SMC Networks SMCGS1601, SMCGS2401 User Manual

USER GUIDE

EZ SwitchTM 10/100/1000 Mbps
16/24-Port Unmanaged Gigabit Ethernet Switches

SMCGS1601/SMCGS2401

EZ Switch

TM

10/100/1000

User Guide

From SMC’s EZ line of low-cost workgroup LAN solutions

20 Mason
Irvine, CA 92618
Phone: [phone]

April 2011

150200000312A

SMC-IG-0411-01

Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate
and reliable. However, no responsibility is assumed by SMC for its use, nor for
any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent
or patent rights of SMC. SMC reserves the right to change specifications at any
time without notice.

Copyright © 2011 by

SMC Networks, Inc.

20 Mason

Irvine, CA 92618

All rights reserved

Trademarks:

SMC is a registered trademark; and EZ Switch, TigerStack and TigerSwitch are
trademarks of SMC Networks, Inc. Other product and company names are
trademarks or registered trademarks of their respective holders.

W

ARRANTY AND PRODUCT REGISTRATION

To register SMC products and to review the detailed warranty statement, please
refer to the Support Section of the SMC Website at http://www.smc.com.

– 4 –

COMPLIANCES AND SAFETY
STATEMENTS

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.

This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions:

◆ This device may not cause harmful interference.

◆ This device must accept any interference received, including interference

that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.

CE MARK DECLARATION OF CONFORMANCE FOR EMI AND SAFETY (EEC)

This is a class A product. In a domestic environment, this product may cause
radio interference, in which case the user may be required to take adequate
measures.

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C

OMPLIANCES AND SAFETY STATEMENTS

– 6 –

ABOUT THIS GUIDE

PURPOSE

This guide details the hardware features of the switch, including the physical and
performance-related characteristics, and how to install the switch.

AUDIENCE

The guide is intended for use by network administrators who are responsible for
installing and setting up network equipment; consequently, it assumes a basic
working knowledge of LANs (Local Area Networks).

CONVENTIONS

The following conventions are used throughout this guide to show information:

N

OTE

:

Emphasizes important information or calls your attention to

related features or instructions.

C

AUTION

:

Alerts you to a potential hazard that could cause loss of data,

or damage the system or equipment.

W

ARNING

:

Alerts you to a potential hazard that could cause personal

injury.

REVISION HISTORY

This section summarizes the changes in each revision of this guide.

APRIL 2011 REVISION

This is the first revision of this guide.

– 7 –

A

BOUT THIS GUIDE

– 8 –

CONTENTS

WARRANTY AND PRODUCT REGISTRATION 4

C

OMPLIANCES AND SAFETY STATEMENTS 5

A

BOUT THIS GUIDE 7

C

ONTENTS 9

1I

NTRODUCTION 11

Overview 11

Features 11

IEEE 802.1p QoS 12

2HARDWARE DESCRIPTION 15

Front Panel 15

Port and System Status LEDs 15

RJ-45 Ports 16

Rear Panel 16

Grounding Terminal 16

AC Power Socket 17

3INSTALLING THE SWITCH 19

Package Contents 19

Precautions 20

Safety Requirements 20

Location Requirements 20

Installation 21

Desktop Installation 21

Rack Installation 22

Connecting to Ground 23

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C

ONTENTS

Powering On 25

Connecting Network Devices 26

Cabling Guidelines 26

Connecting to PCs, Servers, Hubs and Switches 26

ATROUBLESHOOTING 27

Diagnosing Switch Indicators 27

The Power LED is Off 27

The Link/Act LED is Off when a Device is Connected to the Corre­sponding Port 27

Power and Cooling Problems 27

Installation 28

BSPECIFICATIONS 29

Physical Characteristics 29

– 10 –

1 INTRODUCTION

OVERVIEW

The SMCGS1601 and SMCGS2401switches provide you with a high­performance, low-cost, ease-of-use, seamless, and standard upgrade that
boosts your old network to 1000 Mbps. Increase the speed of your network
server and backbone connections make Gigabit a reality. Power users in the
home, office, workgroup, or creative production environment, can now move
large, bandwidth-intensive files faster. Transfer graphics, CGI, CAD, multimedia,
and other large files across the network almost instantly.

