Accton Technology Edge-Core ES4528V Installation Manual Download Page 27

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HAPTER

| Introduction

Description of Hardware

– 27 –

OWER

UPPLY

OCKET

There is one power socket on the rear panel of the switch. The standard power
socket is for the AC power cord.

Figure 3: Power Supply Socket

DIAG

On Green

The system diagnostic test has completed

successfully.

On Yellow

The system diagnostic test is in progress.

Flashing Yellow

The system diagnostic test has detected a fault.

Flashing Green and

Yellow

The system is booting up.

Table 3: System Status LEDs (Continued)

LED

Condition

Status

100-240V ~ 50-60Hz, 2A MAX

Summary of Contents for Edge-Core ES4528V

Page 1: ...www edge core com Installation Guide Powered by Accton ES4528V 28 Port Gigabit Ethernet Switch ...

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Page 3: ...INSTALLATION GUIDE ES4528V GIGABIT ETHERNET SWITCH Layer 2 Switch with 24 10 100 1000BASE T RJ 45 Ports and 4 Gigabit Combination Ports RJ 45 SFP ES4528V E072009 ST R01 150200000022A ...

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Page 5: ...interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment You may use unshielded t...

Page 6: ...o EN 61000 3 3 1995 Immunity Product family standard according to EN 55024 1998 Electrostatic Discharge according to EN 61000 4 2 1995 Contact Discharge 4 kV Air Discharge 8 kV Radio frequency electromagnetic field according to EN 61000 4 3 1996 80 1000 MHz with 1 kHz AM 80 Modulation 3 V m Electrical fast transient burst according to EN 61000 4 4 1995 AC DC power supply 1 kV Data Signal lines 0 5...

Page 7: ...transmit laser while it is powered on Also never look directly at the fiber TX port and fiber cable ends when they are powered on Ne regardez jamais le laser tant qu il est sous tension Ne regardez jamais directement le port TX Transmission à fibres optiques et les embouts de câbles à fibres optiques tant qu ils sont sous tension Niemals ein Übertragungslaser betrachten während dieses eingeschalte...

Page 8: ...he socket outlet must be near to the unit and easily accessible You can only remove power from the unit by disconnecting the power cord from the outlet This unit operates under SELV Safety Extra Low Voltage conditions according to IEC 60950 The conditions are only maintained if the equipment to which it is connected also operates under SELV conditions France and Peru only This unit cannot be power...

Page 9: ...0 Power Cord Set U S A and Canada The cord set must be UL approved and CSA certified The minimum specifications for the flexible cord are No 18 AWG not longer than 2 meters or 16 AWG Type SV or SJ 3 conductor The cord set must have a rated current capacity of at least 10 A The attachment plug must be an earth grounding type with NEMA 5 15P 15 A 125 V or NEMA 6 15P 15 A 250 V configuration Denmark ...

Page 10: ...on portant l appellation Neutre et avec raccordement direct à la terre masse Cordon électrique Il doit être agréé dans le pays d utilisation Etats Unis et Canada Le cordon doit avoir reçu l homologation des UL et un certificat de la CSA Les spécifications minimales pour un cable flexible sont AWG No 18 ouAWG No 16 pour un cable de longueur inférieure à 2 mètres type SV ou SJ 3 conducteurs Le cordo...

Page 11: ...räteeingang haben Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein Die Stromversorgung des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden Der Betrieb dieses Geräts erfolgt unter den SELV Bedingungen Sicherheitskleinstspannung gemäß IEC 60950 Diese Bedingungen sind nur gegeben wenn auch die an das Gerät angeschlossenen Geräte...

Page 12: ...ts WARNING Installation and removal of the unit must be carried out by qualified personnel only WARNING When connecting this device to a power outlet connect the field ground lead on the tri pole power plug to a valid earth ground line to prevent electrical hazards WARNING This switch uses lasers to transmit signals over fiber optic cable The lasers are compliant with the requirements of a Class 1...

