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Chapter 2: Overview

Figure 2-2. Side panel of the switch (fan location).

2.4 Switch Architecture

The switch transports multiple packets at wire-speed and low latency on all ports simultaneously. It operates in full-duplex mode 
on all ports to effectively double the bandwidth of each connection.

This switch uses store-and-forward technology to ensure maximum data integrity. With this technology, the entire packet must be 
received into a buffer and checked for validity before being forwarded. This prevents errors from being propagated throughout 
the network.

2.5 Network Management Options

You can manage the switch over the network with a Web browser or Telnet application. Its built-in network management agent 
helps you manage NMP or RMON (Groups 1, 2, 3, 9) protocols.

NOTE:  For a detailed description of the management features, refer to the user’s manual. 

To download the user manual, 

visit 

www.blackbox.com and enter LGB5128A in the search bar, then download the user’s manual, or download the user’s 
manual from ftp://ftp.blackbox.com/anonymous/manuals/L/LGB5128A_USER_rev1.pdf.

2.6 Operation of Web-based Management

The default values of the LGB5128A are listed below:

IP address: 192.168.1.1

Subnet mask: 255.255.255.0

Default gateway: 192.168.1.254

User name: admin

Password: (blank)

First, configure your device’s Ethernet interface to be in the same subnet as the LGB5128A switch. Then, you can browse  
to the LGB5128A. For example, if you type http://192.168.1.1, it will show the login screen and ask you to input a username  
and password to login and authorize access to the switch.

The default username is “admin,” and the default password is blank. The first time you access the switch, enter the default  
username. At the password prompt, simply press the enter key. Next, click the “Login” button.

Содержание LGB5128A

Страница 1: ...Managed Switch Eco Quick Start Guide LGB5128A Order toll free in the U S Call 877 877 BBOX outside U S call 724 746 5500 FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 7...

Страница 2: ...are used throughout this guide to show information NOTE Emphasizes important information or calls your attention to related features or instructions WARNING Alerts you to a potential hazard that could...

Страница 3: ...compliance could void the user s authority to operate the equipment This digital apparatus does not exceed the Class A limits for radio noise emis sion from digital apparatus set out in the Radio Inte...

Страница 4: ...tween the outdoor device and this device NOTE The switch is an indoor device if it will be used in outdoor environment or connects with some outdoor device use a lightning arrester to protect the swit...

Страница 5: ...n el flujo de aire por los orificios de ventilaci n 10 El equipo el ctrico deber ser situado fuera del alcance de fuentes de calor como radiadores registros de calor estufas u otros aparatos incluyend...

Страница 6: ...iver Slots 11 3 3 Port and System Status LEDs 11 3 4 Power Supply Sockets 12 4 Installing the Switch 13 4 1 Selecting a Site 13 4 2 Ethernet Cabling 13 4 3 Equipment Checklist 14 4 4 Mounting 14 4 4 1...

Страница 7: ...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 T...

Страница 8: ...hernet Twisted pair Copper IEEE 802 3u 100BASE TX Ethernet Twisted pair Copper IEEE 802 3ab 1000BASE TX Ethernet Twisted pair Copper IEEE 802 3z 1000BASE X Ethernet IEEE 802 3ae 10GBASE SR ER Ethernet...

Страница 9: ...data voice security and wireless technologies It s easy to deploy and configure providing stable and quality performance network services 2 2 What s Included Your package should contain the following...

Страница 10: ...For a detailed description of the management features refer to the user s manual To download the user manual visit www blackbox com and enter LGB5128A in the search bar then download the user s manual...

Страница 11: ...ckbone uplink 3 3 Port and System Status LEDs The switch includes a display panel for system and port LEDs that simplify installation and network troubleshooting The LEDs located on the left hand side...

Страница 12: ...Amber Blinks when system is booting Lights when system is coming up ALARM Red Normally off only system error will turn the light on 3 4 Power Supply Sockets There are dual power inputs on the front pa...

Страница 13: ...mitters or any other electrical interference Make sure that the switch is connected to a separate grounded power outlet 4 2 Ethernet Cabling To ensure proper operation when installing the switch into...

Страница 14: ...onymous manuals L LGB5128A_USER_rev1 pdf WARNING The SFP SFP modules are Class 1 laser devices Avoid direct eye exposure to the beam coming from the transmit port 4 4 Mounting The switch can be mounte...

Страница 15: ...he screws provided in the mounting accessory Figure 4 3 Attaching the brackets Step 2 Mount the device in the rack via the rackmount kit using four rackmounting screws not provided Be sure to secure t...

Страница 16: ...4 If installing multiple switches attach four adhesive feet to each one Place each device squarely on top of the one below in any order 4 5 Installing an Optional SFP Transceiver You can install or re...

Страница 17: ...ctor facing outward and the slot connector facing down NOTE SFP transceivers are keyed so they can only be installed in one orientation Step 3 Slide the SFP transceiver into the slot until it clicks i...

Страница 18: ...owered on to be sure the POWER LED is lit If not check that the power cable is correctly plugged in 4 8 Wiring Map for Serial Cable Table 4 2 Serial cable wiring NOTE The switch does not support cross...

Страница 19: ...through the cable and lead to degraded performance on the port Step 3 Connect one end of the cable to the LC port on the switch and the other end to the LC port on the other device Since LC connectors...

Страница 20: ...domain Cable Type Maximum Cable Length Connector Category 5 5e or 6 100 ohm UTP or STP 328 ft 100 m RJ 45 Maximum 1000BASE SX Gigabit fiber cable length Fiber Size Fiber Bandwidth Maximum Cable Lengt...

Страница 21: ...724 746 5500 blackbox com Page 21 NOTES...

Страница 22: ...724 746 5500 blackbox com Page 22 NOTES...

Страница 23: ...724 746 5500 blackbox com Page 23 NOTES...

Страница 24: ...ch support available in 60 seconds or less Copyright 2013 Black Box Corporation All rights reserved Black Box and the Double Diamond logo are registered trademarks of BB Technologies Inc Any third par...

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