Black Box LGB1100 Series Gigabit Ethernet Managed Switch

Overview

The Black Box LGB1126A-R2 is a Gigabit Ethernet managed switch designed to provide reliable, high-speed network connectivity for business environments. It features twenty-four RJ45 ports supporting 10, 100, and 1000 Mbps speeds, along with two dual-media ports that accept either copper or fiber connections via SFP modules. This combination allows seamless integration of legacy devices and modern gigabit clients, making it suitable for office, campus, or industrial networks that require flexible and efficient traffic management.

Key features

• Twenty-four auto-negotiating RJ45 ports that support multiple speeds to accommodate a variety of network devices.
• Two dual-media ports offering the choice between copper or fiber uplinks for extended reach and direct server connections.
• Comprehensive management options including web-based interface, command line, SNMP, and RMON for easy network administration.
• Support for up to 4000 VLANs enabling detailed traffic segmentation and improved network security.
• Advanced Quality of Service settings to prioritize voice and video traffic, ensuring smooth communication and streaming.
• IGMP snooping to efficiently manage multicast traffic by limiting streams to relevant ports.
• Energy-efficient design compliant with IEEE 802.3az, reducing power consumption during low traffic periods.
• Compact, rack-mountable chassis with an internal power supply that fits standard 19-inch racks, saving space in wiring closets.

Key specs

• Ports: 24 RJ45 ports (10/100/1000 Mbps), 2 dual-media ports (RJ45 or SFP)
• VLAN support: Up to 4000 virtual LANs
• Power supply: Internal
• Dimensions: 1.7 × 17.4 × 8.3 inches
• Weight: 5.5 pounds
• Energy efficiency: IEEE 802.3az compliant
• Jumbo frame support: Up to 9 KB
• Management protocols: SNMP, RMON, command line, web interface

Connectivity and compatibility

This switch supports a wide range of network devices through its versatile port configuration. The RJ45 ports accommodate standard copper Ethernet cables for 10, 100, and 1000 Mbps connections, while the dual-media ports allow for fiber optic uplinks using SFP modules. This flexibility makes it easy to integrate with existing infrastructure and expand network reach without replacing cabling. It works well with IP phones, surveillance cameras, servers, and other networked equipment that require stable and segmented traffic flows.

Performance and reliability

The LGB1126A-R2 maintains line-rate throughput on all ports thanks to its non-blocking architecture, ensuring consistent data transfer speeds even under heavy load. Jumbo frame support up to nine kilobytes improves efficiency for large data packets, which benefits applications like video streaming and large file transfers. The switch’s energy-saving features reduce operational costs without compromising responsiveness, making it a practical choice for businesses focused on both performance and sustainability.

Ideal uses and environments

This managed switch is well suited to environments where a mix of legacy and modern devices coexist, such as offices upgrading their networks or campuses expanding connectivity. It supports detailed traffic control and security policies, making it a strong option for organizations that need to segment network traffic and prioritize critical applications like voice and video. Its compact rack-mount design fits neatly into crowded wiring closets, supporting clean and organized network installations.