CTS SWH-2108 User manual

SWH-2108
8 Ports 10/100Base-TX Managed Ethernet Switch
User's Guide
Ver: 1.0

Trademarks
CTS is a registered trademark of Connection Technology Systems Inc.
Contents subject to revise without prior notice.
All other trademarks remain the property of their owners.
Copyright Statement
Copyright ©Connection Technology Systems Inc.
This publication may not be reproduced as a whole or in part, in any way whatsoever
unless prior consent has been obtained from Connection Technology Systems Inc.
FCC Warning
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 limitations are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates uses and can radiate radio frequency energy and, if no installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into a different outlet from that the receiver is connected.
Consult your local distributors or an experienced radio/TV technician for help.
Shielded interface cables must be used in order to comply with emission limits.
Changes or modifications to the equipment, which are not approved by the party
responsible for compliance, could affect the user’s authority to operate the equipment.
Copyright © 2005 All Rights Reserved.
Company has an on-going policy of upgrading its products and it may be possible that
information in this document is not up-to-date. Please check with your local distributors
for the latest information. No part of this document can be copied or reproduced in any
form without written consent from the company.
Trademarks:
All trade names andtrademarks are the properties of their respective companies
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Table of Contents
1. UNPACKING INFORMATION .......................................................................... 4
2. INTRODUCTION TO 8 PORT N-WAY SWITCHING HUB........................... 5
2.1 GENERAL DESCRIPTION.................................................................................. 5
2.2 KEY FEATURES ............................................................................................... 5
2.3 THE FRONT PANEL.......................................................................................... 6
2.3.1 System LEDs................................................................................................... 7
2.3.1.1 Power LED...........................................................................................................7
2.3.2 Port LEDs....................................................................................................... 7
2.3.2.1 Speed LED ...........................................................................................................7
2.3.2.2 Link/Act LED.......................................................................................................7
2.3.2.3 FDX/COL LED....................................................................................................7
2.4 THE REAR PANEL............................................................................................ 8
2.4.1 Power Connecting.......................................................................................... 8
2.4.2 DIP Switch...................................................................................................... 8
2.4.3 Diag button..................................................................................................... 8
3. INSTALLING AND USING 8 PORT N-WAY SWITCHING HUB.................. 9
3.1 INSTALLING THE 8PORT N-WAY SWITCHING HUB.......................................... 9
3.1.1 Desktop Installation........................................................................................ 9
3.1.2 Installing Network Cables.............................................................................. 9
3.1.2.1 Station Connections with Twisted-Pair Cable ......................................................9
3.1.2.2 Switch to Switch Connections with Twisted-Pair Cable.......................................9
4. SWITCH OPERATION...................................................................................... 10
4.1 MAC ADDRESS TABLE AND LEARNING........................................................ 10
4.2 FILTERING AND FORWARDING....................................................................... 10
4.3 STORE AND FORWARD................................................................................... 10
5. PRODUCT SPECIFICATIONS..........................................................................11
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1. Unpacking Information
Thank you for purchasing the8-port SWH-2108 N-Wayswitching hub. Before you
start, please check all the contents ofthis package.
The product package shouldinclude the following:
1. One 8-port N-Way switching hub
2. One external power supply
3. Rubber foot
4. User’s manual
5. Cable Holder

2. Introduction to 8 Port N-Way Switching Hub
2.1 General Description
This device is a powerful, high-performance Ethernet / FastEthernet Switch.
Twisted pair ports arecapableof 10 or 100Mbps auto-negotiation operation (N-Way). The
SWH-2108 is an ideal solution for micro-segmentinglarge networks into smaller
sub-networks foroverall improved performance, so enabling the most demanding
bandwidth multimedia and imaging applications.Moreover, the 10/100Mbps auto-sensing
capability provides an easy way in which to move from a 10Mbps to a 100Mbps network.
Compared with shared 10Mbps or 100Mbps networks, this N-Way switch delivers a
dedicated 10/100Mbps connection to every attached client with no bandwidth congestion
problems. Store-and-forward switching modes guarantee lowlatency and fast data
transmission. Full-duplex mode allows the simultaneous transmission and reception of
frames without the risk of collisions as well asa doubling of the network bandwidth.
For network connection:
The switchinghub can use the following types ofcabling:
10BASE-T Category 3, 4 or 5 UTP/STP
100BASE-TX Category 5 UTP/STP
Category 5 cable is preferred to be used with this product in structured wiring
environments. This will ensure correct operation of all ports at 10Mbps or
100Mbps.
2.2 Key Features
The SWH-2108 switching hubprovides the following keyfeatures:
IEEE 802.3 10Base-T, 802.3u,100Base-TX standard
Eight RJ-45 TP ports for 10/100Base-T/TX
Auto-Cross over for MDI/MDIX
Auto-Negotiation for10/100Base-TX connections
Store and Forward Switching Mechanism
Support 2 K MAC address table, 128K bytes Buffer memory
Support Power/Link Activity/FDX/Speed LED
Full/Half duplex mode operation

