D-Link DES-3800 User Manual

User Manual

Product Model:

Layer 3 Stackable Fast Ethernet Managed Switch

Release 4. 5

DES-3800 Series

©Copyright 2008. All rights reserved.

xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

_____________________________________________________________________________

Information in this document is subject to change without notice.
© 2008 D-Link Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation is strictly forbidden.
Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered trademarks of

Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. D-Link Computer

Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
June 2008 P/N 651ES3800055G

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Table of Contents

Preface ........................................................................................................................................................................................... x

Intended Readers........................................................................................................................................................................... xi

Typographical Conventions..........................................................................................................................................................xi

Notes, Notices, and Cautions........................................................................................................................................................xi

Safety Instructions .......................................................................................................................................................................xii

Safety Cautions............................................................................................................................................................................................ xii

General Precautions for Rack-Mountable Products .................................................................................................................................... xiii

Protecting Against Electrostatic Discharge..................................................................................................................................................xiv

Introduction......................................................................................................................................................1

xStack DES-3800 Series................................................................................................................................................................ 1

Gigabit Ethernet Technology..........................................................................................................................................................................1

Switch Description..........................................................................................................................................................................................1

Features...........................................................................................................................................................................................................2

Ports................................................................................................................................................................................................................3

Front-Panel Components.................................................................................................................................................................................2

Rear Panel Description....................................................................................................................................................................................6

Side Panel Description....................................................................................................................................................................................7

Gigabit Ports ...................................................................................................................................................................................................7

Installation........................................................................................................................................................8

Package Contents............................................................................................................................................................................................8

Before You Connect to the Network...............................................................................................................................................................8

Installing the Switch without the Rack............................................................................................................................................................9

Installing the Switch in a Rack........................................................................................................................................................................9

Mounting the Switch in a Standard 19" Rack................................................................................................................................................10

Wall Mounting the DES-3828P ....................................................................................................................................................................11

Connecting DC Power to the DES-3828DC..................................................................................................................................................12

RPS Installation.............................................................................................................................................................................................13

Connecting the Switch...................................................................................................................................17

Switch to End Node ......................................................................................................................................................................................17

Switch to Hub or Switch...............................................................................................................................................................................18

Connecting To Network Backbone or Server................................................................................................................................................19

Introduction to Switch Management ...........................................................................................................20

Management Options................................................................................................................................................................... 20

Web-based Management Interface................................................................................................................................................................20

SNMP-Based Management .......................................................................................................... .................................................................20

Connecting the Console Port (RS-232 DCE)................................................................................................................................................20

First Time Connecting to the Switch.............................................................................................................................................................22

Password Protection......................................................................................................................................................................................23

SNMP Settings..............................................................................................................................................................................................24

IP Address Assignment.................................................................................................................................................................................25

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Web-based Switch Configuration.................................................................................................................27

Introduction.................................................................................................................................................................................. 27

Login to Web Manager .................................................................................................................................................................................27

Web-based User Interface.............................................................................................................................................................................28

Web Pages.....................................................................................................................................................................................................29

Administration...............................................................................................................................................30

Device Information...................................................................................................................................................................... 31

IP Address.................................................................................................................................................................................... 33

Port Configuration........................................................................................................................................................................36

Port Settings.................................................................................................................................................................................................. 36

Port Description............................................................................................................................................................................................38

PoE Configuration........................................................................................................................................................................39

User Accounts.............................................................................................................................................................................. 40

Port Mirroring.............................................................................................................................................................................. 42

System Log Settings.....................................................................................................................................................................43

System Severity Settings.............................................................................................................................................................. 45

SNTP Settings.............................................................................................................................................................................. 46

Time Settings................................................................................................................................................................................................46

Time Zone and DST......................................................................................................................................................................................47

MAC Notification Settings ..........................................................................................................................................................49

TFTP Services.............................................................................................................................................................................. 50

Multiple Image Services .............................................................................................................................................................. 51

Firmware Information...................................................................................................................................................................................51

Dual Configuration Services........................................................................................................................................................ 52

Ping Test...................................................................................................................................................................................... 53

SNMP Manager ........................................................................................................................................................................... 54

SNMP Settings..............................................................................................................................................................................................54

SNMP User Table.........................................................................................................................................................................................55

SNMP View Table........................................................................................................................................................................................57

SNMP Group Table.......................................................................................................................................................................................58

SNMP Community Table Configuration.......................................................................................................................................................59

SNMP Host Table.........................................................................................................................................................................................60

SNMP Engine ID..........................................................................................................................................................................................62

SNMP Trap Settings.....................................................................................................................................................................................62

D-Link Single IP Management.................................................................................................................................................... 63

Single IP Management (SIM) Overview.......................................................................................................................................................63

SIM Using the Web Interface........................................................................................................................................................................64

Topology.......................................................................................................................................................................................................66

Tool Tips.......................................................................................................................................................................................................68

Right Click....................................................................................................................................................................................................69

Menu Bar ......................................................................................................................................................................................................71

Packet to CPU Settings................................................................................................................................................................ 72

Layer 2 Features ............................................................................................................................................73

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

VLANs......................................................................................................................................................................................... 73

Understanding IEEE 802.1p Priority.............................................................................................................................................................73

VLAN Description........................................................................................................................................................................................73

IEEE 802.1Q VLANs....................................................................................................................................................................................74

Double VLANs.............................................................................................................................................................................................79

Static VLAN Entry........................................................................................................................................................................................80

GVRP Setting................................................................................................................................................................................................84

Double VLAN...............................................................................................................................................................................................85

Trunking........................................................................................................................................................................................................87

Link Aggregation..........................................................................................................................................................................................88

LACP Port Settings............................................................................................................. ..........................................................................90

IGMP ........................................................................................................................................................................................... 91

IGMP Snooping ............................................................................................................................................................................................91

Static Router Port Settings............................................................................................................................................................................93

IGMP Multicast VLAN.................................................................................................................................................................................94

MLD Snooping ............................................................................................................................................................................ 95

MLD Snooping Settings................................................................................................................................................................................96

MLD Snooping Static Router Port Settings ..................................................................................................................................................97

Spanning Tree.............................................................................................................................................................................. 98

STP Bridge Global Settings........................................................................................................................................................................101

MST Configuration Identification...............................................................................................................................................................103

MSTP Port Information...............................................................................................................................................................................105

STP Instance Settings..................................................................................................................................................................................106