The SMCGS1601 and SMCGS2401switches feature a non-blocking switching
architecture that forwards and filters packets at full wire-speed for maximum
throughput. The switches are compatible with all 10, 100, and 1000 Mbps
Ethernet devices because they are standard-based. The switches protect your
existing network investments while providing you with a straightforward
migration path to faster Gigabit speeds.

The SMCGS1601 and SMCGS2401switches are plug-and-play devices; no
configuration is required. Auto MDI/MDI-X cable detection on all ports eliminates
the need for crossover cables. Each port can be used as an end-node or uplink
port, and any port can be simply plugged into a server, hub, router, or switch,
using straight-through or crossover cable. Diagnostic LEDs, which display link
status and activity, allow you to quickly detect and correct problems on the
network.

FEATURES

◆ Complies with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab standards.

◆ 16/24 10/100/1000 Mbps auto-sensing RJ-45 ports supporting Auto-MDI/

MDIX.

◆ All ports support full/half-duplex transfer mode for 10/100 Mbps and full-

duplex transfer mode for 1000 Mbps.

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Overview

| Introduction

◆ Supports IEEE 802.3x flow control for full-duplex mode and backpressure

for half-duplex transfer mode.

◆ Non-blocking switching architecture that forwards and filters packets at full

wire-speed for maximum throughput.

◆ Supports MAC address auto-learning and auto-aging.

◆ The SMCGS1601 supports IEEE P802.3az Energy-Efficient Ethernet, which

can save up to 49% of power consumption.

◆ The SMCGS2401 supports Green Saving, which provides significant power

saving compared to non-green switches.

◆ The SMCGS1601 and SMCGS2401 support IEEE 802.1p QoS.

◆ LED indicators for monitoring power, link, speed and activity.

◆ Desktop and rack-mountable steel case.

◆ Internal power supply.

IEEE 802.1P QOS

The SMCGS1601 and SMCGS2401switches support 802.1p priority queuing
Quality of Service, which is an implementation of the IEEE 802.1p standard.
With the 802.1p QoS function, network traffic that requires high priority, such as
VoIP (Voice-over Internet Protocol), web browsing applications or video
conferencing, can be forwarded before other traffic. The switches have separate
hardware queues for each physical port, when packets are received with an

802.1p priority tag, they are sent to the appropriate output queue.

The illustration below shows how 802.1p priority queuing is implemented on the
switches.

Figure 1: Mapping QoS on the Switch

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| Introduction

Overview

There are four priority levels labeled TC0, TC1, TC2 and TC3. The untagged
packets and the eight IEEE 802.1p priority tags (defined by the standard) are
mapped to the four priority queues on the switch. TC3 has the highest priority of
the four priority queues while TC0 has the lowest priority. The untagged packets
and eight priority tags, specified in IEEE 802.1p, are mapped to the switch’s
priority tags as follows:

◆ Untagged packets, and packets with priority tag 1 and 2 are assigned to the

switch’s TC0 level queue.

◆ Packets with priority tag 0 and 3 are assigned to the switch’s TC1 level

queue.

◆ Packets with priority tag 4 and 5 are assigned to the switch’s TC2 level

queue.

◆ Packets with priority tag 6 and 7 are assigned to the switch’s TC3 level

queue.

The SMCGS1601 switch uses Weighted Fair Queuing (WFQ) for scheduling. The
WFQ scheduling algorithm assigns bandwidth to all the queues based on default
weight values. The queue with the highest weight value has the largest
bandwidth of the four queues. And the SMCGS2401 Switch uses Weighted Robin
Round (WRR) for scheduling. The WRR queue-scheduling algorithm schedules all
the queues in turn with every queue assured a certain service time. For both
WFQ and WRR mode, the default weight values of TC0, TC1, TC2 and TC3 are
1:2:4:8.

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Overview

1

| Introduction

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2 HARDWARE DESCRIPTION

This chapter describes the front panel, rear panel and LED indicators of the
switch. The SMCGS1601 and SMCGS2401 only differ in the number of ports, and
all figures in this guide are of the SMCGS2401.

FRONT PANEL

The front panel of SMCGS2401 consists of switch LED indicators, and 24 10/100/
1000 Mbps RJ-45 ports.

