Edgewater Networks EdgeConnect 2402PoE User manual

EdgeConnect
2402PoE LF Managed
Ethernet Switch
Installation Guide
Version 1.0
U.S. Headquarters:
2895 Northwestern Parkway
Santa Clara, CA 95051
Phone: [phone]
Fax: [phone]
www.edgewaternetworks.com
EWN005-05-D001

© 2010 Edgewater Networks, Inc.
Edgewater Confidential, All Rights Reserved.
This document is protected by copyright and distributed under licenses restricting its use, copying,
distribution, and decompilation. No part of this document may be reproduced in any form by any means
without prior written authorization of Edgewater Networks, Inc. Documentation is provided “as is” without
warranty of any kind, either express or implied, including any kind of implied or express warranty of non-
infringement of the implied warranties of merchantability or fitness for a particular purpose.
WARRANTY AND REPAIR SERVICE CENTER:
Interwork Technologies
Bill Dunnion
[email protected]
[phone]
This Class (A) digital apparatus complies with Canadian ICES-003.
Licensing Use of this product is subject to Edgewater Networks Software License Agreement.
Portions of this product include software sponsored by the Free Software Foundation and are covered by
the GNU GENERAL PUBLIC LICENSE.
See the VOS for EdgeMarc User Manual for more information regarding licenses.
Release Date: 11 November 2009

vii
Compliances and Safety Warnings
FCC - Class A
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
You are cautioned that changes or modifications not expressly approved by the party
responsible for compliance could void your authority to operate the equipment.
You may use unshielded twisted-pair (UTP) for RJ-45 connections - Category 3 or better
for 10 Mbps connections, Category 5 or better for 100 Mbps connections, Category 5, 5e,
or 6 for 1000 Mbps connections. For fiber optic connections, you may use 50/125 or 62.5/
125 micron multimode fiber or 9/125 micron single-mode fiber.
Industry Canada - Class A
This digital apparatus does not exceed the Class A limits for radio noise emissions from
digital apparatus as set out in the interference-causing equipment standard entitled
“Digital Apparatus,” ICES-003 of the Department of Communications.
Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux
appareils numériques de Classe A prescrites dans la norme sur le matériel brouilleur:
“Appareils Numériques,” NMB-003 édictée par le ministère des Communications.
Japan VCCI Class A
PSE Alarm

viii
CE Mark Declaration of Conformance for EMI and Safety (EEC)
This information technology equipment complies with the requirements of the Council
Directive 89/336/EEC on the Approximation of the laws of the Member States relating to
Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain
voltage limits and the Amendment Directive 93/68/EEC. For the evaluation of the
compliance with these Directives, the following standards were applied:
Caution: Do not plug a phone jack connector in the RJ-45 port. This may damage this
device.
Attention: Les raccordeurs ne sont pas utilisés pour le système téléphonique!
RFI Emission: • Limit class A according to EN 55022:1998
• Limit class A for harmonic current emission according to EN 61000-3-2/1995
• Limitation of voltage fluctuation and flicker in low-voltage supply system
according to EN 61000-3-3/1995
Immunity: • Product family standard according to EN 55024:1998
• Electrostatic Discharge according to EN 61000-4-2:1995
(Contact Discharge: ±4 kV, Air Discharge: ±8 kV)
• Radio-frequency electromagnetic field according to EN 61000-4-3:1996
(80 - 1000 MHz with 1 kHz AM 80% Modulation: 3 V/m)
• Electrical fast transient/burst according to EN 61000-4-4:1995 (AC/DC power
supply: ±1 kV, Data/Signal lines: ±0.5 kV)
• Surge immunity test according to EN 61000-4-5:1995
(AC/DC Line to Line: ±1 kV, AC/DC Line to Earth: ±2 kV)
• Immunity to conducted disturbances, Induced by radio-frequency fields:
EN 61000-4-6:1996 (0.15 - 80 MHz with 1 kHz AM 80% Modulation: 3 V/m)
• Power frequency magnetic field immunity test according to
EN 61000-4-8:1993
(1 A/m at frequency 50 Hz)
• Voltage dips, short interruptions and voltage variations immunity test
according to EN 61000-4-11:1994 (>95% Reduction @10 ms, 30%
Reduction @500 ms, >95% Reduction @5000 ms)
LVD: • EN 60950-1:2001