STP Port Settings........................................................................................................................................................................................107

STP Ports Information of Instance..............................................................................................................................................................109

Forwarding................................................................................................................................................................................. 110

Unicast Forwarding.....................................................................................................................................................................................110

Multicast Forwarding..................................................................................................................................................................................110

Multicast Port Filtering Mode.....................................................................................................................................................................112

Loopback Detection................................................................................................................................................................... 114

Protocol VLAN...........................................................................................................................................................................................116

Layer 3 Features ..........................................................................................................................................119

IP Multinetting........................................................................................................................................................................... 120

IP Interface Settings....................................................................................................................................................................................120

Loopback IP Interface................................................................................................................................................................ 124

MD5 Key Settings...................................................................................................................................................................... 125

Route Redistribution Settings .................................................................................................................................................... 126

Static/Default Route Settings..................................................................................................................................................... 127

Route Preference Settings.......................................................................................................................................................... 128

Static ARP Table........................................................................................................................................................................ 131

RIP............................................................................................................................................................................................. 132

RIP Global Settings.....................................................................................................................................................................................133

RIP Interface Settings .................................................................................................................................................................................134

OSPF.......................................................................................................................................................................................... 136

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

OSPF Global Settings .................................................................................................................................................................................152

OSPF Area Settings.....................................................................................................................................................................................152

OSPF Interface Settings..............................................................................................................................................................................154

OSPF Virtual Link Settings.........................................................................................................................................................................156

OSPF Area Aggregation Settings................................................................................................................................................................158

OSPF Host Route Settings..........................................................................................................................................................................159

OSPF Default Information Originate Settings.............................................................................................................................................160

DHCP Server ............................................................................................................................................................................. 161

DHCP Server Global Settings.....................................................................................................................................................................161

DHCP Server Pool Settings.........................................................................................................................................................................162

DHCP Server Manual Binding Settings ............................................................................................ ..........................................................163

DHCP Server Excluded Address Settings...................................................................................................................................................164

DHCP Server Conflict IP Table..................................................................................................................................................................164

DHCP Server Binding Table.......................................................................................................................................................................165

DHCP/BOOTP Relay ................................................................................................................................................................ 166

DHCP / BOOTP Relay Global Settings......................................................................................................................................................166

DHCP/BOOTP Relay Interface Settings.....................................................................................................................................................169

DNS Relay................................................................................................................................................................................. 170

DNS Relay Global Settings.........................................................................................................................................................................170

DNS Relay Static Settings...........................................................................................................................................................................171

VRRP......................................................................................................................................................................................... 172

VRRP Global Settings.................................................................................................................................................................................172

VRRP Virtual Router Settings....................................................................................................................................................................172

VRRP Authentication Settings....................................................................................................................................................................176

IP Multicast Routing Protocol.................................................................................................................................................... 177

IGMP Interface Settings..............................................................................................................................................................................179

DVMRP Interface Configuration............................................................................................................................................... 181

DVMRP Global Settings.............................................................................................................................................................................181

DVMRP Interface Settings..........................................................................................................................................................................181

PIM Protocol.............................................................................................................................................................................. 183

PIM-SM......................................................................................................................................................................................................183

PIM-DM Interface Configuration ...............................................................................................................................................................184

PIM Global Settings....................................................................................................................................................................................184

PIM Interface Settings.................................................................................................................................................................................184

PIM Candidate BSR Settings......................................................................................................................................................................186

PIM Parameter Settings...............................................................................................................................................................................187

PIM Candidate RP Global Settings.............................................................................................................................................................188

PIM Candidate RP Settings.........................................................................................................................................................................188

PIM Register Checksum Settings................................................................................................................................................................189

PIM Static RP Settings................................................................................................................................................................................190

QoS................................................................................................................................................................191

Advantages of QoS .....................................................................................................................................................................................191

Understanding QoS.....................................................................................................................................................................................192

Bandwidth Control..................................................................................................................................................................... 193

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

QoS Scheduling Mec

hanism...................................................................................................................................................... 195

QoS Output Scheduling ............................................................................................................................................................. 196

802.1p Default Priority .............................................................................................................................................................. 197

802.1p User Priority................................................................................................................................................................... 199

WRED Settings.......................................................................................................................................................................... 199

ACL...............................................................................................................................................................201

Access Profile Table .................................................................................................................................................................. 202

Flow Metering Table.................................................................................................................................................................. 220

CPU Interface Filtering.............................................................................................................................................................. 221

CPU Interface Filtering Profile Table.........................................................................................................................................................221

Security.........................................................................................................................................................233

Traffic Control........................................................................................................................................................................... 234

Port Security............................................................................................................................................................................... 236

Port Lock Entries ....................................................................................................................................................................... 237

Port Access Entity (802.1X) ...................................................................................................................................................... 238

802.1x Port-Based and MAC-Based Access Control..................................................................................................................................238

Understanding 802.1x Port-based and MAC-based Network Access Control ............................................................................................241

Port-Based Network Access Control...........................................................................................................................................................241

MAC-Based Network Access Control........................................................................................................................................................242

Configure 802.1x Authenticator Parameter.................................................................................................................................................243

Initializing Ports for Port Based 802.1x......................................................................................................................................................245

Initializing Ports for MAC Based 802.1x....................................................................................................................................................246

Reauthenticate Port(s) for Port Based 802.1x .............................................................................................................................................247

Reauthenticate Port(s) for MAC-based 802.1x...........................................................................................................................................247

Authentication RADIUS Server..................................................................................................................................................................248

RADIUS Attributes Assignment.................................................................................................................................................................249

Guest VLANs..............................................................................................................................................................................................250

Guest VLAN Configuration........................................................................................................................................................................250

Trusted Host............................................................................................................................................................................... 251

Access Authentication Control .................................................................................................................................................. 252

Authentication Policy and Parameter Settings ............................................................................................................................................253

Application Authentication Settings............................................................................................................................................................253

Authentication Server Group ......................................................................................................................................................................254

Authentication Server Host.........................................................................................................................................................................255

Login Method Lists.....................................................................................................................................................................................256

Enable Method Lists ...................................................................................................................................................................................258

Configure Local Enable Password..............................................................................................................................................................260

Enable Admin .............................................................................................................................................................................................260

Three Level User Accounts.........................................................................................................................................................................261

Accounting..................................................................................................................................................................................................262

Traffic Segmentation..................................................................................................................................................................263