Page 13: ...and disposal of all included electrical components once the product has reached the end of its life MANUFACTURING MATERIALS There are no hazardous nor ozone depleting materials in this product DOCUMENTATION All printed documentation for this product uses biodegradable paper that originates from sustained and managed forests The inks used in the printing process are non toxic ...

Page 14: ...COMPLIANCES AND SAFETY STATEMENTS 14 ...

Page 15: ...onventions are used throughout this guide to show information RELATED PUBLICATIONS The following publication gives specific information on how to operate and use the management functions of the switch The Management Guide Also as part of the switch s software there is an online web based help that describes all management related features NOTE Emphasizes important information or calls your attenti...

Page 16: ...ABOUT THIS GUIDE 16 REVISION HISTORY This section summarizes the changes in each revision of this guide MAY 2009 REVISION This is the first revision of this guide ...

Page 17: ...ING 29 Introduction to Switching 29 Application Examples 30 Application Notes 34 3 INSTALLING THE SWITCH 35 Selecting a Site 35 Ethernet Cabling 36 Equipment Checklist 37 Mounting 38 Installing an Optional SFP Transceiver 41 Connecting to a Power Source 42 Connecting to the Console Port 43 4 MAKING NETWORK CONNECTIONS 45 Connecting Network Devices 45 Twisted Pair Devices 45 ...

Page 18: ...OTING 53 Diagnosing Switch Indicators 53 Power and Cooling Problems 54 Installation 54 In Band Access 54 B CABLES 55 Twisted Pair Cable and Pin Assignments 55 Fiber Standards 59 C SPECIFICATIONS 61 Physical Characteristics 61 Switch Features 63 Management Features 63 Standards 64 Compliances 64 GLOSSARY 65 INDEX 71 ...

Page 19: ...0BASE SX Gigabit Ethernet Cable Lengths 50 Table 7 Maximum 1000BASE LX Gigabit Ethernet Cable Length 51 Table 8 Maximum 1000BASE LH Gigabit Ethernet Cable Length 51 Table 9 Maximum Fast Ethernet Cable Lengths 51 Table 10 Maximum Ethernet Cable Length 51 Table 11 Troubleshooting Chart 53 Table 12 10 100BASE TX MDI and MDI X Port Pinouts 56 Table 13 1000BASE T MDI and MDI X Port Pinouts 58 Table 14 ...

Page 20: ...TABLES 20 ...

Page 21: ...36 Figure 9 Attaching the Brackets 39 Figure 10 Installing the Switch in a Rack 39 Figure 11 Attaching the Adhesive Feet 40 Figure 12 Inserting an SFP Transceiver into a Slot 41 Figure 13 Power Socket 42 Figure 14 Serial Port DB 9 DTE Pin Out 43 Figure 15 Making Twisted Pair Connections 46 Figure 16 Network Wiring Connections 47 Figure 17 Making Fiber Port Connections 49 Figure 18 RJ 45 Connector ...

Page 22: ...FIGURES 22 ...

Page 23: ... of powerful features for Layer 2 switching delivering reliability and consistent performance for your network traffic It brings order to poorly performing networks by segregating them into separate broadcast domains with IEEE 802 1Q compliant VLANs and empowers multimedia applications with multicast switching and CoS services Figure 1 Front and Rear Panels 1 If an SFP transceiver is plugged in th...

Page 24: ...e port The switch includes a built in network management agent that allows it to be managed in band using SNMP or RMON Groups 1 2 3 9 protocols It also has an RS 232 serial port DB 9 connector on the front panel for out of band management A PC may be connected to this port for configuration and monitoring out of band via a null modem serial cable See Appendix B for wiring options For a detailed de...

Page 25: ... configured to force the use of an RJ 45 port or SFP slot as required The following table shows a list of transceiver types which have been tested with the switch For an updated list of vendors supplying these transceivers contact your local EdgeCore dealer For information on the recommended standards for fiber optic cabling see 1000 Mbps Gigabit Ethernet Collision Domain on page 50 Table 1 Suppor...