Figure 2: SMCGS2401 Switch Front Panel

PORT AND SYSTEM STATUS LEDS

The switches include a display panel for key system and port indications that
simplify installation and network troubleshooting. The LEDs, which are located
on the front panel, are described in the following table.

Table 1: System and Port Status LEDs

LED Condition Status

POWER On Green The internal power supply is operating normally.

Off The unit has no power connected.

Link/Act On/Flashing Green Port has established a valid network connection.

Off There is no valid link on the port.

Flashing indicates activity.

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2

Rear Panel

Table 1: System and Port Status LEDs (Continued)

LED Condition Status

1000Mbps On Green The port is operating at 1000 Mbps.

| Hardware Description

Off The port is operating at 10 or 100 Mbps.

RJ-45 PORTS

The switch contains 16/24 1000BASE-T 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.

Each of these ports support auto-negotiation, so the optimum transmission
mode (half or full duplex), and data rate (10, 100, or 1000 Mbps) is selected
automatically.

Each port also supports IEEE 802.3x auto-negotiation of flow control, so the
switch can automatically prevent port buffers from becoming saturated.

REAR PANEL

The rear panel of the switch features a power socket and a grounding terminal.

Figure 3: SMCGS2401 Switch Rear Panel

GROUNDING TERMINAL

The SMCGS2401 already includes a lightning protection mechanism. However,
you can also ground the switch through the PE (Protective Earth) wire of an AC
power cord, or with a grounding cable. For detail information, see “Connecting to

Ground” on page 23.

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| Hardware Description

Rear Panel

AC POWER SOCKET

Connect the female connector of the power cord here, and the male connector to
the AC power outlet. Make sure the voltage of the power supply meets the
requirement of the input voltage.

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Rear Panel

2

| Hardware Description

– 18 –

3 INSTALLING THE SWITCH

Before installing the switch, verify that you have all the items listed under
“Package Contents.” If any of the items are missing or damaged, contact your
local SMC distributor. Also be sure you have all the necessary tools and cabling
before installing the switch.

PACKAGE CONTENTS

The following contents should be found in your package:

◆ One SMCGS1601 or SMCGS2401 Switch

◆ Two power cords

◆ This User Guide

◆ Rackmount Kit

◆ Quick Installation Guide

◆ SMC Warranty Card

◆ Four rubber foot pads

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Precautions

| Installing the Switch

PRECAUTIONS

To ensure a long-term and stable performance of the switch, pay attention to the
following before the installation.

SAFETY REQUIREMENTS

◆ Before cleaning the switch, disconnect the power supply. Do not clean the

switch using a wet cloth, and never use any other liquid for cleaning.

◆ Take waterproof measures during storage, transportation and operation of

the equipment.

◆ Use only the power cord provided with the switch.

◆ Make sure the voltage of the power supply meets the requirement of the

input voltage of the switch.

◆ Do not push any objects into the openings of the switch.

◆ Ensure the vent holes are well ventilated and unblocked.

◆ Do not open or remove the cover of the switch.

LOCATION REQUIREMENTS

When you choose a location for the switch, follow these guidelines:

◆ Install the switch on a flat and stable surface that can support the entire

weight of the switch with all fittings.

◆ Locate the switch far from strong electromagnetic field generators (such as

motors), vibration, dust, and direct exposure to sunlight.

◆ To ensure adequate air flow around the switch. At least 10 cm (4 inches) of

space at the front and rear of the switch is needed for ventilation.

◆ Make sure that the switch will be accessible and that the cables can be

easily connected.

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3

| Installing the Switch

◆ Position the switch away from water and moisture sources, be sure to

provide an acceptable temperature and humidity operating environment.

Installation

INSTALLATION

This switch can be either installed on the standard 19-inch mountable rack or
located on a desktop.

C

AUTION

:

Please unplug the power cord before installing or removing

the switch.

DESKTOP INSTALLATION

To install the switch on the desktop, follow these steps:

1. Set the switch on a flat surface strong enough to support the entire weight

of the switch with all fittings.

2. Remove the adhesive backing papers from the rubber feet.

3. Turn the switch over and attach the supplied rubber feet to the recessed

areas on the bottom at each corner of the switch.

