KTI Networks KS-280 User manual

Installation Guide
10/100 Fast Ethernet Switch
KS-280series
P/N:750-0121-001
DOC.990406-KS280-K
KS-280
KS-280/FXT
KS-280/FXC
KS-280/FXS

8-port 10/100 Fast Ethernet Switch
Installation Guide
DOC.990407-KS280-NK
P/N: 750-0121-002
KS280/FXT/FXC/FXS

Ó1999 KTI Networks Inc. All rights reserved. No part of this documen-
tation may be reproduced in any form or by any means or used to make
any directive work (such as translation or transformation) without per-
missionfromKTINetworkInc.
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:
UnitedStates KTINetworksInc.
P.O.BOX631008
Houston,Texas77263-1008
Phone: [phone]
Fax: [phone]
BBS: 713-2663015
E-mail: [email protected]
WWW: http://www.ktinet.com/
International Fax: [phone]
BBS: 886-2-26983913
E-mail: [email protected]
WWW: http://www.ktinet.com/

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 equip-
ment 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.
CISPRACOMPLIANCE:
This device complies with EMC directive of the European Community and meets or exceeds the follow-
ing 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 inter-
ference 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 equip-
ment - Part 2: Harmonics.

TableofContents
1. Introduction ................................................................................. 1
1.1 Features ................................................................................................................. 2
1.2 Specifications ....................................................................................................... 3
2. InstallingtheSwitch ................................................................... 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. MakingNetworkConnections ...................................................11
3.1 Network Switched Ports ................................................................................... 11
3.2 10BASE-T and 100BASE-TX Connection .................................................... 12
3.3 100BASE-FX Connection ................................................................................ 14
4. LEDIndicators........................................................................... 15
4.1 LED Panel .......................................................................................................... 15
4.2 Interpretation .................................................................................................... 15
Appendix
A FiberModuleSpecifications...................................................... 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.................................................................................................... 11
3-2 2-pair UTP Cable .............................................................................................. 12
3-3 100BASE-FX Module........................................................................................ 15
4-1 LED Indicators .................................................................................................. 16

1. Introduction
Driven by recent advances in desktop computing technology, today’s
network applications have grown speed, power and the ability to pro-
cess information. To meet the demands of these more powerful applica-
tions, the switch has been developed to alleviate congestion and im-
prove performance on your Ethernet network. This 8-port switch comes
with multiple ports, with each capable of transmitting or receiving infor-
mation simultaneously at full wire speed to control and allocate the net-
work bandwidth.
Figure1-1 SwitchUnit
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 non-
disruptive 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.
1

1.1 Features
Designed for resolving congestion problems caused by bandwidth-hun-
gry devices and bandwidth-intensive applications as well as a high num-
berofusers,theswitch not only adheres to theIEEE802.310BASE-Tand
IEEE802.3u100BASE-T standards, but also features:
• Various TP ports for flexible connection to servers and hubs.
- eight 10/100BASE-TX auto-negotiation switched ports
- onefiber module slot for optional100BASE-FXmodule
• The10/100BASE-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.
2

1.2 Specifications
Port#1 10BASE-T/100BASE-TX connectivity
OneMDI-XRJ-45jackand one MDI uplink RJ-45 jack
Port #2 - #7 10BASE-T/100BASE-TXconnectivity
OneMDI-X RJ-45jack
Port#8 Either10BASE-T/100BASE-TXoroptional100BASE-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 manualmodeis on)
LEDindications One Link/Activity/Speed LED per port
OneDuplex/CollisionLEDperport
Power and FX LEDs per unit
Filteringrate 14,880ppsforEthernet(10BASE-T)
148,800ppsforFast Ethernet (100BASE-TX, FX)
Forwardingrate 14,880pps for Ethernet(10BASE-T)
148,800ppsforFast Ethernet (100BASE-TX, FX)
Filteringaddress Multicast/Broadcast/Unicast address
12K MAC addresses per unit
RAMbuffers 4MB
Environment Temperature 0oCto40oC
Relativehumidity 10% to 90% non-condensing
Dimension 260mmx150mmx44mm(10.24x5.9x1.7inch)
Power 100-240VAC,50/60Hz,25W
3

2. Installing the Switch
The switch is designed to operate in workgroup environments without a
complicated configuration procedure. It also features an auto-select 100-
240V, 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-inchrackmount 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 : 0oC to 40oC
•Relative operating humidity : 10%to90% non-condensing
•Dimension:260mmx150mmx44mm(10.24x5.9x1.7inch)
4

RackMounting
For mounting the switch into a 19-inch rack, a pair of mounting brackets
is included in the pack.
Figure2-1InstallRack Mount Brackets
Installthe switch into a 19-inchrackas illustrated in the followingfigure:
Figure2-2Installthe Switch intothe19-inchRack
5