Page 26: ...les Figure 2 Port LEDs Table 2 Port Status LEDs LED Condition Status Link Activity On Flashing Yellow Port has established a valid 10 100 Mbps network connection Flashing indicates activity On Flashing Green Port has established a valid 1000 Mbps network connection Flashing indicates activity Off There is no valid link on the port Table 3 System Status LEDs LED Condition Status PWR On Green The un...

Page 27: ...the AC power cord Figure 3 Power Supply Socket DIAG On Green The system diagnostic test has completed successfully On Yellow The system diagnostic test is in progress Flashing Yellow The system diagnostic test has detected a fault Flashing Green and Yellow The system is booting up Table 3 System Status LEDs Continued LED Condition Status 100 240V 50 60Hz 2A MAX ...

Page 28: ...CHAPTER 1 Introduction Description of Hardware 28 ...

Page 29: ... experiencing congestion server power user or hub can be attached directly to a switched port And by using full duplex mode the bandwidth of the dedicated segment can be doubled to maximize throughput When networks are based on repeater hub technology the distance between end stations is limited by a maximum hop count However a switch turns the hop count back to zero So subdividing the network int...

Page 30: ...the near future You can easily build on this basic configuration adding direct full duplex connections to workstations or servers When the time comes for further expansion just connect to another hub or switch using one of the Fast Ethernet ports built into the front panel or a Gigabit Ethernet port on a plug in SFP transceiver In the figure below the switch is operating as a collapsed backbone fo...

Page 31: ...lex network down into a single efficient bridged node increasing overall bandwidth and throughput In the figure below the 1000BASE T ports on the switch are providing 100 Mbps connectivity for up to 28 segments In addition the switch is also connecting several servers at 1000 Mbps Figure 5 Network Aggregation Plan Server Farm 10 100 Mbps Segments 1000 Mbps Segments 28 27 ...

Page 32: ...SMF link up to 5 km and a 1000BASE LH link up to 70 km This allows the switch to serve as a collapsed backbone providing direct connectivity for a widespread LAN The figure below illustrates the switch connecting multiple segments with fiber cable Figure 6 Remote Connections with Fiber Cable Headquarters 1000BASE LX SMF 5 kilometers Remote Switch 10 100 1000 Mbps Segments 1000BASE SX MMF 550 meter...

Page 33: ...d port groups or traffic can be explicitly tagged to identify the VLAN group to which it belongs Untagged VLANs can be used for small networks attached to a single switch However tagged VLANs should be used for larger networks and all the VLANs assigned to the inter switch links Figure 7 Making VLAN Connections NOTE When connecting to a switch that does not support IEEE 802 1Q VLAN tags use untagg...

Page 34: ...b unless it is actually required to solve a problem Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub 3 Based on recommended standards the length of fiber optic cable for a single switched link should not exceed 1000BASE SX 550 m 1805 ft for multimode fiber 1000BASE LX 5 km 3 1 miles for single mode fiber 1000BASE LH 70 km 43 5 miles for si...

Page 35: ...pace approximately two inches on all sides for proper air flow be accessible for installing cabling and maintaining the devices allow the status LEDs to be clearly visible Make sure twisted pair cable is always routed away from power lines fluorescent lighting fixtures and other sources of electrical interference such as radios and transmitters Make sure that the unit is connected to a separate gr...

Page 36: ...rk Cable type Unshielded twisted pair UTP or shielded twisted pair STP cables with RJ 45 connectors Category 3 or better for 10BASE T Category 5 or better for 100BASE TX and Category 5 5e or 6 for 1000BASE T Protection from radio frequency interference emissions Electrical surge suppression Separation of electrical wires switch related or other and electromagnetic fields from data based network wi...

Page 37: ...Four adhesive foot pads Bracket Mounting Kit containing two brackets and eight screws for attaching the brackets to the switch Power Cord either US Continental Europe or UK RS 232 console cable This Installation Guide Management Guide CD OPTIONAL RACK MOUNTING EQUIPMENT If you plan to rack mount the switch be sure to have the following equipment available Four mounting screws for each device you p...

