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8-Port Gigabit Unmanaged Switch
Provides (8) 10-/100-/1000-Mbps RJ-45
ports.
Customer
Order toll-free in the U.S.: Call 877-877-BBOX (outside
Support
U.S. call 724-746-5500) • FREE technical support
Information
24 hours a day, 7 days a week: Call 877-877-2269 or fax
724-746-0746 • www.blackbox. com •
info@blackbox.com
Chapter
LGB408A-R2
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Summary of Contents for Black Box LGB408A-R2
- Page 1 Chapter LGB408A-R2 8-Port Gigabit Unmanaged Switch Provides (8) 10-/100-/1000-Mbps RJ-45 ports. Customer Order toll-free in the U.S.: Call 877-877-BBOX (outside Support U.S. call 724-746-5500) • FREE technical support Information 24 hours a day, 7 days a week: Call 877-877-2269 or fax 724-746-0746 •...
- Page 2 Trademarks Used in this Manual Trademarks Used in this Manual Black Box and the Double Diamond logo are registered trademarks of BB Technologies, Inc. Mac is a registered trademark of Apple Computer, Inc. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
- Page 3 FCC and IC RFI Statements FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio- frequency energy, and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause inter ference to radio communication.
- Page 4 NOM Statement Normas Oficiales Mexicanas (NOM) Electrical Safety Statement INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
- Page 5 NOM Statement 9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá, alfombra o superficie similar puede bloquea la ventilación, no se debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilación.
- Page 6 NOM Statement 18. Servicio por personal calificado deberá ser provisto cuando: A: El cable de poder o el contacto ha sido dañado; u B: Objectos han caído o líquido ha sido derramado dentro del aparato; o C: El aparato ha sido expuesto a la lluvia; o D: El aparato parece no operar normalmente o muestra un cambio en su desempeño;...
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Page 7: Table Of Contents
3.2 Connecting the Switch to a Switch or Hub ....13 3.3 Application Diagram ..........14 4. Operation ................16 Appendix. Troubleshooting ............. 17 A.1 Contacting Black Box ..........17 A.2 Shipping and Packaging ..........17 877-877-2269 | blackbox.com Page 7... -
Page 8: Specifications
Chapter 1: Specifications 1. Specifications Approvals — FCC Class A, CE Buffer Memory — RAM: 3.5 MB per device Filtering/Forwarding Rate — 10-Mbps ports: 14,880 pps, 100-Mbps ports: 148,800 pps, 1000-Mbps ports: 1,488,000 pps Flow Control — Full-duplex mode: IEEE 802.3x; Half-duplex mode: Backpressure JUMBO Frames —... -
Page 9: Overview
Chapter 2: Overview 2. Overview 2.1 Introduction The Switch provides eight 10-/100-/1000-Mbps RJ-45 ports. It was designed for easy installation and high performance in an environment where traffic on the network and the number of users increase continuously. With its Gigabit chip set, the 9" Gigabit Ethernet Switch can fully support the highest speed even when fully loaded and running in full-duplex mode. -
Page 10: What's Included
• 9” inch compact size, rackmountable to 10" and 19" with bracket. 2.3 What’s Included Your package should contain the following items. If anything is missing or damaged, contact Black Box Technical Support at 724-746-5500 or info@blackbox.com. • (1) 8-Port Gigabit Unmanaged Switch • (1) AC power cord •... - Page 11 Chapter 2: Overview Table 2-1. Front panel components. Number Name Description Lights when power to Power LED the unit is on. On when port is operating at 1000 (8) 1000M Mbps. Off when port LEDs is operating at 10 or 100 Mbps.
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Page 12: Back Panel
Chapter 2: Overview 2.4.2 Back Panel Figure 2-2 shows the back panel of the switch. Table 2-2 describes its components. Figure 2-2. Back panel. Table 2-2. Back panel components. Number Name Description Insert 90–240-VAC, 3-prong 50-/60-Hz power receptacle supply cord here. Page 12 877-877-2269 | blackbox.com... -
Page 13: Installation
Use straight-through twisted-pair cable (CAT5) to connect the Switch to PCs, servers, and other network devices. See Figure 3-1. 8-Port Gigabit Unmanaged Switch (LGB408A-R2) ® Server Workstation Figure 3-1. Connecting to PCs, servers, and other network devices. 877-877-2269 | blackbox.com... -
Page 14: Connecting The Switch To A Switch Or Hub
Chapter 3: Installation 3.2 Connecting the Switch to a Switch or a Hub Use the straight-through twisted-pair cable to connect the switch to another switch or hub on the uplink port. Connected to Port 2 CATx cable on switch #1 Connected to Port 1, uplink port on switch #2 Figure 3-2. -
Page 15: Application Diagram
Chapter 3: Installations 3.3 Application Diagram 8-Port Gigabit Unmanaged Switch (LGB408A) Dual-Speed Gigabit Ethernet Switch Server PC Server Fast Ethernet Switch Workstation PC Figure 3-3. Typical application. 877-877-2269 | blackbox.com Page 15... -
Page 16: Operation
Chapter 4: Operation 4. Operation Figure 4-1 shows the LEDs on the switch’s front panel. Table 4-1 describes their functions. Figure 4-1. LEDs on front panel of switch. Table 4-1. Front panel indicators. Number LEDs Status Description (1) Power Power is on Link is running at 8 (1–8) 1000 Mbps. -
Page 17: Appendix. Troubleshooting
• Package it carefully. We recommend that you use the original container. • If you are returning the unit, make sure you include everything you received with it. Before you ship for return or repair, contact Black Box to get a Return Authorization (RA) number. 877-877-2269 | blackbox.com Page 17... - Page 18 NOTES Page 18 877-877-2269 | blackbox.com...
- Page 19 NOTES 877-877-2269 | blackbox.com Page 19...
- Page 20 Great tech support is just 60 seconds away at 724-746-5500 or blackbox.com. About Black Box Black Box provides an extensive range of networking and infrastructure products. You’ll find everything from cabinets and racks and power and surge protection products to media converters and Ethernet switches all supported by free, live 24/7 Tech support available in 60 seconds or less.
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