. The shielded design is particularly beneficial in environments with high electronic noise, helping maintain reliable data transfer.

Ideal uses and environments

The Black Box FM508-R2 fits well in office networks, data centers, and industrial locations where cable runs need to be extended without compromising performance. It is a practical choice for IT professionals who require a simple, effective way to connect cables while protecting against interference. Its robust build also makes it suitable for both temporary setups during network maintenance and permanent installations in demanding environments.