Page 38: ...bient room temperature check that the rack environment temperature is within the specified operating temperature range See page 62 Mechanical Loading Do not place any equipment on top of a rack mounted unit Circuit Overloading Be sure that the supply circuit to the rack assembly is not overloaded Grounding Rack mounted equipment should be properly grounded Particular attention should be given to s...

Page 39: ...g the Brackets 2 Mount the device in the rack using four rack mounting screws not provided Be sure to secure the lower rack mounting screws first to prevent the brackets being bent by the weight of the switch Figure 10 Installing the Switch in a Rack 28 27 28 27 ...

Page 40: ... four adhesive feet to the bottom of the first switch Figure 11 Attaching the Adhesive Feet 2 Set the device on a flat surface near an AC power source making sure there are at least two inches of space on all sides for proper air flow 3 If installing a single switch only go to Connecting to a Power Source at the end of this chapter 4 If installing multiple switches attach four adhesive feet to eac...

Page 41: ...BASE SX 1000BASE LX 1000BASE LH To install an SFP transceiver do the following 1 Consider network and cabling requirements to select an appropriate SFP transceiver type 2 Insert the transceiver with the optical connector facing outward and the slot connector facing down Note that SFP transceivers are keyed so they can only be installed in one orientation 3 Slide the SFP transceiver into the slot u...

Page 42: ...device is powered on to be sure the PWR LED is lit If not check that the power cable is correctly plugged in NOTE SFP transceivers are hot swappable The switch does not need to be powered off before installing or removing a transceiver However always first disconnect the network cable before removing a transceiver NOTE SFP transceivers are not provided in the switch package NOTE For International ...

Page 43: ...m The pin assignments used to connect to the serial port are provided in the following table Figure 14 Serial Port DB 9 DTE Pin Out WIRING MAP FOR SERIAL CABLE The serial port s configuration requirements are as follows Default Baud rate 115 200 bps Character Size 8 Characters Parity None Stop bit One Table 4 Serial Cable Wiring Switch s 9 Pin Serial Port Null Modem PC s 9 Pin DTE Port 2 RXD recei...

Page 44: ...CHAPTER 3 Installing the Switch Connecting to the Console Port 44 Data bits 8 Flow control none ...

Page 45: ...for 100BASE TX connections and Category 3 or better for 10BASE T connections CABLING GUIDELINES The RJ 45 ports on the switch support automatic MDI MDI X pinout configuration so you can use standard straight through twisted pair cables to connect to any other network device PCs servers switches routers or hubs See Appendix B for further information on cabling Do not plug a phone jack connector int...

Page 46: ...e wiring closet See the section Network Wiring Connections Otherwise attach the other end to an available port on the switch Make sure each twisted pair cable does not exceed 100 meters 328 ft in length 3 As each connection is made the Link LED on the switch corresponding to each port will light green 1000 Mbps or yellow 10 100 Mbps to indicate that the connection is valid NOTE Avoid using flow co...

Page 47: ...llows 1 Attach one end of a patch cable to an available port on the switch and the other end to the patch panel 2 If not already in place attach one end of a cable segment to the back of the patch panel where the punch down block is located and the other end to a modular wall outlet 3 Label the cables to simplify future troubleshooting See Cable Labeling and Connection Records on page 52 Figure 16...

Page 48: ...lean tissue or cotton ball moistened with a little ethanol Dirty fiber terminators on fiber optic cables will impair the quality of the light transmitted through the cable and lead to degraded performance on the port 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 are keyed the cable can be attached in only one or...

Page 49: ...rresponding to the port to be sure that the connection is valid The 1000BASE SX 1000BASE LX 1000BASE LH fiber optic ports operate at 1 Gbps full duplex with auto negotiation of flow control The maximum length for fiber optic cable operating at Gigabit speed will depend on the fiber type as listed under 1000 Mbps Gigabit Ethernet Collision Domain on page 50 28 27 27 ...