Support Port Based VLAN
Support 802.1Q Tagged VLAN
State Monitor – Model / Media/ Link / Speed / Duplex
Enhanced Port Monitor-Traffic Counter
Switch port configuration- Auto / Speed / Duplex / AutoMDI/MDIX
Support SNMP, Telnet and Consolemanagement
FTP/TFTP firmware upgrade
Time Server Configuration
User Authentication
IP security
IP and Trap configuration
Power Down Trap
Rate Limitingcontrol support
Fixed priority and weighted fair queuing
Support Flow Control
Support DHCP client
Support Even Log
QOS support with four traffic classes
Rack Mountable
2.3 The Front Panel
The front panel of theswitching hub is shown below.
The auto-negotiationfeature of the switching hub allows port 1 to port 8 running at
one of the following four operation modes:
1. 100Mbps full-duplex
2. 100Mbps half-duplex
3. 10Mbps full-duplex
4. 10Mbps half-duplex
Warning: The RJ-45ports are shielded datasockets. Theycan not be used as
telephone sockets. Only R-J45 plugs are allowedto connectthese sockets.
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2.3.1 System LEDs
System LED indicators are located on the frontpanel for showing the operating
status of the whole device.
2.3.1.1POWER LED
This indicator lights green when the hub is receiving power; otherwise, it is off.
2.3.2 Port LEDs
Port LED indicators are located on the front panel for showing the operating status
of each port.
2.3.2.1SPEED LED
The Speed LED indicates the link speed of each port. If theLED lightsgreen then
the connectionspeed is 100Mbps, off for 10Mbps.
2.3.2.2LINK/ACT LED
Every port has a Link/Activity LED. Steady green (link state)indicated that the port
has good linkage to its associated device. Flashing green indicates that the port is
receiving or transmitting data between its associated devices.
If the port is connected but the Link/ActivityLED is dark, check the following items:
1. The switching hub and the connected device’s power are on or not
2. The port’scable is firmly seated in its connectors in the switchinghub and in the
associated device.
3. The connectingcable is good and with correct type
4. The connectingdevice, including any network adapter is functioning.
From the Speed LED and Link/Activity, we could judge the connection speed as
following:
Speed LED Link/Activity LED Status
Off Off No Connection
Off Green Connect as 10Mbps
Green Green Connect as 100Mbps
2.3.2.3FDX/COLLED
A collision occurs when two stationswithin a collision domain attempt to transmit
data at the same time. Intermittent flashing amber of the collision LED is normal;the
contending adapters resolve each collision bymeans of a wait-then-retransmit algorithm.
Frequency of collisions isan indicator of heavy traffic on thenetwork.
If the FDX/COL lightgreen which means the portis under full-duplex operation or
dark for half-duplex mode. The following table is a summary of Port LEDs.