Broadcast Segmentation............................................................................................................................................................. 264

Secure Socket Layer (SSL)........................................................................................................................................................ 266

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Download Certificate..................................................................................................................................................................................266

Ciphersuite..................................................................................................................................................................................................266

SSH............................................................................................................................................................................................ 269

SSH Server Configuration...........................................................................................................................................................................269

SSH Authentication Mode and Algorithm Settings.....................................................................................................................................270

SSH User Authentication............................................................................................................................................................................271

IP-MAC Binding........................................................................................................................................................................ 273

ACL Mode.................................................................................................................................................................................................. 273

IP-MAC Binding Port.................................................................................................................................................................................275

IP-MAC Binding Table...............................................................................................................................................................................277

IP-MAC Binding Blocked...........................................................................................................................................................................278

IP-MAC Binding DHCP Snooping Table...................................................................................................................................................278

Limited IP Multicast Range....................................................................................................................................................... 279

Limited IP Multicast Range Port Settings...................................................................................................................................................279

Limited IP Multicast Max Group Settings..................................................................................................................................................281

Web-based Access Control........................................................................................................................................................ 282

Conditions and Limitations.........................................................................................................................................................................282

MAC-Based Access Control...................................................................................................................................................... 286

Notes About MAC-Based Access Control..................................................................................................................................................286

MAC-Based Access Control Global Settings..............................................................................................................................................287

MAC-Based Access Control Port Settings..................................................................................................................................................288

MAC-Based Access Control Local Database Settings................................................................................................................................289

Safeguard Engine....................................................................................................................................................................... 290

Filter ........................................................................................................................................................................................... 292

CPU Filtering Settings................................................................................................................................................................................292

Monitoring....................................................................................................................................................294

Device Status ............................................................................................................................................................................. 294

CPU Utilization.......................................................................................................................................................................... 295

Safeguard Engine Status............................................................................................................................................................ 296

Port Utilization........................................................................................................................................................................... 297

Packets....................................................................................................................................................................................... 298

Received (RX).............................................................................................................................................................................................298

UMB Cast (RX)..........................................................................................................................................................................................300

Transmitted (TX)........................................................................................................................................................................................302

Errors ......................................................................................................................................................................................... 304

Received (RX).............................................................................................................................................................................................304

Transmitted (TX)........................................................................................................................................................................................306

Packet Size................................................................................................................................................................................. 308

Browse Router Port.................................................................................................................................................................... 310

Port Access Control................................................................................................................................................................... 311

RADIUS Authentication.............................................................................................................................................................................311

RADIUS Accounting..................................................................................................................................................................................312

Authenticator State...................................................................................................................................................................................... 313

MAC Address Table .................................................................................................................................................................. 315

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IP Address Table........................................................................................................................................................................ 316

Browse ARP Table .................................................................................................................................................................... 316

Browse IP Multicast Forwarding Table..................................................................................................................................... 317

IGMP Snooping Group.............................................................................................................................................................. 317

IGMP Snooping Forwarding...................................................................................................................................................... 318

Browse IGMP Group Table....................................................................................................................................................... 319

DVMRP Monitoring.................................................................................................................................................................. 320

Browse DVMRP Routing Table..................................................................................................................................................................320

Browse DVMRP Neighbor Table ...............................................................................................................................................................320

Browse DVMRP Routing Next Hop Table.................................................................................................................................................320

PIM Monitoring......................................................................................................................................................................... 321

Browse PIM Neighbor Table ......................................................................................................................................................................321

PIM IP MRoute Table.................................................................................................................................................................................321

Browse PIM RP Set Table ..........................................................................................................................................................................322

Browse PIM Active RP Table.....................................................................................................................................................................322

OSPF Monitor............................................................................................................................................................................ 323

Browse OSPF LSDB Table.........................................................................................................................................................................323

Browse OSPF Neighbor Table....................................................................................................................................................................324

Browse OSPF Virtual Neighbor Table........................................................................................................................................................324

Browse WRED Settings............................................................................................................................................................. 325

Switch Log................................................................................................................................................................................. 326

Switch Maintenance.....................................................................................................................................327

Reset........................................................................................................................................................................................... 327

Reboot System........................................................................................................................................................................... 328

Save Changes............................................................................................................................................................................. 329

Logout........................................................................................................................................................................................ 329

Technical Specifications..............................................................................................................................330

System Log Entries......................................................................................................................................332

Cables and Connectors................................................................................................................................342

Console Cable Pin Assignment...................................................................................................................343

Cable Lengths...............................................................................................................................................344

ARP Packet Content ACL...........................................................................................................................345

Glossary ........................................................................................................................................................353

Warranties/Registration..............................................................................................................................356

Tech Support................................................................................................................................................363

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Preface

The xStack DES-3800 Series User Manual is divided into sections that describe th e system installation and operating in structions
with examples.

Section 1, Introduction - Describes the Switch and its features.
Section 2, Installation- Helps you get started with the basic installation of the Switch and also describes the front panel, rear

panel, side panels, and LED indicators of the Switch. Included in this section is a description of how to hook up the DC power
supply for the DES-3828DC.

Section 3, Connecting the Switch - Tells how you can connect the Switch to your Ethernet/Fast Ethernet network.
Section 4, Introduction to Switch Management - Introduces basic Switch management features, including password protection,

SNMP settings, IP address assignment and connecting devices to the Switch.
Section 5, Introduction to Web-based Switch Management - Talks about connecting to and using the Web-based switch

management feature on the Switch.
Section 6, Administration- A detailed discussion about configuring the basic functions of the Switch, including Device

Information, IP Address, Port Configuration, User Accounts, Port Mirroring, System Log Settings, System Severity Settings,
SNTP Settings, MAC Notification Settings, TFTP Services, Multiple Image Services, Ping Test, SNMP Manager, and Single IP
Management Settings.

Section 7, Layer 2 Features- A discussion of Layer 2 features of the Switch, including VLAN, Trunking, IGMP Snooping,
Spanning Tree and Forwarding.

Section 8, Layer 3 Features- A discussion of Layer 3 features of the Switch, including IP Interface Settings, MD5 Key Settings,
Route Redistribution Settings, Static/Dynamic Route Settings, Route Preference Settings, Static ARP Settings, RIP, OSPF,
DCHP/BOOTP Relay, DNS Relay, VRRP and IP Multicast Routing Protocol.

