LGB5100 Series Gigabit Ethernet (1000-Mbps) Managed Switch

Item #: LGB5128A-R2

Gigabit Ethernet (1000-Mbps) Managed Switch – (20) SFP, (4) Dual-Media SFP, (4) SFP+, (1) DB9 Console

This layer 2 switch delivers high performance fiber connectivity, scalability, and availability for your LAN access network.


  • Pay-as-you-grow. Add SFPs when you need them to expand your network.
  • Super versatility. Add a 10-Gbps fiber link when you expand your 100/1000-Mbps copper/fiber network
  • Includes (20) 100/1000-Mbps SFP (Small Form-Factor Pluggable) fiber ports, (4) dual-media 100/1000-Mbps RJ45/SFP ports, and (4) 1/10-Gbps SFP+ fiber ports.


  • Sản phẩm đầy đủ giấy tờ CO (US, UK, Taiwan,…), CQ,…
  • Đầy đủ sản phẩm, giải pháp đáp ứng mọi nhu cầu của khách hàng, tối ưu chi phí
  • Starlinks tự hào là nhà phân phối chính thức các sản phẩm của Blackbox tại thị trường Việt Nam
Liên hệ Báo giá
  • Get advanced switching and performance capabilities found in more expensive switches.
  • Provides superior manageability, security, QoS, and performance.
  • 802.3az Energy-Efficient Ethernet saves on power costs.
  • Well suited for workgroups, office LANs, and enterprise networks carrying higher-priority traffic for powerful applications.
  • Bundle multiple ports for higher bandwidth with Link Aggregate Control Protocol aggregation.
  • Programmable QoS classification and prioritization.
  • Robust security with VLAN capabilities.
  • OAM and CFM for easy set-up and management.
  • Manage via the Web or Command-Line.
  • Supports the multi-node ring protection architecture.

This advanced, fully-manageable Layer 2 switch gives you networking versatility. It features 28 high-speed fiber ports: (4) 1-Gbps/10-Gbps SFP fiber ports, (20) 100-/1000-Mbps SFP fiber ports, and (4) dual-media 100-/1000-Mbps SFP/twisted-pair ports. This all-fiber switch gives you the flexibility to select a variety of ranges with SFP transceivers.

Advanced functions in an economical package.

This switch offers advanced switching and security features normally found in more expensive switches. You’ll get extensive management capabilities, greater bandwidth control, and QoS for switching in VoIP and other real-time, high-performance applications.

Pack up the trunk.

To provide more bandwidth to a specific application or segment, combine ports using the switch’s 802.3ad Link Aggregate Control Protocol (LACP) capabilities. With this bandwidth aggregation feature, the combined ports create a multilink trunk for load sharing. The switch supports 14 groups with 8 ports per group.

High-level service.

The switch offers extensive Quality of Service support including prioritization, classification, scheduling, rate limitations, and more. The switch also supports eight hardware queues.

Safe and secure.

Your network is safe with this switch. It also offers MAC address filtering and VLAN capabilities so you can segregate networks.

Multiple management options.

Monitor, configure, and control the switch via its RS-232 serial port, or through Ethernet using CLI or Web-based management.


The SFP Gigabit/10-Gigabit Managed Fiber Switch Eco features IEEE 802.3az energy-efficient Ethernet, which scales down power consumption during periods of low data activity. This feature adds up to energy savings of up to 50%.


For the SFP slots, order SFP modules, such as the 850-nm Multimode Gigabit SFP Module (LFP411) and 1310-nm Single-mode Gigabit SFP Module (LFP412). For information on SFP module compatibility, contact our FREE Tech Support)

Approvals CE; FCC Part 15 Class A; RoHS
Standards IEEE 802.3u/x/z/ab/ad/ae/ah/ag/az; IEEE 802.1D/p/Q/X/s/w/AB, 1588v2; ITU-T Y.1731, G.8032v2, G.8031. Sync-E
Item Specifications
Connectors (28) total; (20) SFP 100/1000-Mbps; (4) Dual Media (UTP/SFP) RJ-45/SFP 100/1000-Mbps; (4) SFP+ (1-/10-GbE); Console port: DB9
Dimensions 1.7″H x 17.4″W x 8.3″D (4.4 x 44.2 x 21.1 cm)
Indicators LEDs: Each port: Link/Act/Speed; MGMT port: Link/Act/Speed; Power: PWR AC, PWR DC, SYS, ALARM;
Weight 6.8 lb. (3.1 kg)
Physical Specifications
Carrier Ethernet Ethernet OAM, CFM, Sync-E Ethernet
Environmental Operating humidity: 10 to 90% relative, noncondensing
Jumbo Frames Up to 9 KB
MAC Addresses Up to 32K
Management Web GUI; Dual-image; SNMP; RMON; IPv4, IPv6; Port mirroring; s-Flow; HTTP/HTTPs; SSH; RADIUS; DHCP; SNTP; Telnet
Operating temperature 32 to 140° F (0 to 60°C);
Power 100-240 VAC, 50-60 Hz internal, universal power supply; -48 VDC dual power input
Protocol Standard, Rapid, and Multiple Spanning Tree; IGMP snopping; IGMP Proxy, MLD snooping; LLDP; LLDP-MED
QoS (8) hardware priority queues; Scheduling with strict priority and weighted round robin; Classification; VLAN priority-based; Rate limiting; DSCP; IPv6 applications
Storage temperature -4 to 158° F (-20 to +70°C);
Switching Capacity 95.23-mpps; 128-Gbps
Trunking Link Aggregation Control Protocol (LACP IEEE 802.3ad; Up to 14 groups; Up to 8 ports per group
VLAN Capabilities Supports up to 4K VLANs simultaneoulsy (ot of 4096 VLAN IDs); Port-based VLAN; 802.1Q tag-based VLAN; MAC-based VLAN; Management VLAN; Private VLAN Edge (PVE); Voice VLAN, Generic VLAN Registration

additional product image

DataSheet - SFP Gigabit Managed Switch Eco (LGB5124A-R2, LGB5128A-R2)

Manual - Eco Managed Enet Switch CLI Guide

Manual - SFP Gigabit Managed Switch Eco

QuickStartGuide - lgb5124a-r2_lgb5128a-r2_qig_rev3.pdf



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