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Installation Guide
10/100 Fast Ethernet Switch
KS-280 series
P/N:750-0121-001
DOC.990406-KS280-K
KS-280
KS-280/FXT
KS-280/FXC
KS-280/FXS
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8-port 10/100 Fast Ethernet Switch
Installation Guide
DOC.990407-KS280-NK
P/N: 750-0121-002
KS280/FXT/FXC/FXS
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Ó 1999 KTI Networks Inc. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make
any directive work (such as translation or transformation) without permission from KTI Network Inc.
KTI Networks Inc. reserves the right to revise this documentation and to
make changes in content from time to time without obligation on the part
of KTI Networks Inc. to provide notification of such revision or change.
For more information, contact:
United States KTI Networks Inc.
P .O. BOX 631008
Houston, T exas 77263-1008
Phone: 713-2663891
Fax: 713-2663893
BBS: 713-2663015
E-mail: kti@ktinet.com
WWW: http://www .ktinet.com/
International Fax: 886-2-26983873
BBS: 886-2-26983913
E-mail: kti@ktinet.com.tw
WWW: http://www .ktinet.com/
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The information contained in this document is subject to change without prior notice.
Copyright Ó KTI. All Rights Reserved.
TRADEMARKS
Ethernet is a registered trademark of Xerox Corp.
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 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 in which case the user will be required to
correct the interference at his own expense.
NOTICE:
(1) The changes or modifications not expressively approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
(2) Shielded interface cables and AC power cord, if any, must be used in order to comply with the
emission limits.
CISPR A COMPLIANCE:
This device complies with EMC directive of the European Community and meets or exceeds the following technical standard.
EN 55022 - Limits and Methods of Measurement of Radio Interference Characteristics of Information
Technology Equipment. This device complies with CISPR Class A.
WARNING: 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.
CE NOTICE
Marking by the symbol CE indicates compliance of this equipment to the EMC directive of the
European Community. Such marking is indicative that this equipment meets or exceeds the following
technical standards:
•EN 55022: Limits and Methods of Measurement of Radio Interference characteristics of Information
Technology Equipment.
•EN 50082/1:Generic Immunity Standard -Part 1: Domestic Commercial and Light Industry.
•EN 60555-2: Disturbances in supply systems caused by household appliances and similar electrical equipment - Part 2: Harmonics.
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T able of Contents
1. Introduction ................................................................................. 1
1.1 Features ................................................................................................................. 2
1.2 Specifications ....................................................................................................... 3
2. Installing the Switch ................................................................... 4
2. 1 Packing List ......................................................................................................... 4
2.2 Mounting the Switch ........................................................................................... 4
2.3 Front Panel and Rear Panel ............................................................................... 6
2.4 Installing an Optional Fiber Module .................................................................. 7
2.5 Setting the Configuration Switches ................................................................... 9
3. Making Network Connections ...................................................11
3.1 Network Switched Ports ................................................................................... 1 1
3. 2 10BASE-T and 100BASE-TX Connection .................................................... 1 2
3. 3 100BASE-FX Connection ................................................................................ 1 4
4. LED Indicators........................................................................... 15
4.1 LED Panel .......................................................................................................... 1 5
4.2 Interpretation .................................................................................................... 1 5
Appendix
A Fiber Module Specifications...................................................... 16
Figures
1-1 Switch Unit ........................................................................................................... 1
2-1 Install Rack Mount Brackets .............................................................................. 5
2-2 Install the Switch into a 19-inch Rack ............................................................. 5
2-3 Componets on the Front and Rear Panel ......................................................... 6
2-4 Enable 100BASE-FX Module ............................................................................. 7
2-5 Remove the Slot Cover ....................................................................................... 8
2-6 Insert the Module into Slot ................................................................................ 8
2-7 Configuration Switches ....................................................................................... 9
3-1 Network Ports .................................................................................................... 1 1
3-2 2-pair UTP Cable .............................................................................................. 1 2
3-3 100BASE-FX Module ........................................................................................ 1 5
4-1 LED Indicators .................................................................................................. 1 6
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1. Introduction
Driven by recent advances in desktop computing technology, today’s
network applications have grown speed, power and the ability to process information. T o meet the demands of these more powerful applications, the switch has been developed to alleviate congestion and improve performance on your Ethernet network. This 8-port switch comes
with multiple ports, with each capable of transmitting or receiving information simultaneously at full wire speed to control and allocate the network bandwidth.
Figure 1-1 Switch Unit
The key features of this switch unit are:
• Combining eight 10/100Mbps-based Fast Ethernet switched ports,
the switch delivers a high network bandwidth for your Fast
Ethernet network
• With 10BASE-T support on each port, the switch provides a nondisruptive and smooth migration path from Ethernet to a Fast
Ethernet network.
