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724-746-5500   |   blackbox.com 

724-746-5500   |   blackbox.com 

Page 7

LGB5028A Installation and Getting Started Guide

Table of Contents

9.   Troubleshooting .................................................................................................................................................................32 
 

9.1   Basic Troubleshooting Tips .........................................................................................................................................32 

 

9.2   Contacting Black Box .................................................................................................................................................33 

 

9.3  Shipping and Packaging .............................................................................................................................................33

10.  Power and Cooling Problems .............................................................................................................................................34 
 

10.1  Installation..................................................................................................................................................................34 

 

10.2  In-Band Access ...........................................................................................................................................................34

11.  Cables     ........................................................................................................................................................................35 
 

11.1 Twisted-Pair Cable and Pin Assignments .....................................................................................................................35 

 

11.2 10BASE-T/100BASE-TX Pin Assignments ....................................................................................................................35 

 

11.3  Straight-Through Wiring .............................................................................................................................................35 

 

11.4  Crossover Wiring ........................................................................................................................................................36 

 

11.5  1000BASE-T Pin Assignments ....................................................................................................................................36 

 

11.6  Cable Testing for Existing Category 5 Cable ..............................................................................................................37 

 

11.7  Adjusting Existing Category 5 Cabling to Run 1000BASE-F .......................................................................................37 

 

11.8  Fiber Standards ..........................................................................................................................................................37

12.  Glossary    ........................................................................................................................................................................39

Содержание LGB5028A

Страница 1: ...rts 24 or 48 4 Port Gigabit Managed Switch with SFP 10G LGB5028A LGB5052A 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 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com Customer Support Information ...

Страница 2: ... to blackbox com and click on Talk to Black Box You ll be live with one of our technical experts in less than 30 seconds Trademarks Used in this Manual Black Box and the Double Diamond logo are registered trademarks of BB Technologies Inc Intel is a registered trademark of Intel Corporation Xerox is a registered trademark of Intel Corporation Any other trademarks mentioned in this manual are ackno...

Страница 3: ...nst such interference when the equipment is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user...

Страница 4: ...os o gabinetes que impidan el flujo de aire por los orificios de ventilación 10 El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores registros de calor estufas u otros aparatos incluyendo amplificadores que producen calor 11 El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación o como se indique...

Страница 5: ...cs Dry weather conditions or walking across a carpeted floor may cause you to acquire a static electrical charge To protect your device always Touch the metal chassis of your computer to ground the static electrical charge before you pick up the circuit device Pick up the device by holding it on the left and right edges only If you need to connect an outdoor device to the switch with cable then yo...

Страница 6: ...oduction to Switching 16 4 2 Application Examples 16 5 Installing the Switch 19 5 1 Selecting a Site 19 5 2 Ethernet Cabling 19 5 3 Equipment Checklist 19 5 4 Package Includes 19 5 5 Mounting 20 5 5 1 Rackmounting 20 5 5 2 Desktop or Shelf Mounting 21 5 6 Installing an Optional SFP Transceiver 22 5 7 Connecting to a Power Source 23 5 8 Connecting to the Console Port 24 6 Operation of Web based Man...

Страница 7: ...r and Cooling Problems 34 10 1 Installation 34 10 2 In Band Access 34 11 Cables 35 11 1 Twisted Pair Cable and Pin Assignments 35 11 2 10BASE T 100BASE TX Pin Assignments 35 11 3 Straight Through Wiring 35 11 4 Crossover Wiring 36 11 5 1000BASE T Pin Assignments 36 11 6 Cable Testing for Existing Category 5 Cable 37 11 7 Adjusting Existing Category 5 Cabling to Run 1000BASE F 37 11 8 Fiber Standar...

Страница 8: ...0 Mbps twisted pair 4 100M 1G SFP combo ports 4 1G 10Gbps fiber ports LGB5052A 44 10 100 100 Mbps twisted pair 4 100M 1G SFP combo ports 4 1G 10Gbps fiber ports Switching Database 9K 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 n...