Figure 4: Attaching Rubber Feet

4. Upturn the switch and set in the desired location, making sure there is

enough ventilation space on all sides for proper air flow

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3

Installation

| Installing the Switch

5. Connect the switch to a power source with the provided power cord. See

“Powering On” on page 25.

C

AUTION

:

Avoid placing anything heavy on the switch.

RACK INSTALLATION

To install the switch in an EIA standard-sized, 19-inch rack, follow the
instructions described below:

1. Secure the supplied rack-mounting brackets to each side of the switch with

supplied screws, as illustrated in the following figure.

Figure 5: Attaching Brackets

2. Use suitable screws (not provided) to secure the brackets to the rack, as

illustrated in the following figure.

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| Installing the Switch

Figure 6: Mounting the Switch

Installation

3. Connect the switch to a power source with the provided power cord. See

“Powering On” on page 25.

CONNECTING TO GROUND

Connecting the switch to ground protects against lightning over-voltage and
over-current of the switch, which is also a necessary measure to protect the
body from electric shock.

In different environments, the switch may be grounded differently. The following
instructs you to connect the switch to the ground in two ways; connecting to a
grounding bar, or connecting to ground through the power cord. Connect the
switch to ground in the best way according to your specific operating
environment.

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3

Installation

| Installing the Switch

CONNECTING TO A GROUNDING BAR

If the switch is installed in an equipment room, where a grounding bar is
available. You are recommended to connect the switch to a grounding bar as
shown in the following figure.

Figure 7: Connecting to a Grounding Bar

N

OTE

:

The grounding bar and grounding cable are not provided with the

product.

CONNECTING TO GROUND THROUGH THE POWER SUPPLY

If the switch is installed in a normal environment, it can be grounded through
the PE (Protective Earth) wire of the AC power supply, as shown in the following
figure.

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Figure 8: Connecting to Ground Through the Power Supply

N

OTE

:

The figure illustrates the application and principle. The power
plug in the package and the socket in your situation will comply with
regulations in your country, so they may differ from the figure above.

N

OTE

:

If you intend to connect the switch to ground through the PE
(Protective Earth) wire of the AC power cord, make sure the PE wire in
the electrical outlet is well grounded in advance.

3

| Installing the Switch

Installation

POWERING ON

The SMCGS1601 and SMCGS2401 switches are powered by connecting to an AC
power supply using a power cord. When powering on the switch, it automatically
initializes and the LED indicators respond as follows:

1. All of the LED indicators flash momentarily for one second, which represents

a resetting of the system.

2. The Power LED indicator turns on green.

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Connecting Network Devices

| Installing the Switch

CONNECTING NETWORK DEVICES

The switches are designed to be connected to 10, 100, or 1000 Mbps network
cards in PCs and servers, as well as to other switches and hubs.

CABLING GUIDELINES

The RJ-45 ports on the switch support automatic MDI/MDI-X pinout
configuration, so you can use standard straight-through twisted-pair cables to
connect to any other network device (PCs, servers, switches, routers, or hubs).

Each device requires an unshielded twisted-pair (UTP) cable with RJ-45
connectors at both ends. Use Category 5, 5e or 6 cable for 1000BASE-T
connections, Category 5 or better for 100BASE-TX connections, and Category 3
or better for 10BASE-T connections.

CONNECTING TO PCS, SERVERS, HUBS AND SWITCHES

1. Attach one end of a twisted-pair cable segment to the device’s RJ-45

connector.

2. Attach the other end of the cable segment to an available port on the

switch.

Make sure each twisted pair cable does not exceed 100 meters (328 ft) in
length.

3. As each connection is made, the relevant port LED (on the switch)

corresponding to each port will turn on green to indicate that the connection
is valid.

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A TROUBLESHOOTING

DIAGNOSING SWITCH INDICATORS

THE POWER LED IS OFF

◆ Make sure the AC power cord is connected to the switch and power source

properly.

◆ Make sure the power source is ON.

THE LINK/ACT LED IS OFF WHEN A DEVICE IS CONNECTED TO THE
C

ORRESPONDING PORT

◆ Make sure that the cable connectors are firmly plugged into the switch and

the device.

◆ Make sure the connected device is turned on and working properly.

◆ The cable must be less than 100 meters long (328 feet).

◆ Check the port on the attached device and cable connections for possible

defects. Replace the defective cable if necessary.