ix
Safety Compliance
Warning: Fiber Optic Port Safety
Power Cord Safety
Please read the following safety information carefully before installing
the switch:
WARNING: Installation and removal of the unit must be carried out by qualified personnel
only.
• The unit must be connected to an earthed (grounded) outlet to comply with international
safety standards.
• Do not connect the unit to an A.C. outlet (power supply) without an earth (ground)
connection.
• The appliance coupler (the connector to the unit and not the wall plug) must have a
configuration for mating with an EN 60320/IEC 320 appliance inlet.
• The socket outlet must be near to the unit and easily accessible. You can only remove
power from the unit by disconnecting the power cord from the outlet.
• This unit operates under SELV (Safety Extra Low Voltage) conditions according to
IEC 60950. The conditions are only maintained if the equipment to which it is connected
also operates under SELV conditions.
France and Peru only
This unit cannot be powered from IT† supplies. If your supplies are of IT type, this unit
must be powered by 230 V (2P+T) via an isolation transformer ratio 1:1, with the
secondary connection point labelled Neutral, connected directly to earth (ground).
† Impédance à la terre
Important!Before making connections, make sure you have the correct cord set. Check it
(read the label on the cable) against the following:
When using a fiber optic port, never look at the transmit laser while it is
powered on. Also, never look directly at the fiber TX port and fiber cable
ends when they are powered on.
Power Cord Set
U.S.A. and Canada The cord set must be UL-approved and CSA certified.
The minimum specifications for the flexible cord are:
- No. 18 AWG - not longer than 2 meters, or 16 AWG.
- Type SV or SJ
- 3-conductor
The cord set must have a rated current capacity of at least 10 A
The attachment plug must be an earth-grounding type with NEMA
5-15P (15 A, 125 V) or NEMA 6-15P (15 A, 250 V) configuration.
Denmark The supply plug must comply with Section 107-2-D1, Standard
DK2-1a or DK2-5a.

x
Warnings and Cautionary Messages
Switzerland The supply plug must comply with SEV/ASE 1011.
U.K. The supply plug must comply with BS1363 (3-pin 13 A) and be fitted
with a 5 A fuse which complies with BS1362.
The mains cord must be <HAR> or <BASEC> marked and be of type
HO3VVF3GO.75 (minimum).
Europe The supply plug must comply with CEE7/7 (“SCHUKO”).
The mains cord must be <HAR> or <BASEC> marked and be of type
HO3VVF3GO.75 (minimum).
IEC-320 socket.
Warning: This product does not contain any serviceable user parts.
Warning: Installation and removal of the unit must be carried out by qualified
personnel only.
Warning: When connecting this device to a power outlet, connect the field ground lead
on the tri-pole power plug to a valid earth ground line to prevent electrical
hazards.
Warning: This switch uses lasers to transmit signals over fiber optic cable. The lasers
are compliant with the requirements of a Class 1 Laser Product and are
inherently eye safe in normal operation. However, you should never look
directly at a transmit port when it is powered on.
Caution: All interconnecting LAN cables and devices receiving PoE (Power over
Ethernet) power from a switch must be contained within the same building.
Caution: Do not plug a phone jack connector in the RJ-45 port. This may damage this
device. Les raccordeurs ne sont pas utilisé pour le système téléphonique!
Caution: Use only twisted-pair cables with RJ-45 connectors that conform to FCC
standards.
Caution: Wear an anti-static wrist strap or take other suitable measures to prevent
electrostatic discharge when handling this equipment.
Power Cord Set

xi
Environmental Statement
The manufacturer of this product endeavours to sustain an environmentally-friendly policy
throughout the entire production process. This is achieved though the following means:
• Adherence to national legislation and regulations on environmental production
standards.
• Conservation of operational resources.
• Waste reduction and safe disposal of all harmful un-recyclable by-products.
• Recycling of all reusable waste content.
• Design of products to maximize recyclables at the end of the product’s life span.
• Continual monitoring of safety standards.
End of Product Life Span
This product is manufactured in such a way as to allow for the recovery and disposal of all
included electrical components once the product has reached the end of its life.
Manufacturing Materials
There are no hazardous nor ozone-depleting materials in this product.
Documentation
All printed documentation for this product uses biodegradable paper that originates from
sustained and managed forests. The inks used in the printing process are non-toxic.
Related Publications
The following publication gives specific information on how to operate and use the
management functions of the switch:
The Management Guide
Also, as part of the switch’s firmware, there is an online web-based help that describes all
management related features.

