Palm-Top 10/100Mbps Fast Ethernet Hub
SOHOConnect Series
FN-403
FN-803
4/8-port 100Base-TX
Palm-Top Fast Ethernet Hub
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Trademarks
Copyright © PLANET Technology Corp. 1999.
Contents subject to revision without prior notice.
PLANET is a registered trademark of PLANET Technology Corp.
The information in this manual is subject to change without notice.
All other trademarks belong to their respective owners.
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 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.
If necessary the user should consult the dealer or an experienced radio or
television technician for additional suggestions.
CE Mark 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 make adequate
measures.
Revision
The information in this manual is subject to change without notice.
User's manual for PLANET SOHOConnect Series,
FN-403/FN-803.
Rev 1.2 (April. 1999)
Part No. EM-FN4/803v2
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Table of Contents
TABLE OF CONTENTS .......................................................... III
INTRODUCTION ........................................................................1
ABOUT THIS GUIDE.....................................................................1
CHECKLIST .................................................................................1
PRODUCT FEATURES ...................................................................2
ABOUT FAST ETHERNET ..............................................................2
Ethernet Standards and Operation Speeds.............................2
Fast Ethernet Hub Classes ....................................................2
100Base-TX Fast Ethernet Cabling .......................................3
100Base-TX Fast Ethernet Summary .....................................3
INSTALLATION .........................................................................5
HARDWARE DESCRIPTION............................................................5
Front panel ...........................................................................5
LED Indication .....................................................................5
Rear Panel ............................................................................6
HARDWARE INSTALLATION ..........................................................7
General Rules .......................................................................7
Connecting End Nodes ..........................................................8
Connecting the Hub to Another Hub by Uplink port ..............9
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Connecting the Hub to DC Power .........................................9
HARDWARE TROUBLESHOOTING ..................................................9
APPENDIX A
RJ-45 PIN ASSIGNMENTS.........................13
STRAIGHT-THROUGH / CROSSOVER CABLE ................................13
APPENDIX B
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SPECIFICATIONS.......................................15
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Introduction
About This Guide
Thank you for purchasing this Palm-Top 10/100Mbps Fast Ethernet
Hub -- FN-403/FN-803. Compact in size and lightweight, utilizing
the latest VLSI technology to provide high reliability levels, the units
provide a flexible approach to hub deployment.
In this user's guide, you will learn product characteristics, it's
features, and also some basic installation concepts. Please read the
following section carefully before your installation.
Checklist
Carefully unpack the package and check its contents against the checklist
given below.
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♦
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100Base-TX Fast Ethernet hub
User‘s manual
AC power adapter
Rubber Foot
Please inform your dealer immediately for any wrong, missing, or damaged
part if possible, retain the carton including the original packing materials,
and use them against to repack the product in case there is a need to return
it to us for repair.
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Product Features
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Conforms to IEEE 802.3u 100Base-TX Standard
Provides LED indicators for monitoring overall hub condition and
individual port status
Automatic bad port partitioning to protect the network
Conforming Fast Ethernet Class II Repeater specification
For desktop installation
About Fast Ethernet
This hub is technically known as a 100Base-TX Class II Fast
Ethernet hub. This Section describes what this means in practical
terms.
Ethernet Standards and Operation Speeds
The standards of the Ethernet are defined by the Institute of
Electrical and Electronics Engineers (IEEE). The standard for
traditional Ethernet using hubs and twisted-pair cables is known as
10Base-T. Traditional Ethernet works at a signaling speed of
10Mbps, that is, ten megabits (slightly more than a character) per
second. The Base in 10Base-T stands for “baseband,” a one-bit-at-atime signaling method; the T stands for twisted-pair cables.
Fast Ethernet was developed to meet the demand for increased
“bandwidth,” in other word, greater data-carrying capacity. A fast
Ethernet hub works at 100Mbps, ten times the speed of a 10Base-T
hub.
The IEEE had defined several Fast Ethernet Standards. The hub complies
with the 100Base-TX standard: 100Mbps baseband signaling on twistedpair cables, with signals crossing from the Transmit lines to the Receive
lines somewhere between each pair of communication end nodes.
Fast Ethernet Hub Classes
This hub is a Class II Fast Ethernet hub. This means two things:
1. It will work with Fast Ethernet interface cards of one type only, and
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2. It can be connected to another hub for the purpose of expanding the
network.
Note: A Class I hub will work with more than one type of Fast Ethernet
interface card, but cannot be connected to another hub.