Section 9, QoS - Features information on QoS, including Bandwidth Control, QoS Scheduling Mechanism, QoS Output,
Scheduling, 802.1P Default Priority, 802.1P User Priority and WRED Settings.

Section 10, ACL- Discussion on the ACL function of the Switch, including Access Profile Table and CPU Interface Filtering.
Section 11, Security – A discussion on the Security functions on the Switch, including Traffic Control, Port Security, Port Lock

Entries, 802.1X, Trusted Host, Access Authentication Control, Traffic Segmentation, SSL, SSH, IP MAC Binding, Limited IP
Multicast Range, Web-based Access Control, MAC-based Access Control and Safeguard Engine.

Section 12, Monitoring – Features information on Monitoring including Device Status, CPU Utilization, Safeguard Engine
Status, Port Utilization, Packets, Errors, Packet Size, Browse Router Port, Port Access Control, MAC Address Table, IP Address
Table, Browse Routing Table, Browse ARP Table, Browse IP Multicast Forwarding Table, IGMP Snooping Group, IGMP
Snooping Forwarding, Browse IGMP Group Table, DVMRP Monitor, PIM Monitor, OSPF Monitor, Browse WRED Status,
Browse PoE Status and Switch Log.

Appendix A, Technical Specifications - Technical specifications for the DES-3828, DES-3828P, DES-3828DC and the DES-

3852.

Appendix B, System Log Entries – A list of possible system log entries with a brief description.
Appendix C, Cables and Connectors - Describes the RJ-45 receptacle/connector, straight through and crossover cables and

standard pin assignments.

Appendix D, Console Cable Pin Assignment – A description of the pin assignment for the console cable.
Appendix E, Cable Lengths - Information on cable types and maximum distances.
Glossary - Lists definitions for terms and acronyms used in this document.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Intended Readers

The xStack DES-3800 Series User Manual contains information for setup and management of the Switch. The term, “the Switch”
will be used when referring to all three switches. This manual is intended for network managers familiar with network
management concepts and terminology.

Typographical Conventions

Convention Description

[ ]

Bold font

Boldface
Typewriter Font

Initial capital letter

Italics

Menu Name > Menu
Option

In a command line, square brackets indicate an optional entry. For example: [copy
filename] means that optionally you can type copy followed by the name of the file. Do not
type the brackets.

Indicates a button, a toolbar icon, menu, or menu item. For example: Open the File menu
and choose Cancel. Used for emphasis. May also indicate system messages or prompts
appearing on your screen. For example: You have mail. Bold font is also used to
represent filenames, program names and commands. For example: use the copy
command.

Indicates commands and responses to prompts that must be typed exactly as printed in
the manual.

Indicates a window name. Names of keys on the keyboard have initial capitals. For
example: Click Enter.

Indicates a window name or a field. Also can indicate a variables or parameter that is
replaced with an appropriate word or string. For example: type filename means that you
should type the actual filename instead of the word shown in italic.

Menu Name > Menu Option Indicates the menu structure. Device > Port > Port
Properties means the Port Properties menu option under the Port menu option that is

located under the Device menu.

Notes, Notices, and Cautions

A NOTE indicates important information that helps you make better use of your device.

A NOTICE indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.

A CAUTION indicates a potential for property damage, personal injury, or death.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Safety Instructions

Use the following safety guidelines to ensure your own personal safety and to help protect your system from potential damage.
Throughout this document, the caution icon ( ) is used to indicate cautions and precautions that you need to review and follow.

Safety Cautions

To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment, observe the following precautions.

• Observe and follow service markings.

• Do not service any product except as explained in your system documentation.

• Opening or removing covers that are marked with the triangular symbol with a lightning bolt may expose you to

electrical shock.

• Only a trained service technician should service components inside these compartments.

• If any of the following conditions occur, unplug the product from the electrical outlet and replace the part or contact your

trained service provider:

• The power cable, extension cable, or plug is damaged.

• An object has fallen into the product.

• The product has been exposed to water.

• The product has been dropped or damaged.

• The product does not operate correctly when you follow the operating instructions.

• Keep your system away from radiators and heat sources. Also, do not block cooling vents.

• Do not spill food or liquids on your system components, and never operate the product in a wet environment. If the system

gets wet, see the appropriate section in your troubleshooting guide or contact yo ur trained service provider.

• Do not push any objects into the openings of your system. Do ing so can cause fire or electric shock by shorting out interior
components.

• Use the product only with approved equipment.

• Allow the product to cool before removing covers or touching internal components.

• Operate the product only from the type of external power source indicated on the electrical ratings label. If you are not sure

of the type of power source required, consult your service provider or local power company.

• To help avoid damaging your system, be sure the voltage on the power supply is set to match the power available at your
location:

• 115 volts (V)/60 hertz (Hz) in most of North and South America and some Far Eastern countries such as South Korea and

Taiwan

• 100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japa n

• 230 V/50 Hz in most of Europe, the Middle East, and the Far East

• –48 VDC for DC power supply unit on DES-3828DC only

• Also, be sure that attached devices are electrically rated to operate with the power available in your location.

• Use only approved power cable(s). If you have not been provided with a power cable for your system or for any AC-

powered option intended for your system, purchase a power cable th at is approved for us e in your country. The power cable
must be rated for the product and for the voltage and current marked on the product's electrical ratings label. The voltage and
current rating of the cable should be greater than the ratings marked on the product.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

• To help prevent electric shock, plug the system and peripheral power cables into properly grounded electrical outlets. These
cables are equipped with three-prong plugs to help ensure proper grounding. Do not use adapter plugs or remove the
grounding prong from a cable. If you must use an extension cable, use a 3-wir e cable with prop erly grounded plugs.

• Observe extension cable and power strip ratings. Make su re that the total ampere rating of all products plugged into the
extension cable or power strip does not exceed 80 percent of the ampere ratings limit for the extension cable or power strip.

• To help protect your system from sudden, transient increases and decreases in electrical power, use a surge suppressor, line
conditioner, or uninterruptible power supply (UPS).

• Position system cables and power cables carefully; route cables so that they cannot be stepped on or tripped over. Be sure
that nothing rests on any cables.

• Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications. Always
follow your local/national wiring rules.

• When connecting or disconnecting power to hot-pluggable power supplies, if offered with your system, observe the
following guidelines:

• Install the power supply before connecting the power cable to the power supply.

• Unplug the power cable before removing the power supply.

