LGB5028A-R2 - Network switch Black Box - Free user manual and instructions
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| Product Type | Network Switch |
| Model | LGB5028A-R2 |
| Brand | Black Box |
| Ports | 28 ports (24 Gigabit Ethernet + 4 SFP+ uplinks) |
| Switching Capacity | 128 Gbps |
| Forwarding Rate | 95.2 Mpps |
| Form Factor | 1U Rackmountable |
| Dimensions (W x D x H) | 17.3 x 10.6 x 1.7 inches (440 x 270 x 44 mm) |
| Weight | 6.2 lbs (2.8 kg) |
| Power Supply | Internal, AC 100-240V, 50-60Hz |
| Power Consumption | 30W (max) |
| Management | Web GUI, CLI, SNMP, Telnet, SSH |
| VLAN Support | 802.1Q VLAN (up to 4K VLANs) |
| Layer 2 Features | STP, RSTP, MSTP, Link Aggregation, IGMP Snooping |
| Layer 3 Features | Static Routing, RIP, OSPF |
| Security | 802.1X, ACL, Port Security, DHCP Snooping |
| Cooling | 2 x built-in fans, airflow front-to-back |
| Operating Temperature | 32°F to 122°F (0°C to 50°C) |
| Operating Humidity | 10% to 90% non-condensing |
| Maintenance & Cleaning | Clean with a soft dry cloth; do not use liquids or aerosols. Ensure vents are free from dust. |
| Spare Parts & Repairability | Power supply and fan modules are replaceable. Contact Black Box support for spare parts. |
| Compliance | FCC Class A, CE, RoHS |
Frequently Asked Questions - LGB5028A-R2 Black Box
How do I reset the LGB5028A-R2 to factory defaults?
Press and hold the reset button on the front panel for 10 seconds using a paperclip until the system LED blinks. The switch will reboot with factory settings. All configurations will be lost.
What is the default IP address and login credentials?
The default IP address is 192.168.1.1. Username: admin, Password: admin. Change these upon initial setup.
How can I update the firmware?
Download the latest firmware from the Black Box support website. Access the web GUI, go to System > Firmware Upgrade, select the file, and click Upgrade. Do not power off during update.
Does this switch support Power over Ethernet (PoE)?
No, the LGB5028A-R2 is a non-PoE switch. It does not provide power to connected devices. Use separate power sources for PoE devices.
How do I configure VLANs on this switch?
Access the web GUI, go to VLAN > 802.1Q VLAN. Create VLANs and assign tagged or untagged ports. Apply changes and save the configuration.
What should I do if the switch is not powering on?
Check the power cable and ensure it is firmly connected to both the switch and a working outlet. Verify the power supply LED on the switch. If still off, try a different power cord or contact support.
How do I enable SSH access for secure management?
In the web GUI, go to System > Management > SSH. Enable SSH and set the port (default 22). Generate or upload an SSH key if required. Apply settings.
Can I stack multiple LGB5028A-R2 switches?
No, this model does not support physical stacking. However, you can manage multiple switches via SNMP or use link aggregation for redundancy.
What type of SFP modules are compatible?
The switch supports standard SFP+ modules for 1G and 10G connectivity. Use compatible Black Box or generic SFP modules that meet IEEE standards.
How do I clear the port statistics?
In the web GUI, navigate to Monitoring > Port Statistics. Click the 'Clear' button at the top of the table to reset all counters.
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