Page 50: ...stallations Category 5e enhanced Category 5 or Category 6 cable should be used 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 2005 standards 1000 MBPS GIGABIT ET...

Page 51: ... ft 3 2 miles LC Table 8 Maximum 1000BASE LH Gigabit Ethernet Cable Length Fiber Size Fiber Bandwidth Maximum Cable Length Connector 9 125 micron single mode fiber N A 2 m 70 km 7 ft 43 5 miles LC Table 9 Maximum Fast Ethernet Cable Lengths Type Cable Type Max Cable Length Connector 100BASE TX Category 5 or better 100 ohm UTP or STP 100 m 328 ft RJ 45 Table 10 Maximum Ethernet Cable Length Type Ca...

Page 52: ...se 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 For ease of understanding use a location based key when assigning prefixes to you...

Page 53: ...s not clear contact your dealer for assistance Link LED is Off Verify that the switch and attached device are powered on Be sure the cable is plugged into both the switch and corresponding device If the switch is installed in a rack check the connections to the punch down block and patch panel Verify that the proper cable type is used and its length does not exceed specified limits Check the adapt...

Page 54: ...ll the other components are functioning properly IN BAND ACCESS You can access the management agent in the switch from anywhere within the attached network using Telnet a web browser or other network management software tools However 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 agent check to s...

Page 55: ...hite stripes Also an RJ 45 connector must be attached to both ends of the cable The figure below illustrates how the pins on the RJ 45 connector are numbered Be sure to hold the connectors in the same orientation when attaching the wires to the pins Figure 18 RJ 45 Connector Pin Numbers CAUTION DO NOT plug a phone jack connector into any RJ 45 port Use only twisted pair cables with RJ 45 connector...

Page 56: ...er end of the cable When using any RJ 45 port on this switch you can use either straight through or crossover cable Note The and signs represent the polarity of the wires that make up each wire pair STRAIGHT THROUGH WIRING If the twisted pair cable is to join two ports and only one of the ports has an internal crossover MDI X the two pairs of wires must be straight through When auto negotiation is...

Page 57: ...or crossover cable to connect to any device type You must connect all four wire pairs as shown in the following diagram to support Gigabit Ethernet Figure 20 Crossover Wiring White Orange Stripe Orange White Green Stripe Green 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 EIA TIA 568B RJ 45 Wiring Standard 10 100BASE TX Straight through Cable End A End B Blue White Blue Stripe Brown White Brown Stripe White Ora...

Page 58: ...ng 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 that when testing your cable installation be sure to include all patch c...

Page 59: ...ummarized in the following table Table 14 Fiber Standards ITU T Standard Description Application G 651 Multimode Fiber 50 125 micron core Short reach connections in the 1300 nm or 850 nm band G 652 Non Dispersion Shifted Fiber Single mode 9 125 micron core Longer spans and extended reach Optimized for operation in the 1310 nm band but can also be used in the 1550 nm band G 652 C Low Water Peak Non...

Page 60: ...nsmission in the 1500 to 1600 nm region with low loss in the 1550 nm band G 655 Non Zero Dispersion Shifted Fiber Single mode 9 125 micron core Extended long haul applications Optimized for high power dense wavelength division multiplexing DWDM operation in the region from 1500 to 1600 nm Table 14 Fiber Standards Continued ITU T Standard Description Application ...

Page 61: ... X 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 100 m 328 ft BUFFER ARCHITECTURE 64KB packet buffer per port AGGREGATE BANDWIDTH 56 Gbps SWITCHING DATABASE 8K MAC address entries LEDS System PWR DIAG Diagnostic Port status link speed and activity 10 100...