• If the system has multiple sources of power, disconnect power from the system by unplugging all power cables from the

power supplies.

• Move products with care; ensure that all casters and/or stabilizers are firmly connected to the system. Avoid sudden stops
and uneven surfaces.

General Precautions for Rack-Mountable Products

Observe the following precautions for rack stability and safety. Also, refer to the rack installation documentation accompanying
the system and the rack for specific caution statements and procedures.

• Systems are considered to be components in a rack. Thus, "component" refers to any system as well as to various peripherals
or supporting hardware.

• Before working on the rack, make sure that the stabilizers are secured to the rack, extended to the floor, and that the full
weight of the rack rests on the floor. Install front and side stabilizers on a single rack or front stabilizers for joined multiple
racks before working on the rack.

• Always load the rack from the bottom up, and load the heaviest item in the rack first.

• Make sure that the rack is level and stable before extending a component from the rack.

• Use caution when pressing the component rail release latches and sliding a component into or out of a rack; the slide rails

can pinch your fingers.

• After a component is inserted into the rack, carefully extend the rail into a locking position, and then slide the component
into the rack.

• Do not overload the AC supply branch circuit that provides power to the rack. The total rack load should not exceed 80
percent of the branch circuit rating.

• Ensure that proper airflow is provided to components in the rack.

• Do not step on or stand on any component when servicing other components in a rack.

NOTE: A qualified electrician must perform all connections to DC power and to safety
grounds. All electrical wiring must comply with applicable local, regional or national codes
and practices.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

CAUTION: Never defeat the ground conductor or operate the equipment in the absence of a
suitably installed ground conductor. Contact the appropriate electrical inspection authority or
an electrician if you are uncertain that suitable grounding is available.

CAUTION: The system chassis must be positively grounded to the rack cabinet frame. Do
not attempt to connect power to the system until grounding cables are connected. A
qualified electrical inspector must inspect completed power and safety ground wiring. An
energy hazard will exist if the safety ground cable is omitted or disconnected.

CAUTION: Do not replace the battery with an incorrect type. The risk of explosion exists if
the replacement battery is not the correct lithium battery type. Dispose of used batteries
according to the instructions.

Protecting Against Electrostatic Discharge

Static electricity can harm delicate components inside your system. To prevent static damage, discharge static electricity from
your body before you touch any of the electronic components, such as the microprocessor. You can do so by periodically touching
an unpainted metal surface on the chassis.

You can also take the following steps to prevent damage from electrostatic discharge (ESD):

1. When unpacking a static-sensitive component from its shipping carton, do not remove the component from the antistatic
packing material until you are ready to install the component in your system. Just before unwrapping the antistatic
packaging, be sure to discharge static electricity from your body.

2. When transporting a sensitive component, first place it in an antistatic container or packaging.

3. Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads, workbench pads and an
antistatic grounding strap.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Section 1

Introduction

xStack DES-3800 Series
Gigabit Ethernet Technology
Switch Description
Features
Ports
Front-Panel Components
Side Panel Description
Rear Panel Description
Gigabit Combo Ports

xStack DES-3800 Series

The DES-3800 switch series is a member of the D-Link xStack switch family. xStack is a complete family of stackable devices
that ranges from edge 10/100Mbps switches to core Gigabit switches. xStack provides unsurpassed performance, fault tolerance,
scalable flexibility, robust security, standard-based interoperability and an impressive support for 10 Gigabit tech nology to future­proof departmental and enterprise network deployments with an easy migration path.

The following manual describes the installation, maintenan ce and configurations concerning members of the D-Link DES-3800
switch series, including the DES-3828, DES-3828P, DES-3828DC and the DES-3852. These four switches are identical in
configurations (except for PoE Functions on the DES-382 8P) and very similar in basic hardware and consequentiall y, most of the
information in this manual will be universal to the total group of Switches. Corresponding screen pictures of the web manager
may be taken from any one of these switches but the configuration will be identical, except for varying port counts. For the
remainder of this document, we will refer to the DES-3800 as the switch in question for examples, configurations and
explanations.

Gigabit Ethernet Technology

Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, format, and suppo rt for CSMA/CD
protocol, full duplex, flow control, and management objects, but with a tenfold increase in theoretical throughput over 100Mbps
Fast Ethernet and a one hundred-fold increase over 10Mbps Ethernet. Since it is compatible with all 10Mbps and 100Mbps Ether­net environments, Gigabit Ethernet provides a straightforward upgrade without wasting a company's existing investment in
hardware, software, and trained personnel.

The increased speed and extra bandwidth offered by Gigabit Ethernet are essential to coping with the network bottlenecks that
frequently develop as computers and their busses get faster and more users using applications that generate more traffic.
Upgrading key components, such as your backbone and servers to Gigabit Ethernet can greatly improve n etwork response times
as well as significantly speed up the traffic between your sub networks.

Gigabit Ethernet enables fast optical fiber connections to support video conferencing, complex imaging, and similar data-intensive
applications. Likewise, since data transfers occur 10 times faster than Fast Ethernet, servers outfitted with Gigabit Ethernet NIC's
are able to perform 10 times the number of operations in the same amount of time.

In addition, the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost-effective method to take advantage of today
and tomorrow's rapidly improving switching and routing internetworking technologies.

Switch Description

The Switch is equipped with unshielded twisted-pair (UTP) cable ports providing dedicated 10 or 100 Mbps bandwidth. The
Switch has twenty-four 10/100BASE-TX ports for the DES-3828, DES-3828P and DES-3828DC, and forty-eight 10/100BASE­TX ports for the DES-3852, all of which are Auto MDI-X/MDI-II convertible ports that can be used for uplinking to another
switch. These ports can be used for connecting PCs, printers, servers, hubs, routers, switches and other networking devices. The
dual speed ports use standard twisted-pair cabling and are ideal for segmenting networks into small, connected sub networks for
superior performance. Each 10/100 port can support up to 200 Mbps of throughput in full-duplex mode. In addition, the Switch

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

has two combo 1000 Base-T/SFP ports on the front panel and two 1000 Base-T ports on the back. These gigabit combo ports are
ideal for connecting to a server or network backbone. See the “Ports” section below for differences between the front and rear
Gigabit combo ports.

This Switch enables the network to use some of the most demanding multimedia and imaging applications concurrently with other
user applications without creating bottlenecks. The built-in console interface can be used to configure the Switch's settings for
priority queuing, VLANs, and port trunk groups, port monitoring, and port speed .