xv
T ABLE OF C ONTENTS
1 About the !"#$%&''$() . . . . . . . . . . . . . . . . . . . . . . . .1-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Switch Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Power-over-Ethernet Capability . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Network Management Options . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Description of Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
10/100BASE-T Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
SFP Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Port and System Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Power Supply Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Expandability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
2 Network Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Introduction to Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Supplying PoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Collapsed Backbone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Network Aggregation Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Remote Connection with Fiber Cable . . . . . . . . . . . . . . . . . . . . . 2-5
Making VLAN Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
3 Installing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Selecting a Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Ethernet Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Equipment Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Optional Rack-Mounting Equipment . . . . . . . . . . . . . . . . . . . . . 3-3
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Desktop or Shelf Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

T ABLE OF C ONTENTS
xvi
Installing an Optional SFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Connecting to a Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Connecting to the Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Wiring Map for Serial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
4 Making Network Connections . . . . . . . . . . . . . . . . . . . 4-1
Connecting Network Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Twisted-Pair Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Power-over-Ethernet Connections . . . . . . . . . . . . . . . . . . . . . . . 4-2
Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Connecting to PCs, Servers, Hubs and Switches . . . . . . . . . . . . 4-3
Network Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Fiber Optic SFP Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Connectivity Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
1000BASE-T Cable Requirements . . . . . . . . . . . . . . . . . . . . . . . 4-8
1000 Mbps Gigabit Ethernet Collision Domain . . . . . . . . . . . . . 4-9
100 Mbps Fast Ethernet Collision Domain . . . . . . . . . . . . . . . 4-10
10 Mbps Ethernet Collision Domain . . . . . . . . . . . . . . . . . . . . 4-10
Cable Labeling and Connection Records . . . . . . . . . . . . . . . . . . . . . . . 4-11
A Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
Diagnosing Switch Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Power and Cooling Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
In-Band Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
B Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1
Twisted-Pair Cable and Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . B-1
10/100BASE-TX Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . B-2
Straight-Through Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
1000BASE-T Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . B-5
Cable Testing for Existing Category 5 Cable . . . . . . . . . . . . . . . B-5
C Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
Physical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Switch Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

T ABLE OF C ONTENTS
xvii
Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Compliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Glossary
Index

xviii
T ABLES
Table 1-1 Port Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Table 1-2 System Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Table 3-1 Serial Cable Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length . . 4-9
Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Length 4-9
Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length 4-9
Table 4-4 Maximum 1000BASE-ZX Gigabit Ethernet Cable Length 4-9
Table 4-5 Maximum Fast Ethernet Cable Length . . . . . . . . . . . . . . . 4-10
Table 4-6 Maximum Ethernet Cable Length . . . . . . . . . . . . . . . . . . . 4-10
Table A-1 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table B-1 10/100BASE-TX MDI-X and MDI Port Pinouts . . . . . . . B-2
Table B-2 1000BASE-T MDI and MDI-X Port Pinouts . . . . . . . . . . . B-5
Table D-1 2402PoE LF Products and Accessories . . . . . . . . . . . . . . . . .D-1