Страница 9: ... IEEE 802 3z 1000BASE X Ethernet IEEE 802 3x Flow Control Capability ANSI IEEE 802 3 Auto negotiation IEEE 802 1Q VLAN IEEE 802 1p Class of Service IEEE 802 1X Access Control IEEE 802 1D Spanning Tree IEEE 802 1w Rapid Spanning Tree IEEE 802 1s Multiple Spanning Tree IEEE 802 3ad Link Aggregation Control Protocol LACP IEEEE 802 1AB Link Layer Discovery Protocol LLDP 1 5 Compliances Compliance EN55...

Страница 10: ...ability on all ports which effectively doubles the bandwidth of each connection 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 You can also manage the switch over the network with a Web browser or...

Страница 11: ...Speed mode 2 Switch TP Port LEDs In Speed mode Link LED will light green 1000 Mbps or amber 100 Mbps In Link Act mode LED lights to show Link and blinks to show Act 3 Switch combo port LEDs In Speed mode Link LED will light green 1000 Mbps or amber 100 Mbps In Link Act mode LED lights to show Link and blinks to show Act 4 Switch SFP port LEDs Light when Link is present OFF when no link is present ...

Страница 12: ...de and Speed mode 2 Switch TP Port LEDs In Speed mode Link LED will light green 1000 Mbps or amber 100 Mbps In Link Act mode LED lights to show Link and blinks to show Act 3 Switch combo port LEDs In Speed mode Link LED will light green 1000 Mbps or amber 100 Mbps In Link Act mode LED lights to show Link and blinks to show Act 4 Switch SFP port LEDs Light when Link is present OFF when no link is p...

Страница 13: ...or information on the recommended standards for fiber optic cabling contact Black Box Technical Support at 724 746 5500 or info blackbox com Table 3 1 Supported SFP transceivers Media Standard Fiber Diameter microns Wavelength nm Maximum Distance 1000BASE SX 50 125 850 1760 feet 550 m 1000BASE SX 62 5 125 850 880 feet 275 m 1000BASE LX LHX XD ZX 9 125 1310 6 2 18 6 miles 10 30 km 1000BASE LX LHX X...

Страница 14: ...en TP link speed is 10 Mbps SFP Link Act Green Lights green when the SFP link is good Blinking Blinks when traffic is present SFP SPEED Blue Lights blue when the SFP link speed is 10 Gbps Green Lights green when SFP link speed is 1000 Mbps Table 3 3 System Status LEDs LED Condition Status System Green Lights green when the switch is powered on OFF Off when the power is off 3 4 Power Supply Socket ...

Страница 15: ...e switch is in LINK ACT mode each port s LED shows the Link or Act status When the switch is in SPEED mode each port s LED shows the link speed status using different colors Table 3 4 Mode Status LED LED Condition Status Link ACT Green Lights green when the ports are in Link ACT mode Blinking Blinks when traffic is present SPEED Blue Lights blue when the port speed is 10 Gbps Green Lights green wh...

Страница 16: ...ork into smaller and more manageable segments linking them to the larger network so the hop count resets to zero and removes the limitation A switch can be easily configured in any Ethernet Fast Ethernet or Gigabit Ethernet network to significantly increase bandwidth while using conventional cabling and network cards 4 2 Application Examples The LGB5028A and LGB5052A have 28 or 52 Gigabit Ethernet...

Страница 17: ...er 4 Network Planning LGB5052A Gigabit Ethernet Switch Gigabit Ethernet Switch Router Gigabit Ethernet Switch PC Server PC PC PC PC PC PC PC Printer Figure 4 1 Network connection between remote site and central site LGB5052A AP server PCs Printer Figure 4 2 Peer to peer network connection ...

Страница 18: ... 5500 blackbox com Page 18 LGB5028A Installation and Getting Started Guide Chapter 4 Network Planning LGB5052A Gigabit Managed Switch Gigabit Managed Switch Internet Router Figure 4 3 Office network connection ...

Страница 19: ... the switch in a network make sure that the current cables are suitable for 100BASE TX or 1000BASE T operation Check the following criteria against the current installation of your network Cable type Unshielded twisted pair UTP or shielded twisted pair STP cable with RJ 45 connectors we recommend Category 5 or Category 5e with maximum length of 328 feet 100 meters 100BASE TX and we recommend Categ...

