Black Box LGB5128A-R2 SFP Gigabit Ethernet Layer 2 Managed Switch, 28 Ports

Black Box LGB5128A-R2 Gigabit Ethernet Managed Switch, (20) SFP, (4) Dual-Media SFP, (4) SFP+, (1) DB9 Console
Model: LGB5128A-R2
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Black Box LGB5128A-R2 Gigabit Managed Switch, 20 SFP Ports, 4 RJ45/SFP Ports, 4 SFP+ Slots

The LGB5128A-R2 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.

It 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. 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.

The LGB5128A-R2 offers extensive Quality of Service support including prioritization, classification, scheduling, rate limitations, and more. The switch also supports eight hardware queues.

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

Key Features

  • Provides twenty 100/1000-Mbps SFP fiber ports, four dual-media 100/1000-Mbps RJ45/SFP ports, and four 1/10-Gbps SFP+ fiber ports
  • 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
  • 1 Year Double Diamond™ Warranty (Standard) included. Extended warranty available. Contact Westward Sales.
Technology
CategoryEthernet Switch
Total Ports28
Ethernet Ports20 Gigabit Ethernet
Fiber Ports4 SFP, 4 combo
StandardsIEEE 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
FunctionalityEthernet OAM, CFM, Sync-E Ethernet
Transfer Rate95.23-mpps; 128-Gbps
Jumbo Frame SupportUp to 9 KB
MAC Table SizeUp to 32 KB
Network Management
Network RedundancyStandard, Rapid, and Multiple Spanning Tree; IGMP snopping; IGMP Proxy, MLD snooping; LLDP; LLDP-MED
VLAN (IEEE 802.1Q)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
QoS8 hardware priority queues; Scheduling with strict priority and weighted round robin; Classification; VLAN priority-based; Rate limiting; DSCP; IPv6 applications
ProtocolsLink Aggregation Control Protocol (LACP IEEE 802.3ad; Up to 14 groups; Up to 8 ports per group
Power
Rated Power100-240 VAC, 50-60 Hz internal, universal power supply; -48 VDC dual power input
Ratings
Operating Temperature32 to 140° F (0 to 60°C)
Storage Temperature-4 to 158° F (-20 to 70°C)
Humidity10 to 90% relative, non-condensing
CertificationsCE, FCC Part 15 Class A, RoHS