KTI Networks KF-4M User manual

InstallationGuide
Fast Ethernet Hub
Model:KF-4M
DOC.971210-KF4M-K
P/N: 750-0094-001

Ó1997 KTI Networks Inc. All rights reserved. No part of this docu-
mentationmay bereproduced inany formor byany meansor usedto
makeanydirectivework(suchastranslationortransformation)without
permission from KTI Networks Inc.
KTI Networks Inc. reserves the right to revise this documentation
and to make changes in content from time to time without obligation
onthe part of KTI Networks Inc. toprovide notification of such revi-
sion or change.
Formore information, contact:
United States KTI Networks Inc.
P.O. BOX 631008
Houston,Texas77263-1008
Phone: [phone]
Fax: [phone]
BBS: 713-2663015
E-mail:[email protected]
Web: http://www.ktinet.com/
International Fax: [phone]
BBS: 886-2-26983913
E-mail:[email protected]
Web: http://www.ktinet.com.tw/

The information contained in this document is subject to change without prior no-
tice.
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.
CISPRA 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 Characteris-
tics 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 equip-
ment meets or exceeds the following technical standards:
EN 55022: Limits and Methods of Measurement of Radio Interference characteris-
tics of Information Technology Equipment.
EN 50082/1:Generic Immunity Standard -Part 1: Domestic Commercial and Light Indus-
try.
EN 60555-2: Disturbances in supply systems caused by household appliances and similar
electrical equipment - Part 2: Harmonics.

4-port Fast Ethernet Hub for 100BASE-TX
Installation Guide
DOC.971211-KF4M-NK
P/N: 750-0094-002

Table of Contents
Chapter 1 Introduction
Introduction ............................................................................... 1
Features.................................................................................... 2
Chapter 2 Installation
Unpacking ................................................................................. 3
Installation................................................................................. 3
CheckingAC Power .................................................................. 4
Chapter 3 Making Network Connections
NetworkConnectors.................................................................. 5
Making End NodeConnections ................................................. 6
MakingHub-to-HubConnection................................................. 6
Chapter 4 Interpreting LED Indicators
LEDInterpretations ................................................................... 9

1. Introduction
The Fast Ethernet hub KF-4M provides four Fast Ethernet Twisted-
pair(TP) ports. Each port complies with 100BASE-TX standard and
isused for connectingto a 100BASE-TX device suchas a 100BASE-
TX hub or a computer equipped with a 100BASE-TX card. The hub
alsoprovides complete diagnostic LED indicators to indicate the ac-
tivity status of the hub and network ports.
The following figure illustrates the front and rear view of the hub:
1

Features
• Complies with IEEE 802.3u Class II repeater specifications
• Network ports: 4 100BASE-TX ports ( 5 RJ-45 jacks)
• Standard: IEEE802.3u 100BASE-TX std.
• Thehub hasan additionalRJ-45 jacklabeled "4I"for uplink
connectionto another 100BASE-TX hub with standard straight-
through100BASE-TX cable.
• ComprehensiveLED indicators are provided to indicate the
activities of the hub and network ports:
Power LED Power status
ActivityLED Activity status
CollisionLED Networkcollision status
UTP Link Link status of TP ports
• Specifications
Power: +12V800mA min.
Dimension: 144mmx 100mmx 26mm (WxDxH)
Temperature: 0oto 40oC when operating
Humidity: 10%to 90% non-condensing when operating
2

2. Installation
Unpacking
Checktoseethatyouhaveeverythingbeforeyoustarttheinstallation.
• Installationguide
• Thehub unit
• One AC power adapter for the hub
Installation
The hub can be placed on a desktop as a stand-alone unit. It also can
be mounted on a magnetic-sensitive metal surface with its rubber
magnet stand on the hub's bottom.
3

Checking AC Power
One AC power adapter is contained in the hub package. Before you
begin the installation, check the AC voltage of your area. The AC
power adapter which is used to supply the DC power for the hub
shouldhave the AC voltage matching the commercialpower voltage
in your area.
The specifications of the AC power adapter are:
• AC input power:AC power voltage of your area
• DC output power: +12 VDC 800mA min.
• DCplug type:
The power socket for the AC power adapter is located on the rear of
the hub as shown below:
4

3. Making Network Connections
Network Connectors
The TP ports are located on the front panel.
Network Ports
Four TP ports are presented by 4 RJ-45 jacks which are labeled
"1X","2X",.., and"4X" respectively.One RJ-45labeled "4I" next to
the "4X" jack is an alternative jack for the TP port #4.
5

Making End Node Connection
The "X" type jacks can be used for connecting to end nodes such as
computers. A category 5 2-pair straight-through UTP cable must be
used for such connections. The maximum distance between the hub
and computer is 100 meters. See the following figure:
Connecting to computers
Making Hub-to-Hub Connection
For making a hub-to-hub connection, select one "X" type jack and
connectto the "4I"type jack of another hub.See the following figure:
Connecting to another Hub
6

To make a hub-to-hub connection, the following rules must be fol-
lowed:
1. The other hub which is connected to KF-4M must comply with
IEEE 802.3u Class II repeater specifications.
2. The cable used for the hub-to-hub connection must be category 5
UTP cable and the maximum distance is 5 meters.
3. No more than two hubs can be cascaded in the network.
Thefollowing figure illustratesthe maximum networkexpansion:
Two-hub Network
7

A category 5 2-pair straight-through UTP cable is illustrated as be-
low:
2-pair Straight-through UTP Cable
Thefollowing illustrations indicate the pin assignments of the RJ-45
jacks on the hub.
Pin "X" Jacks "4I" Jack
1 RX data + TX data +
2 RX data - TX data -
3 TXdata + RX data +
6 TX data - RX data -
4,5,7,8 NC NC
8

4. Interpreting LED Indicators
Thefollowing figure shows the locations of theLED indicators:
LED Indicators
Power LED: indicates the status of the repeater power source.
State Indication Interpretation
On Normal The power of the hub is on.
Off Problem Nopowerisbeingsuppliedtothehub.
ActivityLED: indicates the transmission and receiving activities of
the hub. It blinks when there are data transfer activities.
State Indication Interpretation
Off Normal No datatransfer activities
Blink Normal Thereare data transfer activities
9

CollisionLED: indicates the collision detected by thehub. The LED
isnormally offand it blinks when there are collisions.
State Indication Interpretation
Off Normal No collision
Blink Normal Thereare collisions.
Link 1-4 LED: indicates the link status for port #1 to port #4 re-
spectively
State Indication Interpretation
On Normal GoodUTP link to a connected device
Off Normal No activelink toanother device
10