• With one fiber module slot, the switch allows you to install an
optional 100BASE-FX fiber optic module to connect to a Fast
Ethernet fiber optic backbone.
• Combining multiple speeds and multiple media support in the same
unit, the switch can meet your diversified application requirements.
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1.1 Features
Designed for resolving congestion problems caused by bandwidth-hungry devices and bandwidth-intensive applications as well as a high number of users, the switch not only adheres to the IEEE 802.3 10BASE-T and
IEEE 802.3u 100BASE-T standards, but also features:
• Various TP ports for flexible connection to servers and hubs.
- eight 10/100BASE-TX auto-negotiation switched ports
- one fiber module slot for optional 100BASE-FX module
• The 10/100BASE-TX ports support:
- auto speed sensing for 100Mbps or 10Mbps connection
- auto configuration with auto-negotiation devices
• Self learning for network configuration
• Store and forward switching to ensure only good packets are forwarded
• Full-duplex or half-duplex operation support for all switched ports
• Forwarding and filtering at full wire speed
• User-friendly designs
- comprehensive LED indicators provide quick, easy to
read port and switch information
- rack mount kit provided
- additional uplink jack for port #1 allow easy connection to
different types of devices with a straight cable instead
of a modified crossover cable
- fiber module slot for connecting a 100BASE-FX fiber segment
to a Fast Ethernet fiber backbone.
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1.2 Specifications
Port #1 10BASE-T/100BASE-TX connectivity
One MDI-X RJ-45 jack and one MDI uplink RJ-45 jack
Port #2 - #7 10BASE-T/100BASE-TX connectivity
One MDI-X RJ-45 jack
Port #8 Either 10BASE-T/100BASE-TX or optional 100BASE-FX
One MDI-X RJ-45 jack and one fiber module slot (on
back rear)
Configuration Each port has three DIP switches for selection:
. auto-negotiation mode or manual mode
. 10Mbps or 100Mbps (when manual mode is on)
. half-duplex or full-duplex (when manual mode is on)
LED indications One Link/Activity/Speed LED per port
One Duplex/Collision LED per port
Power and FX LEDs per unit
Filtering rate 14,880 pps for Ethernet (10BASE-T)
148,800 pps for Fast Ethernet (100BASE-TX, FX)
Forwarding rate 14,880 pps for Ethernet (10BASE-T)
148,800 pps for Fast Ethernet (100BASE-TX, FX)
Filtering address Multicast/Broadcast/Unicast address
12K MAC addresses per unit
RAM buffers 4MB
Environment T emperature 0oC to 40oC
Relative humidity 10% to 90% non-condensing
Dimension 260mm x 150mm x 44mm (10.24 x 5.9 x 1.7 inch)
Power 100-240 V AC, 50/60Hz, 25W
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2. Installing the Switch
The switch is designed to operate in workgroup environments without a
complicated configuration procedure. It also features an auto-select 100240V, 50/60Hz 25W power supply unit, which works in most countries
around the world.
Before connecting the supplied power cord into the switch, check to see
that the cord voltage and current rating conform to the standards of the
country of operation.
2.1 Packing List
The switch has the following components shipped with it:
• One switch unit
• One AC power cord
• 19-inch rack mount kit
• Installation guide
2.2 Mounting the Switch
The switch can be placed on a desktop as a stand-alone unit. Allow
enough ventilation space between the switch and the objects around it.
The environmental specifications are:
• Operating temperature : 0
o
C to 40oC
• Relative operating humidity : 10% to 90% non-condensing
• Dimension : 260mm x 150mm x 44mm (10.24 x 5.9 x 1.7 inch)
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Rack Mounting
For mounting the switch into a 19-inch rack, a pair of mounting brackets
is included in the pack.
Figure 2-1 Install Rack Mount Brackets
Install the switch into a 19-inch rack as illustrated in the following figure:
Figure 2-2 Install the Switch into the 19-inch Rack
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2.3 Front Panel and Rear Panel
Figure 2-3 Components on the Front and Rear Panel
• Eight 10/100BASE-TX switched ports (Port #1- #8)
Each port consists of an RJ-45 connector (MDI-X type) and is used
for connection to a 10BASE-T or 100BASE-TX device.
• Uplink RJ-45 connector for Port #1
The additional MDI RJ-45 connector is also provided on Port #1 for
easy uplink via standard straight-through UTP to other device that
supports MDI-X RJ-45 connector .
• Diagnostic LED indicators
The indicators provide the operating status of the unit and the
network ports. The status includes power , Fiber , Link/Activity/
Speed, and Duplex/Collision.
