Chapter 3: Hardware Description

3. Hardware Description

3.1 1000BASE-T Ports

The switch has 10/100/1000BASE-T RJ-45 ports. All RJ-45 ports support automatic MDI/MDI-X operation, auto-negotiation, and IEEE 802.3x auto-negotiation of flow control, so the switch automatically selects the optimum data rate and transmission.

3.2 SFP Transceiver Slots

The switch supports Small Form Factor Pluggable (SFP) transceiver slots on ports 1 to 24. It also supports four combo interface (RJ-45/SFP) ports 21 to 24, which can each be configured as RJ-45 or SFP ports. In the default configuration, if an SFP transceiver (part numbers LFP401–LFP404, LFP411–LFP416) is installed in a slot and has a valid link on the port, the associated RJ-45 port is disabled. Ports 25 to 28 support 10GbE SFP+ transceiver (part numbers LSP421 and LSP422) slots, a high performance interface for backbone uplink.

3.3 Port and System Status LEDs

The switch includes a display panel for system and port LEDs that simplify installation and network troubleshooting. The LEDs, located on the left hand side of the front panel for easy viewing, are shown below and described in the following table.

Figure 3-1. Port status LEDs on the front panel.

Table 3-1. Port Status LEDs

LED

Color

Status

 

 

 

P1–P24 SFP Link/Act/Speed

Green/Amber

Lights when fiber connection with the remote device is good.

 

 

Blinks when any traffic is present.

 

 

Lights Green when linking to 1000 Mbps.

 

 

Lights Amber when linking to 100 Mbps.

 

 

 

P21–P24 TP Link/Act/Speed

Green/Amber

Lights Green when TP link on 10-/1000-Mbps speed.

 

 

Lights Amber when TP link on 100-Mbps speed.

 

 

Blinks when any traffic is present.

 

 

 

P25–P26 SFP+ Link/Act/Speed

Green/Amber

Lights Green when SFP+ link on 10-Gbps speed.

 

 

Lights Amber when SFP+ link on 1-Gbps speed.

 

 

Blinks when any traffic is present.

 

 

 

MGMT TP Link/Act/Speed

Green/Amber

Lights Green when TP link on 10-/1000-Mbps speed.

 

 

Lights Amber when TP link on 100-Mbps speed.

 

 

Blinks when any traffic is present.

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Black Box Black Box SFP Managed Switch Eco, LGB5128A Hardware Description 1000BASE-T Ports, SFP Transceiver Slots

LGB5128A, Black Box SFP Managed Switch Eco specifications

The Black Box LGB5128A, known for its robust design and advanced capabilities, is a standout component in the realm of network switches. Specifically, it is a managed switch that brings forth a spectrum of features tailored to enhance performance for various networking needs. Built to accommodate the demands of modern enterprises, the LGB5128A combines efficiency with scalability.

At its core, the LGB5128A is equipped with 28 ports, featuring a combination of 24 Gigabit Ethernet ports and 4 specialized SFP (Small Form-factor Pluggable) ports. This configuration allows users to enjoy flexibility in connectivity options, supporting copper and fiber connections. Its ability to seamlessly integrate into existing infrastructures makes it an ideal choice for businesses planning to expand their networks without a complete overhaul.

One of the defining features of the Black Box LGB5128A is its managed switch capabilities. Administrators can easily configure, monitor, and manage the network through a user-friendly interface. This includes web-based management, Command Line Interface (CLI), and SNMP support, providing multiple layers for network management. Advanced features such as VLAN, QoS (Quality of Service), and Link Aggregation ensure that data traffic is efficiently handled and prioritized, improving overall network performance.

The LGB5128A also emphasizes security with features like 802.1X port-based authentication, providing a robust framework to prevent unauthorized access. Moreover, it supports IGMP snooping, which optimizes multicast traffic, ensuring that bandwidth is used effectively. Another important characteristic is its redundancy support, including Rapid Spanning Tree Protocol (RSTP), which reinforces network reliability and uptime.

In terms of technological advancements, the managed switch incorporates features such as Power over Ethernet (PoE) capabilities in some models, enabling seamless power delivery to connected devices. This is particularly beneficial for powering devices like IP cameras and VoIP phones without the need for additional power sources.

Overall, the Black Box LGB5128A managed switch stands out in the networking landscape with its extensive features, security measures, and scalability options. Its blend of performance, flexibility, and management capabilities makes it an exceptional choice for businesses aiming to enhance their networking infrastructure while ensuring peak performance and security.