724-746-5500 | blackbox.com
Page 6
LGB1108A Quick Start Guide
724-746-5500 | blackbox.com
Chapter 1: Specifications
1 Specifications
1.1 Physical Characteristics
Aggregate Bandwidth
— 20 Gbps
Buffer Architecture
— 1392 KB on-chip frame buffer
Network Interface
— LGB1108A: Ports 1-8: RJ-45 connector, Auto MDI-X; Ports 9-10: RJ-45 connector/(100/1000M) SFP;
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);
LGB1126A: Ports 1–20: RJ-45 connector, Auto MDI-X; Ports 21–24: RJ-45 connector/(100/1000M) SFP, Ports 25–26: 100/1000M SFP,
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);
LGB1148A: Ports 1–44: RJ-45 connector, Auto MDI-X; Ports 45–48: RJ-45 connector/(100/1000M) SFP,
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)
Ports
— LGB1108A: (8) 10/100/1000 Mbps TP; (2) 100/1000 Mbps SFP Fiber/(10/100/1000 Mbps) TP dual-media ports, (1) RJ-45 console
port;
LGB1126A: (20) 10/100/1000 Mbps TP, (4) 100/1000 Mbps SFP Fiber/(10/100/1000 Mbps) TP dual-media ports, (2) 10/1000M SFP ports,
(1) RJ-45 console port;
LGB1148A: (44) 10/100/1000 Mbps TP, (4) 100/1000 Mbps SFP Fiber/(10/100/1000 Mbps) TP dual media ports, (1) DB9 console port
Switching Database
— 8K MAC address entries
Indicators
— LEDs: System: Power; TP Port: status (LINK/ACT), 10/100/1000M;
SFP Port: status (LINK/ACT/SPD), 100/1000M
Temperature Tolerance
— Operating: 32 to 104° F (0 to 40° C)
Humidity Tolerance
— Operating: 5% to 90% (non-condensing)
Power
— Input: 100–240 VAC, 50–60 Hz internal power supply, autosensing;
Consumption: 20 Watts maximum
Size
— LGB1108A: 1.7" H x 11" W x 6.5" D (4.4 x 28 x 16.6 cm);
LGB1126A: 1.75" (1U) H x 17.4"W x 8.3"D (4.4 x 44.2 x 21.1 cm);
LGB1148A: 1.75" (1U) H x 17.4"W x 11.8"D (4.4 x 44.2 x 30 cm)
Weight
— LGB1108: 2.97 lb. (1.35 kg);
LGB1126A: 5.3 lb. (2.4 kg);
LGB1148A: 9 lb. (4.1 kg)
1.2 Switch Features
Flow Control
— Full-duplex: IEEE 802.3x
Half-duplex: Backpressure
Forwarding Mode
— Store-and-forward
Throughput —
35.71 Mbps
1.3 Management Features
In-Band Management —
SSH/SSL, Telnet, SNMP, or HTTP
Out-of-Band Management —
RS-232 (RJ-45 console port)