xix
F IGURES
Figure 1-1 Front and Rear Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Figure 1-2 Port Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Figure 1-3 System Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Figure 1-4 Power Supply Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Figure 2-1 PoE Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Figure 2-2 Collapsed Backbone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Figure 2-3 Network Aggregation Plan . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Figure 2-4 Remote Connection with Fiber Cable . . . . . . . . . . . . . . . 2-5
Figure 2-5 Making VLAN Connections . . . . . . . . . . . . . . . . . . . . . . . 2-6
Figure 3-1 RJ-45 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Figure 3-2 Attaching the Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Figure 3-3 Installing the Switch in a Rack . . . . . . . . . . . . . . . . . . . . . 3-5
Figure 3-4 Attaching the Adhesive Feet . . . . . . . . . . . . . . . . . . . . . . . 3-6
Figure 3-5 Inserting an SFP Transceiver into a Slot . . . . . . . . . . . . . 3-7
Figure 3-6 Power Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Figure 3-7 Serial Port (DB-9 DTE) Pin-Out . . . . . . . . . . . . . . . . . . . 3-9
Figure 4-1 Making Twisted-Pair Connections . . . . . . . . . . . . . . . . . . 4-3
Figure 4-2 Network Wiring Connections . . . . . . . . . . . . . . . . . . . . . . 4-5
Figure 4-3 Making Fiber Port Connections . . . . . . . . . . . . . . . . . . . . 4-7
Figure B-1 RJ-45 Connector Pin Numbers . . . . . . . . . . . . . . . . . . . . B-1
Figure B-2 Straight-through Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Figure B-3 Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

xx

1-1
Chapter 1: Introduction
Overview
The 2402PoE LF switch features 24 10/100BASE-T ports, two 10/100/1000BASE-T
ports, and two Gigabit combination ports1 that are comprised of an RJ-45 port and
an SFP transceiver slot. There is also an SNMP-based management agent
embedded on the main board. This agent supports both in-band and out-of-band
access for managing the switch.
The switch provides a broad range of powerful features for Layer 2 switching,
delivering reliability and consistent performance for your network traffic. They bring
order to poorly performing networks by segregating them into separate broadcast
domains with IEEE 802.1Q compliant VLANs, and empower multimedia applications
with multicast switching and CoS services.
Figure 1-1 2402PoE LF Panels
1. RJ-45 ports shared with a SFP tranceiver slots. If an SFP transceiver is plugged in, the
corresponding RJ-45 port is disabled.
SMC6128PL2
TigerSwitch 10/100
25 27
26 28 27 28
25 27
26 28
Link/Act
System
RATING
100~240V-
3A 50~60HZ
10/100 Mbps RJ-45 Ports
Port Status Indicators
1000BASE-T/SFP Ports
System Indicator
Power Socket Console Port

1-2
Switch Architecture
The switch employs a wire-speed, non-blocking switching fabric. This
permits simultaneous wire-speed transport of multiple packets at low latency
on all ports. The switch also features full-duplex capability on all ports,
which effectively doubles the bandwidth of each connection.
The switch uses store-and-forward switching to ensure maximum data
integrity. With store-and-forward switching, the entire packet must be
received into a buffer and checked for validity before being forwarded. This
prevents errors from being propagated throughout the network.
Power-over-Ethernet Capability
The switch’s 24 10/100 Mbps ports support the IEEE 802.3af
Power-over-Ethernet (PoE) standard that enables DC power to be supplied
to attached devices using wires in the connecting Ethernet cable. Any 802.3af
compliant device attached to a port can directly draw power from the switch
over the Ethernet cable without requiring its own separate power source.
This capability gives network administrators centralized power control for
devices such as IP phones and wireless access points, which translates into
greater network availability.
For each attached 802.3af-compliant device, the switch automatically senses
the load and dynamically supplies the required power. The switch delivers
power to a device using the two data wire pairs in UTP or STP. Each port can
provide up to 15.4 W of power at the standard -48 VDC voltage.
Independent overload and short-circuit protection for each port allows the
switch to automatically shut down a port’s power when limits are exceeded.
Network devices such as IP phones, wireless access points, and network
cameras, typically consume less than 10 W of power, so they are ideal for
Power-over-Ethernet applications.