Features

• IEEE 802.3ad Link Aggregation Control Protocol support.

• IEEE 802.1x Port-based and MAC-based Access Control

• IEEE 802.1Q VLAN

• IEEE 802.1D Spanning Tree, IEEE 802.1W Rapid Spanning Tree and IEEE 802.1s Multiple Spanning Tree support

• Access Control List (ACL) support

• Single IP Management support

• Access Authentication Control utilizing TACACS, XTACACS and TACACS+

• Dual Image Firmware

• Simple Network Time Protocol support

• MAC Notification support

• System and Port Utilization support

• System Log Support

• Support port-based enable and disable

• Address table: Supports up to 16K MAC addresses per device

• Supports a packet buffer of up to 32M bytes

• Supports Port-based VLAN Groups

• Port Trunking with flexible load dist ri b uti o n and fail-over function

• IGMP Snooping support

• SNMP support

• Secure Sockets Layer (SSL) and Secure Shell (SSH) support

• Port Mirroring support

• WRED support

• Web-based Access Control

• MAC-Based Access Control

• MIB support for:

• RFC1213 MIB II

• RFC1493 Bridge

• RFC2819 RMON

• RFC2665 Ether-like MIB

• RFC2863 Interface MIB

• Private MIB

• RFC4363 for P,Q BRIDGE

• IEEE 802.1x MIB

• RFC1724 RIPv2

• RFC1850 OSPF

• RFC1907 SNMPv2

• RFC2021 RMON2

• RFC2906 IP-FORWARD

• RFC2571 SNMP-FRAMEWORK

• RFC2572 SNMP-MPD

• RFC2573 SNMP-TARGET

• RFC2574 SNMP-USER-BASED-SM

• RFC2575 SNMP-VIEW-BASED-ACM

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

• RFC2576 SNMP-COMMUNITY

• RFC2618 RADIUS-AUTH-CLIENT

• RFC2620 RADIUS-ACC- CLIENT

• RFC2787 VRRP

• RFC2863 IF

• RFC2932 IPMROUTE-STD

• RFC-2933 IGMP-STD

• RFC-2934 PIM

•

• IEEE 802.3x flow control in full duplex mode

• IEEE 802.1p Priority Queues

• IEEE 802.3u 100BASE-TX compliant

• RS-232 DCE console port for Switch ma nagement

• Provides parallel LED display for port status such as link/act, speed, etc.

• IEEE 802.3 10BASE-T compliant

• High performance switching engine performs forwarding and filtering at wire speed, maximum 14, 881 packets/sec on

each 10Mbps Ethernet port, and maximum 148,810 packet/sec on 100Mbps Fast Ethernet port.

• Full- and half-duplex for both 10Mbps and 100 Mbps connections. Full duplex allows the switch port to simultaneously

transmit and receive data. It only works with connections to full-duplex-capable end stations and switches. Connections
to a hub must take place at half-duplex

• Support broadcast storm filtering

• Non-blocking store and forward switching scheme capability to support rate adaptation and protocol conversion

• Supports by-port Egress/Ingress rate control.

• Efficient self-learning and address recognition mechanism enables forwarding rate at wire speed

Ports

The Switch provides twenty-four 10/100BASE-TX ports for the DES-3828, DES-3828P and DES-3828DC, and forty-eight
10/100BASE-TX ports for the DES-3852. All 10/100BASE-TX ports comply with the following standards:

• IEEE 802.3

• IEEE 802.3u

• Support Half/Full-Duplex operations

• All ports support Auto MDI-X/MDI-II cross over

• Support back pressure for Half-duplex mode

• IEEE 802.3x Flow Control support for Full-Duplex mode.

NOTE: On the DES-3828P, all twenty-four 10/100BASE-TX ports also
comply with the IEEE 802.3af Power over Ethernet standard.

The Switch provides two 1000 BASE-T/SFP combo ports on the front panel for all models. Both 1000 BASE-T ports comply with
the following standards:

• IEEE 802.3

• IEEE 802.3u

• IEEE 802.3ab

• Support Full-Duplex operations

• IEEE 802.3x Flow Control support for Full-Duplex mode

• IEEE 802.3z

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Both SFP ports support the following transceivers:

• DEM-310GT (1000BASE-LX)

• DEM-311GT (1000BASE-SX)

• DEM-314GT (1000BASE-LH)

• DEM-315GT (1000BASE-ZX)

The Switch provides two 1000 BASE-T ports on the rear panel. Both 1000BASE-T ports comply with the following standards:

• IEEE 802.3

• IEEE 802.3u

• IEEE 802.3ab

• Support Full-Duplex operations

• IEEE 802.3x Flow Control support for Full-Duplex mode

NOTE: The SFP combo ports on the Switch cannot be used simultaneously with the
corresponding 1000BASE-T ports. If both ports are in use at the same time (ex. port 25 of
the SFP and port 25 of the 1000BASE-T), the SFP ports will take priority over the combo
ports and render the 1000BASE-T ports inoperable.

Front-Panel Components

The front panel of the Switch provides twenty-four 10/100BAS E-TX ports for the DES-3 828, DES-3828P an d DES-3828DC, and
forty-eight 10/100BASE-TX ports for the DES-3852, two 1000 Base-T/SFP combo ports, and an RS-232 console port (for the
DES-3828, DES-3828P and DES-3828DC only). The DES-3828P also includ es a Mode Select button for ch anging the mod e from
Link/Act/State to PoE.

Figure 1- 1. Front Panel of the DES-3828

Figure 1- 2. Front Panel of the DES-3852

Figure 1- 3. Front Panel of the DES-3828P

Figure 1- 4. Front Panel of the DES-3828DC

DES-3828P LEDs

LED indicators display the status of the Switch and the network. The front panel of DES-3828P has LED indicators for power,
console, RPS, 27GE (rear port), 28 GE (rear port), Link/Act/Speed, PoE, for each of the twenty-four 10/100 Mbps Ethernet ports,
and for the two 1000BASE-T/SFP ports.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Figure 1- 5. Front Panel View of the DES-3828P

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

DES-3828/DES-3828DC LEDs

The front panel of DES-3828/DES-3828DC has LED indicators for power, console, RPS (DES-3 828 only), 27GE (rear port), 28
GE (rear port), for each of the twenty-four 10/100 Mbps Ethernet ports, and for the two 1000BASE-T/SFP ports.