Страница 20: ... equipment rack or on a desktop or shelf See the mounting instructions described next 5 5 1 Rackmounting Before rackmounting the switch consider the following factors Temperature Since the temperature within a rack assembly may be higher than the ambient room temperature check that the rack environment temperature is within the specified operating temperature range 32 to 104 F 0 to 40 C Mechanical...

Страница 21: ... secure the lower rackmounting screws first to avoid bending the brackets by the weight of the switch Figure 5 2 Installing the switch in a rack STEP 3 If installing a single switch only see Section 5 7 Connecting to a Power Source STEP 4 If installing multiple switches mount them in the rack one below the other in any order 5 5 2 Desktop or Shelf Mounting STEP 1 Attach the four adhesive rubber fe...

Страница 22: ...ve a mini GBIC SFP from a mini GBIC slot without having to power off the switch Contact Black Box Technical Support at 724 746 5500 or info blackbox com to order the mini GBIC SFPs NOTES 1 The mini GBIC slots are shared with the two 10 100 1000BASE T RJ 45 ports If a mini GBIC is installed in a slot the associated RJ 45 port is disabled and cannot be used 2 The mini GBIC ports operate only at full...

Страница 23: ... an appropriate SFP transceiver type STEP 2 Insert the transceiver with the optical connector 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 into place NOTE SFP transceivers are not included with the switch Contact Black Box Technical Support at 724 746...

Страница 24: ...ut Wiring Map for Serial Cable The DB9 cable connects a terminal or terminal emulator to the switch s RS 232 port to access the command line interface The table on the next page shows the pin assignments for the DB9 cable Table 5 2 Serial Cable wiring Function Mnemonic Pin Carrier Detect CD 1 Receive Data RXD 2 Transmit Data TXD 3 Data Terminal Ready DTR 4 Signal Ground GND 5 Data Set Ready DSR 6 ...

Страница 25: ...54 Username admin Password blank no password After you configure the managed switch in the CLI via the switch s serial interface you can browse it For instance type http 192 168 1 1 in the address row in a browser it will show the following screen and ask you to input a username and password to log in and access authentication The default username is admin and the password is empty The first time ...

Страница 26: ...ration of Web based Management NOTE To configure the switch you can see the instructions in the User Guide Or access the Switch and click on the help button under the Web GUI The switch s Help screens will pop up Figure QS 19 The switch s Web help screen Figure 6 2 System Information Help screen ...

Страница 27: ...switches routers or hubs For further information on cabling see Chapter 11 CAUTION Do not plug a phone jack connector into an RJ 45 port This will damage the switch Use only twisted pair cables with RJ 45 connectors that conform to FCC standards 7 3 Connecting to PCs Servers Hubs and Switches STEP 1 Attach one end of a twisted pair cable segment to the device s RJ 45 connector Figure 7 1 Making tw...

Страница 28: ...s Each multi mode fiber optic port requires 50 125 or 62 5 125 micron multimode fiber optic cabling with an LC connector at both ends WARNING This switch uses lasers to transmit signals over fiber optic cable The lasers are inherently eye safe in normal operation Never look directly at a transmit port when it is powered on WARNING When selecting a fiber SFP device make sure that it can function at...

Страница 29: ...mmend that you use Category 5e or Category 6 cable for all critical connections or any new cable installations The Category 5e and 6 specifications include test parameters that are only recommendations for Category 5 Therefore the first step in preparing existing Category 5 cabling for running 1000BASE T is a simple test of the cable installation to be sure that it complies with the IEEE 802 3 200...

Страница 30: ...s Fiber Size Fiber Bandwidth Maximum Cable Length Connector Single mode fiber TX 1310 nm RX 1550 nm N A 12 42 miles 20 km BIDI LC Single mode fiber TX 1550 nm RX 1310 nm N A 12 42 miles 20 km BIDI LC 7 8 100 Mbps Fast Ethernet Collision Domain Table 7 5 100 Mbps Fast Ethernet cable length Cable Type Maximum Cable Length Connector Category 5 5e or 6 100 ohm UTP or STP 328 feet 100 m RJ 45 ...

Страница 31: ...low these guidelines Clearly label the opposing ends of each cable Using your building s floor plans draw a map of the location of all network connected equipment For each piece of equipment identify the devices to which it is connected Note the length of each cable and the maximum cable length supported by the switch ports Use a location based key when assigning prefixes to your cable labeling Us...