LED Operation
100M 100Mbps (Green), 10Mbps (Off)
Link/Act Link is present (Green), Activity (BlinkingGreen)
FDX/COL Full-Duplex (Amber), Half-Duplex (Off), COL (Blinking Amber)
2.4 The Rear Panel
The rear panel of the hub is shown below
2.4.1 Power Connecting
Plug the circle end of the power adapter firmly into the rearpanel of the switching
hub, and the other endinto anelectric service outlet then the system is ready.
2.4.2 DIP Switch
The DIP switch reserved all of functions.
2.4.3 Diag button
Reserves
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3. Installing and Using 8 Port N-Way Switching Hub
3.1 Installing the 8 Port N-Way Switching Hub
The SWH-2108 does not require software configuration. Users can immediately use
any of the featuresof this product simply by attaching thecables and turning the power
on.
3.1.1 Desktop Installation
To locate the switching hub onthe desktopand place the hub on a clean, flat desk
or table closesto a power outlet. Plug in all network connections and the power cord, and
then the system is ready.
When deciding where to put the switching hub then you mustensure:
It is accessible and cables canbe connected easily
Power cord holder was kept inpackage if consider to fix power cord. It could lock
aside from consol port.
Cabling is away from:
Sources of electrical noise such as radios, transmitters and broadband amplifiers
, Power linesand fluorescent lighting fixtures.
Water or moisturecan not enter the unit
Air flow around theunit and through thevents inthe side of the case is not
restricted (company recommend that you provide a minimum of 25mm inch
clearance)
To prolong the operational life of your units:
Never stack units more than eight high if freestanding.
Do not place objects ontop of any unit orstack
Do not obstructany vents at the sides of the case
3.1.2 Installing Network Cables
After placing the hubon the desktop, then we need to knowhow to connect the
device to network.
3.1.2.1STATION CONNECTIONS WITH TWISTED-PAIR CABLE
Connect eachstation to the switching hub by a twisted-pair straight cable
(10BASE-T or 100BASE-T cables). Plug one RJ-45 connector into a front-panel port of
the hub, and plug the other RJ-45 connectorinto the station’snetwork adapter.
3.1.2.2SWITCH TO SWITCH CONNECTIONS WITH TWISTED-PAIR CABLE
In making a switch to switch connection, you could use port 1to port 8 to connect
another switch with crossover cable.

4. Switch Operation
4.1 MACAddress Table and Learning
The switchinghub is implemented with aMAC address table whichis composed of
many entries. Each entry isused to store theaddress information of networknodes on
the network, including MAC address, port ID, etc. The information is the most important
base to do packet filteringand forwarding.
When one packet comes in from any port, the switching hub will learn the source
address, port ID,and the other relatedinformation in addresstable. Therefore, the
content of theMAC table willupdate dynamically.
4.2 Filtering and Forwarding
When one packet comes in from any port of the switching hub, it will check the
destination address besides the source addresslearning. The hub will look up the
address table for the destination address. Ifnot found, thispacket will be forwardedto all
the other ports except the portwhich this packet comesin. If found, and the destination
address is located at different port from this packet comes in, the packet will be
forwarded to the port where this destination address is located according to the
information ofaddress table.But, if the destination address is located at the same port as
this packet comes in then this packet will be filtered.
4.3 Store and Forward
Store-and-forward is one kind of packet-forwarding methodology. As a
store-and-forward switching hub, it will store the completepacket in the internal buffer
and do the complete error checking before transmitting to the network. Therefore, no
error packets will disturb thenetwork. It is the best choice when a network needs
efficiency and stability.

5. Product Specifications
Standard IEEE802.3, 10BASE-T
IEEE802.3u, 100BASE-TX
Interface RJ-45 x 8 N-Way switching ports
Cable Connections RJ-45 (10BASE-T) : UTP Category 3,4,5
RJ-45 (100BASE-TX) : UTP Category 5
Network Data Rate Auto-negotiation (10Mbps, 100Mbps)
Transmission Mode Auto-negotiation (Full-duplex, Half-duplex)
LED indications System
Power x1
Port
Speed
Link/Activity
FDX/COL
System Buffer Memory 1M Bit
MACAddress Table 2K entries
Filtering/Forwarding Rate 10Mbps: 14,880pps/14,880pps
100Mbps: 148,800pps/148,800pps
Emission FCC Class A, CE
For further reports, please contact us for update
Dimensions 240mm X 155mm X 34mm(W x D x H)
Weight 1.75KG
Operating Temperature 00~ 500C
Storage Temperature -200~ 600C
Operating Humidity 5% - 90% non-condensing
External Power Adapter Input AC 110V-240V
Output DC 12V
Power Consumption 9W
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