POWER AND COOLING PROBLEMS

If the power indicator does not turn on when the power cord is plugged in, you
may have a problem with the power outlet, power cord, or internal power
supply. However, if the unit powers off after running for a while, check for loose
power connections, power losses or surges at the power outlet. If you still
cannot isolate the problem, the internal power supply may be defective.

– 27 –

A

PPENDIX

Installation

A

| Troubleshooting

INSTALLATION

Verify that all system components have been properly installed. If one or more
components appear to be malfunctioning (such as the power cord or network
cabling), test them in an alternate environment where you are sure that all the
other components are functioning properly.

– 28 –

B SPECIFICATIONS

PHYSICAL CHARACTERISTICS

STANDARDS

IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
IEEE 802.3ab 1000BASE-T

TOPOLOGY

Star

PROTOCOL

CSMA/CD

DATA TRANSFER RATE

Ethernet: 10 Mbps (half/full duplex)
Fast Ethernet: 100 Mbps (half/full duplex)
Gigabit Ethernet: 1000 Mbps (full duplex)

NETWORK MEDIA (CABLE)

10BASE-T: UTP Category 3, 4, 5 cable (maximum 100 m)
EIA/TIA-568 100 STP (maximum 100 m)
100BASE-TX: UTP Category 5, 5e cable (maximum 100 m)
EIA/TIA-568 100 STP (maximum 100 m)
1000BASE-T: UTP Category 5e, 6 cable (maximum 100 m)
EIA/TIA-568 100 STP (maximum 100 m)

NUMBER OF PORTS

16/24 10/100/1000 Mbps Auto-Negotiation RJ-45 ports

– 29 –

A

PPENDIX

Physical Characteristics

B

| Specifications

LED INDICATORS

POWER, Link/Act, 1000Mbps

TRANSFER METHOD

Store-and-Forward

MAC ADDRESS LEARNING

Automatically learning, automatically aging

FRAME FILTER RATE

10BASE-T: 14881 pps/port
100BASE-TX: 148810 pps/port
1000BASE-T: 1488095 pps/port

FRAME FORWARD RATE

10BASE-T: 14881 pps/port
100BASE-TX: 148810 pps/port
1000BASE-T: 1488095 pps/port

SWITCHING DATABASE

8K MAC address entries

BUFFER MEMORY

256 Kbyes/device

SWITCHING CAPACITY

SMCGS1601: 32 Gbps
SMCGS2401: 48 Gbps

POWER ADAPTER

SMCG1601/2401: 100 to 240 V, 50-60 Hz, 0.6A

– 30 –

DIMENSIONS

29.4 x 18.0 x 4.4 cm (11.6 x 7.1 x 1.73 in.)

WEIGHT

SMCGS1601:1.45 Kg (3.19 lbs)
SMCGS2401:1.652 Kg (3.63 lbs)

FEATURE

Jumbo Frames:9 KBytes
Auto–MDI/MDIX
SMCGS1601: IEEE P802.3az Energy-Efficient Ethernet
SMCGS2401: Green Saving
SMCGS1601: IEEE 802.1p QoS
SMCGS2401: IEEE 802.1p QoS

TEMPERATURE

Operating: 0 to 40 °C (32 to 104 °F)
Storage: -40 to 70 °C (-40 to 158 °F)

A

PPENDIX

B

| Specifications

Physical Characteristics

HUMIDITY

Operating: 10% to 90% (non-condensing)
Storage: 5 to 90 °C (non-condensing)

– 31 –

A

PPENDIX

Physical Characteristics

B

| Specifications

– 32 –

www.edge-core.com/ www.smc.com

www.smcnetworks.co.kr

www.smc-asis.com

su www.smc.com

SMC NETWORKS TECHNICAL SUPPORT
From Singapore in English and (Mon.-Fri. 9AM to 5 PM)

Tel: [phone], Ext. 4

From the United Arab Emirates in English (Sun.-Thu. 9AM to 6 PM)

Tel: [phone]

From U.S.A. and Canada (24 hours a day, 7 days a week)

Tel: +1 (800) SMC-4-YOU/[phone] Fax: [phone]

150200062800A R02

SMCGS1601/SMCGS2401

20 Mason • Irvine, CA 92618 • Phn: 949-679-8000 • www.smc.com