• One fiber module slot for Port #8
In addition to the RJ-45 connector , Port #8 also provides one fiber
module slot which can accommodate one optional fiber module.
• Configuration switches
A set of configuration switches is located on the rear of the switch
unit. Those switches are provided to configure the operation
settings for each network port individually.
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2.4 Installing an Optional Fiber Module
In addition to the RJ-45 connector, Port #8 also provides one fiber module slot which can accommodate one optional fiber module. This design
allows Port #8 to support either one 10BASE-T/100BASE-TX UTP connection or one 100BASE-FX fiber connection.
A vailable optional fiber modules
• 100BASE-FX module for multimode fiber with ST connectors
• 100BASE-FX module for multimode fiber with SC connectors
• 100BASE-FX module for single-mode fiber with SC connectors
For more information, refer to Appendix-A.
Procedure to install an optional fiber module
1. Turn off the power to the unit.
2 . Enable 100BASE-FX module as illustrated in the following figure:
Figure 2-4 Enable 100BASE-FX Module
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3. Unscrew and remove the slot cover.
Figure 2-5 Remove the Slot Cover
4. Insert the module into the slot along the slot guide until it is fully
seated.
5. Screw the module onto the unit securely .
Figure 2-6 Insert the Module into Slot
6. Turn on the power to the unit.
As the module is enabled and installed in slot, the function of Port #8 RJ45 connector is disabled automatically .
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2.5 Setting the Configuration Switches
The configuration switches (4 blocks) are located on the rear and illustrated as:
Figure 2-7 Configuration Switches
Each block consists of 6 DIP switches which are numbered 1 to 6 from left
to right sequentially . Every three consecutive DIP switches are grouped
and labeled with a port number individually as follows:
PORT# SWITCHES
1 SW4-4, 5, 6 SW4 position 4, 5, 6
2 SW4-1, 2, 3 SW4 position 1, 2, 3
3 SW3-4, 5, 6
4 SW3-1, 2, 3
5 SW2-4, 5, 6
6 SW2-1, 2, 3
7 SW1-4, 5, 6
8 SW1-1, 2, 3
The functions of three DIP switches (from left to right) are:
SWITCH SETTING & DEFINITION
SWx-1, -4 Off Full-duplex operation (when manual setting)
On Half-duplex operation (when manual setting)
SWx-2, -5 Off 100Mbps operation (when manual setting)
On 10Mbps operation (when manual setting)
SWx-3, -6 Off Enable auto-negotiation function
On Manual setting (auto-negotiation is disabled)
SWx : switch block x and x=1, 2, 3, 4
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Auto-negotiation function enables the associated port to negotiate a
common operation mode (speed and duplex type) with the device connected at the remote end of the link cable. The common operation mode
is negotiated in the sequence as follows:
When an operation mode is accepted by the remote device, the mode is
used for the data transfer between the port and the connected device.
Full-duplex operation enables two devices to transfer data bi-directionally
at the same time.
DIP Switches Port Setting to Support Auto-negotiation:
SWx-3, -6 Of f Enable auto-negotiation
SWx-1, -4 Of f Full-duplex operation
SWx-2, -5 Of f 100Mbps operation
Hint for Setting Switches:
Remote Connected Device Port Setting
Auto-negotiation device Use auto-negotiation
Half-duplex device such as a hub Use auto-negotiation
Non-auto-negotiation full-duplex device Use manual mode
Factory Default Settings
All ports are enabled to support auto-negotiation function when the
switch unit is shipped out from factory . That is all DIP switches are set to
OFF position.
Important Note:
As long as any change on the settings of the DIP switch is made, you
must turn the power to the switch unit off and turn it on again to make the
change take effect.
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3. Making Network Connections
3.1 Network Switched Ports
There are eight ports on the switch for connection to eight LAN segments. Each segment is an independent shared network in one collisiondomain.
Figure 3-1 Network Ports
All ports are 10/100Mbps-based dual-speed switched port. Each can
support one connection to either a 10Mbps Ethernet segment or a
100Mbps Fast Ethernet segment. It features the capability of auto-sensing the speed of the connected segment.
The following table illustrates the connectivity supported by each port:
PORT CONNECTION CONNECTOR & CABLES
Port #1-#7 10BASE-T or RJ-45 connector over UTP
100BASE-TX RJ-45 connector over UTP
Port #8 10BASE-T or RJ-45 connector over UTP
100BASE-TX or RJ-45 connector over UTP
100BASE-FX Optional fiber module over fiber
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3.2 10BASE-T and 100BASE-TX Connection
The RJ-45 connectors labeled 1X, 2X, ..., 8X are implemented as MDI-X
type jacks. An MDI-X jack is designed with internal crossover function.
