Black Box Black Box SFP Managed Switch Eco, LGB5128A quick start Specifications, blackbox.com, Page

Chapter 1: Specifications

1.Specifications

1.1Physical Characteristics

Aggregate Bandwidth	128 Gbps for the LGB5128A switch
Buffer Architecture	1392 KB on-chip frame buffer
Network Interface	Ports 1-20: SFP connector,
	10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better)
	100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better)
	1000BASE-T: RJ-45 (100-ohm, UTP, or STP cable; Category 5, 5e, or 6);
	Maximum Cable Length: 328 ft (100 m)
	Ports 21-24: RJ-45 connector/(100/1000M) SFP;
	Ports 25-28: 1G/10G SFP+
Switching Database	32K MAC address entries
Connectors	(20) 10/100/1000Mbps SFP;
	(4) Gigabit Ethernet Combo Port TP/ (100/1000M) SFP;
	(4) (1G/10G) SFP+
Environment	Temperature Tolerance: Operating: 32 to 140° F (0 to 60° C);
	Humidity Tolerance: Operating: 5% to 90% (non-condensing)
Power	Power A: 100 to 240 VAC, 50–60 Hz;
	Power B: -36 VDC to -48 VDC
	Power Supply:
	Power A: Output: 12 VDC, 70 Watts
	Power B: Output: 12 VDC, 70 Watts
	Power Consumption: 55 Watts maximum
Dimensions	1.7"H x 17.4"W x 8.3"D (4.4 x 44.2 x 21.1 cm)
Weight	6.83 lb. (3.1 kg)
1.2 Switch Features
Forwarding Mode	Store-and-forward
Throughput	130.9 Mpps
Flow control	Full-duplex: IEEE 802.3x;
	Half-duplex: Backpressure

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