Figure 1- 6. Front Panel View of the DES-3828DC

DES-3852 LEDs

The front panel of DES-3852 has LED indicators for power, console, RPS, port 49 GE, port 50 GE, port 51 GE (rear port), port 52
GE (rear port), for each of the forty-eight 10/100 Mbps Ethernet ports, and for the two 1000BASE-T/SFP ports.

Figure 1- 7. LED Indicators for the DES-3852

The following table describes the LEDs for DES-3828/DES-3828P/DES-3828DC/DES-3852:

LED Description

Power

Console Solid Green – Switch is being logged in to via the out-of-band/local console management

Off – Power Off
Solid Green – Power On

through the RS-232 console port
Blinking Green – POST is in progress

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

RPS (excluding DES­3828DC)

Ports 27, 28 GE
(DES-3828/DES­3828P/DES-3828DC)

Ports 51, 52 GE
(DES-3852)

Link/Act/Speed and
PoE (DES-3828P
only)

Off – RPS off
Solid green – RPS in use

Ports 27 and 28 (51 and 52) represent the 1000BASE-T ports located on the rear panel of
the Switch. These port LEDs will light two different colors for 100Mbps and 1000Mbps:

• Solid Green – Link for 1000Mbps

• Blinking Green – Activity for 1000Mbps

• Solid Amber – Link for 100Mbps

• Blinking Amber – Activity for 100Mbps

• Off – Link down

To change the LED mode from Link/Act/Speed to PoE and vice versa, press the LED Mode
Select Button. The Link/Act/Speed LED will light solid green when selected and will shut off
when PoE is selected. Likewise, when Link/Act/Speed is selected, the PoE LED shuts off
and the Link/Act/Speed LED lights solid green.

When this LED is in PoE mode, the corresponding port LED denote different meanings:

• Solid Green – Power is being used by a device connected to that port.

• Blinking Amber – There is a power error occurring on this port.

• Off – Power is not currently being fed through this port.

Ports 1-24 (1-48) One row of LEDs for each port is located above the ports on the front panel. The first LED is

for the top port and the second one is for the bottom ports. These port LEDs display the
following information:

For Link/Act/Speed Mode:

• Solid Green – Link for 100Mbps

• Blinking Green – Activity for 100Mbps

• Solid Amber – Link for 10Mbps

• Blinking Amber – Activity for 10Mbps

• Off – Link down

For PoE Mode: (DES-3828P only)

• Solid Green – Power feeding (802.3af-compliant PD was detected, legacy PD

detected)

• Blinking Amber – A blinking amber LED may signify any of the following: PoE port

ERROR (non-standard PD connected, Under load state according to 802.3af
(current is below I min), Overload state according to 802.3af (current is above I cut),
hardware problems preventing port operation, power budget exceeded, short
condition was detected at a port delivering power, temperature overload at the port,
succession of Underload and Overload states caused port shutdown (may be
caused by a PD’s DC/DC fault)...etc.)

• Off – No power feeding (no PD detected, or no connection)

Ports 25, 26 combo
GE (DES-3828/DES­3828P/DES-3828DC)

Ports 49, 50 combo
GE (DES-3852)

Ports 25 and 26 (49, 50) represent the 1000BASE-T/SFP ports located on the front panel of
the Switch. These port LEDs will display the following information:

• Solid Green – Link for 1000Mbps

• Blinking Green – Activity for 1000Mbps

• Solid Amber – Link for 100Mbps

• Blinking Amber – Activity for 100Mbps

• Off – Link down

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Rear Panel Description

The rear panels of DES-3828, DES-3828DC, DES-3828P and DES-3852 are described separately below.

DES-3828

The rear panel of DES-3828 contains ports 27 and 28, (1000 BASE-TX), an AC power connector, and an outlet for an optional
external RPS.

Figure 1- 8. Rear panel view of the DES-3828

For details on ports 27 and 28, see the “Ports” description above. The rear panel includes an outlet for an optional external
redundant power supply. When power fails, the optional extern al RPS will take ov er all the power immediately an d au tomatically.
The AC power connector is a standard three-pronged connector th at supports the power cord. Plug-in the female conn ector of the
provided power cord into this socket, and the male sid e of the co rd into a power outlet. The Switch automatically adj usts its power
setting to any supply voltage in the range from 100 ~ 240 VAC at 50 ~ 60 Hz.

DES-3828P

The rear panel of DES-3828P contain s ports 27 and 28, (1000BASE- TX), a heat vent, an AC pow er connector, and an outlet for
an optional external RPS.

Figure 1- 9. Rear Panel view of DES-3828P

For details on ports 27 and 28, see the “Ports” d escription above. The rear panel includes a heat vent for the system fan. The
system fan is used to dissipate heat. Do not block this opening, and leave at least 6 inches of space at the rear of the Switch for
proper ventilation. Be reminded that without proper heat dissipation and air circulation, system components might overheat, which
could lead to system failure. The rear panel also includes an outlet for an optional external redundant power supply. When power
fails, the optional external RPS will take over all the power immediately and automatically. The AC power connector is a standard
three-pronged connector that supports the power cord. Plug-in th e female connector of the provided power cord into this sock et,
and the male side of the cord into a power outlet. The Switch automatically adjusts its power settin g to any supply voltage in the
range from 100 ~ 240 VAC at 50 ~ 60 Hz. The maximum output capacity for PoE is 370W. The def ault power feed for PoE is set
at 15.4W per port, but can be set from 1-16.8W per port. See the PoE Configuration in Section 6 for instructions on how to change
this setting.

DES-3828DC

Figure 1- 10. Rear panel view of DES-3828DC

The rear panel of the DC power version of the Switch includes ports 27 and 28, (1000BASE-TX), and an opening designed to
accommodate the DC power wiring assembly. See the installation instructions in Section 2 for details.

DES-3852

The rear panel of the DES-3852 contains ports 51 and 52, (1 000BASE-TX) , an AC power connector, an RS-232 conso le port and
an outlet for an optional external RPS.

Figure 1- 11. Rear Panel of the DES-3852

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Side Panel Description

The right-hand side panel of the Switch contains a system fan and ventilation along the entire right side. The left hand panel
includes a system fan and a heat vent. The system fans are used to dissipate heat. Do not block these openings on either side of the
Switch. Leave at least 6 inches of space at the rear and sides of the Switch for proper ventilation. Be reminded that without proper
heat dissipation and air circulation, system components might overheat, which could lead to system failure.