D ESCRIPTION OF H ARDWARE
1-3
Network Management Options
The switch contains a comprehensive array of LEDs for “at-a-glance”
monitoring of network and port status. It also includes a management
agent that allows you to configure or monitor the switch using its embedded
management software, or via SNMP applications. To manage a switch, you
can make a direct connection to the RS-232 console port (out-of-band), or
you can manage it through a network connection (in-band) using Telnet, the
on-board Web agent, or Windows-based network management software.
For a detailed description of the switch’s advanced features, refer to the
!"#$%&''$()*+,-+.&! /0*Management Guide.
Description of Hardware
10/100BASE-T Ports
The PoE switch base unit contains 24 10BASE-T/100BASE-TX RJ-45
ports. All ports support automatic MDI/MDI-X operation, so you can use
straight-through cables for all network connections to PCs or servers, or to
other switches or hubs. (See “10/100BASE-TX Pin Assignments” on page
B-2.)
Each of these ports support auto-negotiation, so the optimum transmission
mode (half or full duplex), and data rate (10 or 100 Mbps) can be selected
automatically. If a device connected to one of these ports does not support
auto-negotiation, the communication mode of that port can be configured
manually.
Each port also supports IEEE 802.3x auto-negotiation of flow control, so
the switch can automatically prevent port buffers from becoming saturated.
SFP Slots
The Small Form Factor Pluggable (SFP) transceiver slots are shared with two
of the RJ-45 ports. In its default configuration, if an SFP transceiver
(purchased separately) is installed in a slot and has a valid link on its port, the
associated RJ-45 port is disabled and cannot be used. The switch can also be
configured to force the use of an RJ-45 port or SFP slot, as required.

1-4
Port and System Status LEDs
The LEDs, which are located on the front panel for easy viewing, are shown
below and described in the following table.
Figure 1-2 Port Status LEDs
Table 1-1 Port Status LEDs
LED Condition Status
RJ-45 Ports
Link/ACT
(Link/
Activity)
On/Blinking
Green
The port has a valid 100 Mbps link. Blinking
indicates activity.
On/Blinking
Amber
The port has a valid 10 Mbps link. Blinking
indicates activity.
Off There is no valid link on the port.
Gigabit/Combination Ports
Upper LED On/Blinking
Green
The port has a valid 10/100 Mbps link. Blinking
indicates activity.
Off There is no valid link on the port.
Lower LED On/Blinking
Amber
The port has a valid 1000 Mbps link. Blinking
indicates activity.
Off There is no valid link on the port.
25 27
26 28
Link/Act
System
Port Status LEDs Combination Gigabit Port Status LEDs

D ESCRIPTION OF H ARDWARE
1-5
Figure 1-3 System Status LED
Table 1-2 System Status LED
LED Condition Status
System On Green Internal power is operating normally.
On Amber Internal power supply has failed.
Off Power off or failure.
25 27
26 28
Link/Act
System
System Status LED

1-6
Power Supply Sockets
There is one standard power socket on the rear panel of the switch for the
AC power cord.
Figure 1-4 Power Supply Sockets
Features and Benefits
Connectivity
• 24 10/100BASE-T ports plus 2 Gigabit combination ports (RJ-45/SFP)
and 2 Gigabit 1000BASE-T ports.
• Auto-negotiation enables each RJ-45 port to automatically select the
optimum speed (10 or 100 Mbps), and the communication mode (half or
full duplex) if this feature is supported by the attached device; otherwise
the port can be configured manually.
• Independent RJ-45 10/100BASE-T ports with auto MDI/MDI-X
pinout selection.
• Unshielded (UTP) cable supported on all RJ-45 ports: Category 3, 4 or 5
for 10 Mbps connections, Category 5 for 100 Mbps connections, and
Category 5 or better for 1000 Mbps connections.
• IEEE 802.3-2005 Ethernet, Fast Ethernet, Gigabit Ethernet compliance
ensures compatibility with standards-based hubs, network cards and
switches from any vendor.
RATING
100~240V-
3A 50~60HZ
Power Socket Console Port

F EATURES AND B ENEFITS
1-7
Expandability
• 2 Small Form Factor Pluggable (SFP) transceiver slots (shared with
1000BASE-T ports)
• Supports 1000BASE-SX and 1000BASE-LX, 1000BASE-ZX and other
SFP-compatible transceivers.
Performance
• Transparent bridging
• Switching table with a total of 8K MAC address entries
• Provides store-and-forward switching
• Supports wire-speed filtering and forwarding
• Supports flow control, using back pressure for half duplex and IEEE
802.3x for full duplex
• Broadcast storm control
Management
• “At-a-glance” LEDs for easy troubleshooting
• Network management agent:
• Manages switch in-band or out-of-band
• Supports Telnet, SNMP/RMON and Web-based interface