Страница 32: ...tch and the device Make sure all devices connected to the LGB5028A and LGB5052A switches devices are configured to autonegotiate or are configured to connect at half duplex all hubs are configured this way for example Faulty or loose cables Look for loose or obviously faulty connections If they appear to be OK make sure the connections are snug If that does not correct the problem try a different ...

Страница 33: ...lace the defective adapter or cable if necessary 9 2 Contacting Black Box If you determine that your switch is malfunctioning do not attempt to alter or repair the unit It contains no user serviceable parts Contact Black Box Technical Support at 724 746 5500 or info blackbox com Before you do make a record of the history of the problem We will be able to provide more efficient and accurate assista...

Страница 34: ...hem in an alternate environment where you are sure that all the other components are functioning properly 10 2 In Band Access You can access the management agent in the switch from anywhere within the attached network using Telnet or a Web browser You must first configure the switch with a valid IP address subnet mask and default gateway If you have trouble establishing a link to the management ag...

Страница 35: ...tegory 5 or better cable for 100 Mbps connections Also be sure that the length of any twisted pair connection does not exceed 328 feet 100 m The RJ 45 ports on the switch base unit support automatic MDI MDI X operation so you can use straight through cables for all network connections to PCs or servers or to other switches or hubs In straight through cable Pins 1 2 3 and 6 at one end of the cable ...

Страница 36: ...ire pairs as shown in Figure 11 3 to support Gigabit Ethernet EIA TIA 568B RJ 45 Wiring Standard 10 100BASE TX Crossover Cable 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 End A End B Figure 11 3 Crossover wiring 11 5 1000BASE T Pin Assignments All 1000BASE T ports support automatic MDI MDI X operation so you can use straight through cables for all network connections to PCs or servers or to other switches or ...

Страница 37: ...ar End Crosstalk FEXT This cable testing information is specified in the ANSI TIA EIA TSB 67 standard Additionally cables must also pass test parameters for Return Loss and Equal Level Far End Crosstalk ELFEXT These tests are specified in the ANSI TIA EIA TSB 95 Bulletin The Additional Transmission Performance Guidelines for 100 Ohm 4 Pair Category 5 Cabling NOTE When testing your cable installati...

Страница 38: ... and extended reach Optimized for wavelength division multiplexing WDM transmission across wavelengths form 1285 to 1625 nm The zero dispersion wavelength is in the 1310 nm region G 653 Dispersion shifted fiber single mode 9 125 micron core Longer spans and extended reach Optimized for operation in the 1500 to 1600 nm band G 654 1550 nm loss minimized fiber single mode 9 125 micron core Extended l...

Страница 39: ...communication system developed and standardized by DEC Intel and Xerox using baseband transmission CSMA CD access logical bus topology and coaxial cable The successor IEEE 802 3 standard provides for integration into the OSI model and extends the physical layer and media with repeaters and implementations that operate on fiber thin coax and twisted pair cable Fast Ethernet A 100 Mbps network commu...

Страница 40: ...Switched Ports Ports that are on separate collision domains or LAN segments TIA Telecommunications Industry Association Transmission Control Protocol Internet Protocol TCP IP Protocol suite that includes TCP as the primary transport protocol and IP as the network layer protocol User Datagram Protocol UDP UDP provides a datagram mode for the packet switched communications It uses the IP as the unde...

Страница 41: ...724 746 5500 blackbox com Page 41 LGB5028A Installation and Getting Started Guide NOTES ...

Страница 42: ...724 746 5500 blackbox com Page 42 LGB5028A Installation and Getting Started Guide NOTES ...

Страница 43: ...724 746 5500 blackbox com Page 43 LGB5028A Installation and Getting Started Guide NOTES ...

Страница 44: ...ction products to media converters and Ethernet switches all supported by free live 24 7 Tech support available in 30 seconds or less Copyright 2012 Black Box Corporation All rights reserved Black Box Tech Support FREE Live 24 7 Tech support the way it should be Great tech support is just 30 seconds away at 724 746 5500 or blackbox com LGB5028A Installation and Getting Started Guide version 1 ...

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