100Base-TX Fast Ethernet Cabling
The twisted-pair cables used for traditional Ethernet and Fast Ethernet all
look the same on the outside. Such cables, however, come in different
grades and with different wire arrangement, and can have different kinds of
sheathing.
The kinds of cables that can be used with a 100Base-TX Class II Fast
Ethernet hub are
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♦
Category 5 unshielded twisted-pair cable, and ( Category 5 UTP)
Type 1 shielded twisted-pair cable (Type 1 STP )
100Base-TX Fast Ethernet Summary
Be sure to remember the following rules about a 100Base-TX Class II Fast
Ethernet hub:
1. All end nodes connected to the hub must have 100Base-TX Fast Ethernet
interface cards.
2. Only Category 5 UTP or Type 1 STP cables may be used to connect and
nodes to the hub. The cables must be straight-wired.
3. To expand a network built around one Fast Ethernet hub, you can connect
the hub to one and only one other 100Base-TX Class II hub.
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Installation
Hardware Description
This section describes the important parts of the 100Base-TX Fast Ethernet
hub. It presents front panel and rear panel drawings of the product showing
the LEDs, connectors, and switches.
Front panel
The following figure shows the front panel of 4/8-port 100Base- TX Fast
Ethernet hub.
Figure 1, FN-403 Front Panel
Figure 2. FN-803 Front Panel
LED Indication
On the front panel, there are several LED indicators for monitoring the
device itself, and the network status. At a quick glance of the front panel,
the user would be able to tell if the product is receiving power; if it is
monitoring another hub or concentrator; or if a problem exists on the
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network.
The following describes the function of each LED indicator
Power LED
Color:
Red
Label:
PWR
Function: This LED light is located at the left side on the front panel. It will
light up (ON) to show that the product is receiving power.
Conversely, no light (OFF) means the product is not receiving
power.
Port’s Link and Act
Color:
Green
Label:
Link, Act
Function: Each RJ45 station port on the hub is one numbered LED indicator
for monitoring port “Good Link” and data traffic. The LED is
normally OFF after the power on operation, but will light up
steadily to show “Good Link” when port is been connected. And
the LED will flash rapidly to show data passing in and out the
port.
Collision LED
Color:
Orange
Label:
COL
Function: A “collision” in Ethernet, is when two end nodes transmit at the
same time. The indicator lights up whenever there is a collision
between a directly attached end node and any other node
DC Power Jack
The power cord should be plug into this socket. The DC jack accepts DC
power equal to 9~12VDC, 1~1.5A power supply.
Rear Panel
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Figure 4. FN-403 Rear Panel
Figure 5. FN-803 Rear Panel
There are 4/8 RJ-45 jacks on the front panel. Each jack is labeled with a
port number.
•
•
All ports‘ Transmit and Receive lines are crossed within the hub. A
100Base-TX port must be internally cross-wired (MDI-X) to let you
connect an end node using straight-wired cabling.
An additional " Uplink " (or called MDI-II) port besides port 1. The
“Uplink” port is used for connection another hub through an ordinary
straight-wired twisted-pair cable by running one end of straight cable
to “Uplink” port and the other end to another hub‘s station port.
Hardware installation
After selecting an appropriate location, you are ready to connect it. This
section covers important rules regarding Fast Ethernet connections, and
describes how to connect the hub to end nodes, another hub, and power
supply.
General Rules
Before making any connections to the hub, note the following rules:
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All network connections to the hub must be made using Category 5
UTP or Type 1 STP cables. Do not use similar-looking Category 2 or 3
cables or “flat satin” telephone cords.
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No more than 100 meter (about 328 feet) of cabling may be used
between the hub and an end node; no more than 5 meters (16.4 feet)
may be used between two hubs. Each stack is composed up to 2 hubs
max. Under this limitation, no more than 205 meters of cabling may be
used between ANY two-end nodes.
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To expand your network, you have three methods:
⇒ You can connect the hub to another 100Base-TX Class II Fast
Ethernet hub, but not to more than one, and not to any other kind of
hub through “Uplink” port. These two hubs can come from different
suppliers.
Connecting End Nodes
LAN end nodes such as single-user computers, servers, bridges, and routers
must be connected to the 100Base-TX ports using straight-wired high-grade
(Category 5 unshielded or Type 1 shielded) twisted-pair cabling.
• We recommend starting with the higher-numbered ports when
connecting Ethernet LAN and the new hub does not have an “Uplink”
port or switch, you will have to use “Uplink” port on the hub for the
connection.