2.3 Front Panel and Rear Panel
Figure2-3ComponentsontheFrontandRearPanel
• Eight10/100BASE-TXswitchedports(Port#1-#8)
Each port consists of an RJ-45 connector (MDI-X type) and is used
forconnection to a 10BASE-T or 100BASE-TXdevice.
• UplinkRJ-45connectorforPort#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.
• DiagnosticLEDindicators
The indicators provide the operating status of the unit and the
network ports. The status includes power, Fiber, Link/Activity/
Speed,and Duplex/Collision.
• OnefibermoduleslotforPort#8
In addition to the RJ-45 connector, Port #8 also provides one fiber
module slot which can accommodate one optional fiber module.
• Configurationswitches
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.
6

2.4 Installing an Optional Fiber Module
In addition to the RJ-45 connector, Port #8 also provides one fiber mod-
ule slot which can accommodate one optional fiber module. This design
allows Port #8 to support either one 10BASE-T/100BASE-TX UTP con-
nection or one 100BASE-FX fiber connection.
Availableoptionalfibermodules
•100BASE-FXmoduleformultimodefiber with ST connectors
•100BASE-FXmoduleformultimodefiberwithSCconnectors
•100BASE-FXmodule for single-mode fiber with SCconnectors
Formore information, refer to Appendix-A.
Proceduretoinstallanoptionalfibermodule
1. Turn off the power to the unit.
2. Enable 100BASE-FXmoduleasillustratedinthefollowing figure:
Figure2-4 Enable100BASE-FXModule
7

3. Unscrew and remove the slot cover.
Figure2-5 RemovetheSlotCover
4. Insert the module into the slot along the slot guide until it is fully
seated.
5. Screw the module onto the unit securely.
Figure2-6 InserttheModuleintoSlot
6. Turn on the power to the unit.
As the module is enabled and installed in slot, the function of Port #8 RJ-
45 connector is disabled automatically.
8

2.5 Setting the Configuration Switches
The configuration switches (4 blocks) are located on the rear and illustrated as:
Figure2-7ConfigurationSwitches
Eachblockconsistsof6DIPswitcheswhichare 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
9

Auto-negotiation function enables the associated port to negotiate a
common operation mode (speed and duplex type) with the device con-
nected 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-duplexoperationenablestwodevicestotransferdatabi-directionally
at the same time.
DIPSwitchesPortSettingtoSupportAuto-negotiation:
SWx-3, -6 Off Enable auto-negotiation
SWx-1, -4 Off Full-duplex operation
SWx-2, -5 Off 100Mbps operation
HintforSettingSwitches:
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
FactoryDefaultSettings
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
OFFposition.
ImportantNote:
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.
10

3. Making Network Connections
3.1 Network Switched Ports
There are eight ports on the switch for connection to eight LAN seg-
ments. Each segment is an independent shared network in one collision-
domain.
Figure3-1NetworkPorts
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-sens-
ing 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-TXor RJ-45 connector over UTP
100BASE-FX Optional fiber module over fiber
11

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.InadditiontooneMDI-Xjack,Port#1 also has one extra MDI jack.
Only one can be used at the same time. The pin definitions for MDI-X
jackand MDI jack are:
PIN# MDI-X Jack MDI Jack
1 Rx+ Tx+
2 Rx- Tx-
3 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.
UTPCable
The following figure illustrates the pin assignments of a straight-through
UTP and a crossover UTP cable:
Figure3-2 2-pairUTPCable
12

It is suggested to use straight-through UTP cables for all UTP connec-
tions. The maximum length and UTP cable categories used for the con-
nections to a 10BASE-T device and 100BASE-TX device are:
CONNECTEDDEVICE UTP CABLE USED & MAXIMUM LENGTH
10BASE-T device Cat. 3, 4, 5 UTP (100 meters)
100BASE-TX device Cat. 5 UTP (100 meters)
OperationMode
All switched ports are designed as auto-negotiation capable switched
ports. Each port can determine the speed and duplex type used automati-
cally through an auto-negotiation process with the remote connected
auto-negotiation capable device. The auto-negotiation process is per-
formed upon the connection is made.
When connecting to a non-auto-negotiation device, each port also fea-
tures 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.
13

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 la-
beled Rx is used for reception.
Figure3-3 100BASE-FXModule
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 Appen-
dix-Aformore information.
NOTE: The 100BASE-FX fiber module does not support auto-negotia-
tion 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.
14

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:
Figure4-1LEDIndicators
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.
Everyporthas identical interpretations for the LED display.The LED can
display two different colors. Different colors present different indica-
tions as the table shown below:
PORTLED COLOR STATE&INDICATION
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
15