SMC Networks SMCFS1601 - FICHE TECHNIQUE User manual

USER GUIDE
EZ SwitchTM 10/100
16/24-Port Unmanaged Fast Ethernet Switches
SMCFS1601/SMCFS2401

20 Mason
Irvine, CA 92618
Phone: [phone]
EZ SwitchTM 10/100
User Guide
From SMC’s EZ line of low-cost workgroup LAN solutions
April 2011
SMC-UG-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.

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W ARRANTY AND P RODUCT R EGISTRATION
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.

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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.

C OMPLIANCES AND S AFETY S TATEMENTS
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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:
REVISION HISTORY
This section summarizes the changes in each revision of this guide.
APRIL 2011 REVISION
This is the first revision of this guide.
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.

A BOUT T HIS G UIDE
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CONTENTS
WARRANTY AND PRODUCT REGISTRATION 4
COMPLIANCES AND SAFETY STATEMENTS 5
ABOUT THIS GUIDE 7
CONTENTS 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

C ONTENTS
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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 Corre-
sponding Port 27
Power and Cooling Problems 27
Installation 28
BSPECIFICATIONS 29
Physical Characteristics 29

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1INTRODUCTION
OVERVIEW
The EZ Switch 10/100 SMCFS1601 and SMCFS2401 switches provide 16 or 24
10/100 Mbps auto-negotiating RJ-45 ports. Each port on the switches support
auto MDI/MDI-X, which eliminates the need for crossover cables or uplink ports.
The switches are plug-and-play; any port can be connected to a server, a hub, or
a switch, using straight-through or crossover cable.
FEATURES
◆Complies with IEEE 802.3, IEEE 802.3u standards
◆16/24 10/100 Mbps auto-negotiating RJ-45 ports supporting Auto-MDI/
MDIX
◆Supports IEEE 802.3x flow control for full-duplex mode and backpressure
for half-duplex mode
◆LED indicators for monitoring power, link, activity, speed
◆Rack-mountable steel case
◆Internal power supply
◆Support for IEEE 802.3az Energy-Efficient Ethernet, which can save up to
49% of power consumption
◆Support for IEEE 802.1p QoS

C HAPTER 1 | Introduction
Overview
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IEEE 802.1PQOS
The SMCFS1601 and SMCFS2401switches 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
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.
Tag untag 0 1 2 3 4 5 6 7
Priority Level
Weight Value 1 2 4 8
TC0 TC1 TC2 TC3

C HAPTER 1 | Introduction
Overview
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The SMCFS1601 and SMCFS2401 switches use 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.

C HAPTER 1 | Introduction
Overview
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2HARDWARE DESCRIPTION
This chapter describes the front panel, rear panel, and LED indicators of the
switch. The SMCFS1601 and SMCFS2401 only differ in the number of ports. All
figures in this guide are of the SMCFS2401.
FRONT PANEL
The front panel of SMCFS2401 consists of switch LED indicators, and 24 10/100
Mbps RJ-45 ports.
Figure 2: SMCFS2401 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.
Flashing indicates activity.
Off There is no valid link on the port.
SMCFS2401
EZ 24-Port 10/100Mbps Switch

C HAPTER 2 | Hardware Description
Rear Panel
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RJ-45 PORTS
The switch contains 16/24 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.
Each of these ports support auto-negotiation, so the optimum transmission
mode (half or full duplex), and data rate (10 or 100 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: SMCFS2401 Switch Rear Panel
GROUNDING TERMINAL
The switch 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.
100Mbps
(SMCFS2401
only)
On Green The port is operating at 100 Mbps.
Off The port is operating at 10 Mbps.
Table 1: System and Port Status LEDs (Continued)
LED Condition Status
100-240V~ 50/60Hz 0.3A

C HAPTER 2 | Hardware Description
Rear Panel
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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.

C HAPTER 2 | Hardware Description
Rear Panel
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3INSTALLING 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 SMCFS1601 or SMCFS2401 Switch
◆One power cord
◆This User Guide
◆Rackmount Kit
◆Quick Installation Guide
◆SMC Warranty Card
◆Four rubber foot pads

C HAPTER 3 | Installing the Switch
Precautions
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PRECAUTIONS
To ensure a long-term and stable performance of the switch, pay attention to the
following before 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.