Page 62: ... 73 in TEMPERATURE Operating 0 C to 45 C 32 F to 113 F Storage 40 C to 70 C 40 F to 158 F HUMIDITY Operating 10 to 90 non condensing AC INPUT 100 to 240 V 50 60 Hz 2A POWER SUPPLY Internal auto ranging transformer 100 to 240 VAC 50 to 60 Hz POWER CONSUMPTION 32 Watts maximum MAXIMUM CURRENT 0 25 A 100 VAC 0 12 A 240 VAC ...

Page 63: ...G MODE Store and forward THROUGHPUT Wire speed FLOW CONTROL Full Duplex IEEE 802 3x Half Duplex Back pressure MANAGEMENT FEATURES IN BAND MANAGEMENT SSH Telnet SNMP or HTTP OUT OF BAND MANAGEMENT RS 232 DB 9 console port SOFTWARE LOADING TFTP in band or XModem out of band ...

Page 64: ...ol Link Aggregation Control Protocol IEEE 802 1D 2004 Spanning Tree Protocol Rapid Spanning Tree Protocol Multiple Spanning Tree Protocol ISO IEC 8802 3 COMPLIANCES EMISSIONS EN55022 CISPR 22 Class A EN 61000 3 2 3 FCC Class A CE Mark IMMUNITY EN 61000 4 2 3 4 5 6 8 11 SAFETY CSA CSA 22 2 NO 60950 1 UL 60950 1 CB IEC EN60950 1 ...

Page 65: ... specification for Gigabit Ethernet over two strands of 50 125 62 5 125 or 9 125 micron core fiber cable 1000BASE SX IEEE 802 3z specification for Gigabit Ethernet over two strands of 50 125 or 62 5 125 micron core fiber cable 1000BASE T IEEE 802 3ab specification for Gigabit Ethernet over 100 ohm Category 5 5e or 6 twisted pair cable using all four wire pairs AUTO NEGOTIATION Signalling method al...

Page 66: ...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 communication syste...

Page 67: ... and physical layer specifications for 100BASE TX Fast Ethernet Now incorporated in IEEE 802 3 2002 IEEE 802 3X Defines Ethernet frame start stop requests and timers used for flow control on full duplex links Now incorporated in IEEE 802 3 2002 IEEE 802 3Z Defines CSMA CD access method and physical layer specifications for 1000BASE Gigabit Ethernet Now incorporated in IEEE 802 3 2002 LAN SEGMENT S...

Page 68: ... MHz per km which indicates the amount of bandwidth supported by the fiber for a one km distance NETWORK DIAMETER Wire distance between two end stations in the same collision domain RJ 45 CONNECTOR A connector for twisted pair wiring SWITCHED PORTS Ports that are on separate collision domains or LAN segments TIA Telecommunications Industry Association TRANSMISSION CONTROL PROTOCOL INTERNET PROTOCO...

Page 69: ...too slow or just unnecessary UTP Unshielded twisted pair cable VIRTUAL LAN VLAN A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network A VLAN serves as a logical workgroup with no physical barriers allowing users to share information and resources as though located on the same LAN ...

Page 70: ...GLOSSARY 70 ...

Page 71: ... EMC 64 safety 64 connectivity rules 10 Mbps 51 100 Mbps 51 1000 Mbps 50 console port pin assignments 43 contents of package 37 cooling problems 54 cord sets international 42 D desktop mounting 40 device connections 45 E electrical interference avoiding 35 equipment checklist 37 Ethernet connectivity rules 51 F Fast Ethernet connectivity rules 51 features 63 fiber cables 48 flow control IEEE 802 3...

Page 72: ...r panel of switch 23 rear panel socket 27 RJ 45 port 24 connections 45 pinouts 58 RMON 24 RS 232 port 24 rubber foot pads attaching 40 S screws for rack mounting 37 serial cable 24 port 24 SFP transceiver slots 25 single mode fiber optic cables 48 site selelction 35 SNMP agent 24 specifications compliances 64 environmental 62 power 62 standards compliance 64 IEEE 64 status LEDs 26 surge suppressor...

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Page 74: ...ES4528V E072009 ST R01 150200000022A ...

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