• We also recommend making sure the end node be turned off before
plugging the cable in for the first time. If the plug does not fit well
and the node‘s LAN board is loose, forcible insertion can
momentarily break an internal contact and damage the end node.
Followings are step-by-step instructions for connecting and end node to the
hub using straight-wired twisted-pair cable.
1. Select a port on the hub
2. Plug one end of the cable into the node‘s RJ-45 jack.
3. Plug the cable‘s other end into the selected RJ-45 jack on the hub.
To test and end-node connection, connect the hub to power, then turn the
hub and the end node on. The link indicator for the port should shine
steadily. If it does not, check the cable and all connections.
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Connecting the Hub to Another Hub by Uplink port
You can connect the hub to another 100Base-TX Class II Fast Ethernet hub
using a twisted-pair cable. Never, connect the hub to any other kind of hub,
or to more than one 100Base-TX Class II hub.
Make the connection as follows:
1. Make sure “Uplink” port on the hub is free.
2. Plug one end of the cable into “Uplink” port on the hub.
3. Plug the cable‘s other end into the available port (except “Uplink” port)
on the cascaded hub.
Connecting the Hub to DC Power
After making network connections as described in the preceding sections,
you are ready to plug the hub in and turn it on.
The hub can run on DC power with 12 volt, 1.5A maximum. The external
power supply attached is specialized for 4/8-port fast Ethernet hub. The
input voltage of AC Adapter is depended on the country volts AC and any
frequency from 50 to 60 hertz. The center pole of DC jack is polarity “+”,
and outside polarity “-”.
Before plugging the hub in, make sure the power cord
(1) is long enough to reach an AC wall outlet of an approved type,
(2) has plugs that match both the hub‘s power inlet and the type of wall
outlet you will use, and
(3) conforms to safety regulations in your area.
Hardware Troubleshooting
Symptom: Link indicator remains off
Causes:
Workstation‘s network adapter, cable or hub port is defective.
Solution: The most common cause is a defective network adapter or cable
connection. Check the corresponding cable connections, or the
workstations network adapter for possible defects. Verify that
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the correct cable type is being used. (Note that crossover cable is
only required if you cascade hubs via RJ45 station ports, i.e. an
Uplink port is not used.) Replace the defective cable or adapter.
Some network adapter‘s link indicator need to be initialized by
software driver. Therefore, if no driver is pre-loaded, the hub‘s
link indicator will remain off even the connection completed.
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FN-403/FN-803 User's Manual
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Appendix A
RJ-45 Pin Assignments
Hub's Station
Ports
1-8 (MDI-X port)
1
Input Receive Data +
2
Input Receive Data 3
Output Transmit Data+
6
Output Transmit Data4,5,7,8 Not used
Pin
Uplink Port (MDI-II port)
Output Transmit Data+
Output Transmit DataInput Receive Data +
Input Receive Data Not used
Schematics for both straight and crossover twisted-pair cable are shown
below. (Note that crossover cable is only required if you cascade hubs via
the RJ-45 station ports; i.e. the Uplink port is not used.)
Straight-Through/ Crossover Cable
The pin assignment of the cables both ends should be as below:
Straight-through
Hub (MDI-X)
Adapter(MDI-II)
Pin 1
Pin 1
Pin 2
Pin 2
Pin 3
Pin 3
Pin 6
Pin 6
6
Crossover
Hub (MDI-X)
Hub (MDI-X)
Pin 1
Pin 3
Pin 2
Pin 6
Pin 3
Pin 1
Pin 6
Pin 2
32 1
6 3 21
6
3 21
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Appendix B
Specifications
Transmission Technique
: Baseband
Topology
: Star
Access Method
: CSMA/CD
Transmission Rate
: 100Mbps
Cable types
: Category 5 unshielded, or Type 1 shielded,
100Mbps twisted-pair cabling
Connectors Supported
: Four/Eight 100Base-TX ports with RJ-45
jacks, the “Uplink” port is shared with port#1.
LED Indicators
: System: Power, Collision
Port: Link / Active
Power Supply
: DC 9~12V, 1-1.5A
Dimensions ( WxHxD )
: 103 x 84 x 25 mm / 146 x 84 x 25 mm
Operating temperature
: 0 - 50 degree C
Humidity
: 0% to 90% ( non-condensing)
Electrical standards
: FCC Rules, Part 15, Subpart B, Class A
EN 55022 ( CISPR 22: 1985 ), Class A
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