Figure 1- 12. Side Panels

Gigabit Ports

In addition to the twenty-four (forty-eight for DES-3852) 10/100 Mbps ports, the Switch features two 1000BASE-T/SFP Gigabit
Ethernet Combo ports on the front panel, and two 1000BASE-T copper ports on the rear panel. The diagra ms below show Gigabit
ports 25 and 26 (49 and 50) on the far right of the front panel. Gigabit ports 27 and 28 (51 and 52) are on the far left of the rear
panel. Please note that PoE is not supported for any Gigabit Ethernet ports.

Figure 1- 13. Front Panel Mini-GBIC ports

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

SECTION 2

Installation

Package Contents
Before You Connect to the Network
Installing the Switch without the Rack
Rack Installation
Power On
Connecting DC Power to DES-3828DC
RPS Installation

Package Contents

Open the shipping carton of the Switch and carefully unpack its contents. The carton should contain the following items:

• One Stand-alone Switch

• One AC power cord (excluding DES-3828DC)

• This Manual on CD

• Mounting kit (two brackets and screws)

• Four rubber feet with adhesive backing

• RS-232 console cable

If any item is missing or damaged, please contact your local D-Link Reseller for replacement.

Before You Connect to the Network

The site where users install the Switch may greatly affect its performance. Please follow these guidelines for setting up the Switch.

• Install the Switch on a sturdy, level surface that can support at least 4.24kg (9.35lbs) of weight for DES-3828/DES-

3828DC/DES-3852, or 6.02kg (13.27lbs) for DES-3828P. Do not place heavy objects on the Switch.

• The power outlet should be within 1.82 m e t e rs (6 feet) of the Swit ch .

• Visually inspect the power cord and see that it is fully secured to the AC/DC power port.

• Make sure that there is proper heat dissipation from and adequate ventilation around the Switch. Leave at least 10 cm (4

inches) of space at the front and rear of the Switch for ventilation.

• Install the Switch in a fairly cool and dry place for the acceptable temperature and humidity operating ranges.

• Install the Switch in a site free from strong electromagnetic field generators (such as motors), vibration, dust, and direct

exposure to sunlight.

• When installing the Switch on a level surface, attach the rubber feet to the bottom of the device. The rubber feet cushion

the Switch, protect the casing from scratches and prevent it from scratching other surfaces.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Installing the Switch without the Rack

When installing the Switch on a desktop or shelf, the rubber feet included with the Switch should first be attached. Attach the se
cushioning feet on the bottom at each corner of the device. Allow enough ventilation space between the Switch and any other
objects in the vicinity.

Figure 2 - 1. Prepare Switch for installation on a desktop or shelf

Installing the Switch in a Rack

The Switch can be mounted in a standard 19" rack. Use the following diagrams to guide you.

Figure 2 - 2. Fasten mounting brackets to Switch

Fasten the mounting brackets to the Switch using the screws provided. With the brackets attached securely, users can mount the
Switch in a standard rack as shown in Figure 2-3 below.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Mounting the Switch in a Standard 19" Rack

CAUTION: Installing systems in a rack without the front and side stabilizers installed could cause the

rack to tip over, potentially resulting in bodily injury under certain circumstances. Therefore, always
install the stabilizers before installing components in the rack. After installing components in a rack, do
not pull more than one component out of the rack on its slide assemblies at one time. The weight of
more than one extended component could cause the rack to tip over and may result in injury.

Figure 2 - 3. Installing Switch in a rack

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Connecting DC Power to the DES-3828DC

Follow the instructions below to connect the DC power supply of the DES-3828DC to the DC power source.

Figure 2 - 5. Power connections attached to contacts after assembly

1. Firmly attach the DC power to the negative and positive contacts on the wiring assembly.

• The negative pole (-) connects to the -48V contact.

• The positive pole (+) connects to the -48V Return contact.

• If available, an earth ground may be connected to the center contact post.

2. Tighten the contact screws to secure the connection.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

RPS Installation

Follow the instructions below to connect an RPS power supply to the Switch (DPS-200 to DES-3828/DES-3852 or DPS-600 to
DES-3828P). The DPS-200 is a redundant power-supply unit designed to conform to the voltage requirements of the switches
being supported. DPS-200 can be installed into DPS-900, or DPS-800.

CAUTION: The AC power cord for the Switch should be disconnected before proceeding

with installation of the DPS-200.

DPS-900

The DPS-900 is a standard-size rack mount (5 standard units in height) designed to hold up to eight DPS-200 redundant power
supplies.

Figure 2 - 6. Installing the DPS-200 into the DPS-900

The RPS can be mounted in a standard 19" rack. Use the following diagram to guide you.

Figure 2 - 7. Installing the DPS-900 into the equipment rack

CAUTION: Installing systems in a rack without the front and side stabilizers installed could cause the

rack to tip over, potentially resulting in bodily injury under certain circumstances. Therefore, always
install the stabilizers before installing components in the rack. After installing components in a rack, do
not pull more than one component out of the rack on its slide assemblies at one time. The weight of
more than one extended component could cause the rack to tip over and may result in injury.

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

DPS-800

The DPS-800 is a standard-size rack mount (1 standard unit in height) designed to hold up to two DPS-200 redundant power
supplies.

Figure 2 - 8. Install DPS-200 in DPS-800

The RPS can be mounted in a standard 19" rack. Use the following diagram to guide you.

Figure 2 - 9. Install DPS-800 in an Equipment Rack

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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

Connect to RPS

The DPS-200 is connected to the Master Switch using a 14-pin DC power cable. A standard, three-pronged AC power cable
connects the redundant power supply to the main power source.

Figure 2 - 10. The DES-3828 with the DPS-200 chassis RPS

1. Insert one end of the 14-pin DC power cable into the receptacle on th e Switch and the other end into the redundant power
supply.

2. Using a standard AC power cable, connect the redundant power supply to the main AC power source. A green LED on the
front of the DPS-200 will glow to indicate a successful connection.

3. Re-connect the switch to the AC power source. On certain switches, such as the DES-3828, an LED indicator will show that a
redundant power supply is now in operation.

4. No change in switch configuration is necessary for this installation.

NOTE: See the DPS-200 documentation for more information.

CAUTION: Do not use the Switch with any redundant power system other

than the DPS-200 or DPS-600.

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