It allows a connection to an end station using straight-through UTP
cable. In addition to one MDI-X jack, Port #1 also has one extra MDI jack.
Only one can be used at the same time. The pin definitions for MDI-X
jack and MDI jack are:
PIN# MDI-X Jack MDI Jack
1 Rx+ Tx+
2 Rx- Tx3 Tx+ Rx+
6 Tx- Rx-
4,5,7,8 NC NC
When making a connection to another device using straight-through
UTP cable, make sure MDI-X to MDI connection rule is followed.
UTP Cable
The following figure illustrates the pin assignments of a straight-through
UTP and a crossover UTP cable:
Figure 3-2 2-pair UTP Cable
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It is suggested to use straight-through UTP cables for all UTP connections. The maximum length and UTP cable categories used for the connections to a 10BASE-T device and 100BASE-TX device are:
CONNECTED DEVICE UTP CABLE USED & MAXIMUM LENGTH
10BASE-T device Cat. 3, 4, 5 UTP (100 meters)
100BASE-TX device Cat. 5 UTP (100 meters)
Operation Mode
All switched ports are designed as auto-negotiation capable switched
ports. Each port can determine the speed and duplex type used automatically through an auto-negotiation process with the remote connected
auto-negotiation capable device. The auto-negotiation process is performed upon the connection is made.
When connecting to a non-auto-negotiation device, each port also features the capability to auto-sense the connection speed.
When auto-negotiation function is enabled, the speed and duplex type
used on the port are:
Device Connected Operation Mode
10BASE-T hub 10Mbps, half-duplex
100BASE-TX hub 100Mbps, half-duplex
Auto-negotiation device Auto-negotiation
Non-auto* half-duplex device auto-speed-sensing, half-duplex
Non-auto full-duplex device Not supported
* Non-auto : non-auto-negotiation
For connecting to a non-auto-negotiation full-duplex device, disable the
auto-negotiation function and set the speed and duplex type for the port
manually .
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3.3 100BASE-FX Connection
As Port #8 module slot is installed with a 100BASE-FX fiber module, it
can support a connection to a Fast Ethernet network segment through a
fiber optic connection. Normally, a fiber module comes with two fiber
connectors. One labeled Tx is used for transmission. The other one labeled Rx is used for reception.
Figure 3-3 100BASE-FX Module
When connecting to a 100BASE-FX device using fiber cable, make sure
the Tx connector of the module is connected to the Rx connector of the
device and Rx connector is connected to the Tx connector of the device.
Three optional fiber modules are available for selection. Refer to Appendix-A for more information.
NOTE: The 100BASE-FX fiber module does not support auto-negotiation function. If Port #8 is set at auto-negotiation mode (DIP switches for
Port #8), the fiber module operates in 100Mbps and half-duplex mode
automatically . Use manual mode for setting full-duplex operation if it is
connected to a Fast Ethernet full-duplex device.
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4. LED Indicators
4.1 LED Panel
The switch provides comprehensive LED indicators for diagnosing and
monitoring the operation of the unit as illustrated below:
Figure 4-1 LED Indicators
4.2 Interpretation
POWER LED : indicates the status of the power supplied to the switch.
FX LED : indicates the fiber module is enabled.
PORT LED : Each port has two LEDs to indicate the port status includ-
ing cable link, connection speed, activity, collision, and duplex mode.
Every port has identical interpretations for the LED display . The LED can
display two different colors. Different colors present different indications as the table shown below:
PORT LED COLOR ST ATE & INDICA TION
Link/Act Green On 10Mbps link is ok
Orange On 100Mbps link is ok
Green Blink 10Mbps activity
Orange Blink 100Mbps activity
Duplex/Collision Green On Half-duplex and no collision
Orange On Full-duplex
Green Blink Half-duplex and collisions occur
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Appendix-A Fiber Module Specifications
Three 100BASE-FX fiber modules are available for the fiber connection.
FXT Module
Connectors: ST type
Wavelength: 1300nm
Fiber mode: Multimode
Fiber cable: 50/125, 62.5/125, 85/125, 100/140mm
Cable length: 2000 meters
FXC Module
Connectors: SC type
Wavelength: 1300nm
Fiber mode: Multimode
Fiber cable: 50/125, 62.5/125, 85/125, 100/140mm
Cable length: 2000 meters
FXS Module
Connectors: SC type
Wavelength: 1300nm
Fiber mode: Single mode
Fiber cable: 8/125mm
Cable length: 15K meters
Recommended fiber cable for FXT and FXC modules : 62.5/125mm
The cable length specified above is the maximum connection distance
between a
fiber module and a remote full-duplex device.
For more information, contact the sale representative where you buy the
switch unit.
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