AirLive Ether-FSH2400N User manual

User’s Manual
Ether-FSH2400N V.1.0
August, 2003
Fast Ethernet Switch
24 × 10/100Mbps
NWay 10/100BASE-TX
Auto MDI/MDI-X
Ether-FSH2400N

Trademarks
All rights reserved.
OvisLink and OvisLink Logo are registered trademarks of OvisLink Corp. Other product
names and company names are trademarks or registered trademarks of their respective
owners.
FCC Warning
This equipment has been tested and found to comply with the requirements for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These requirements are designed for
reasonable protection against harmful interference when the equipment operating in a
commercial environment. This equipment can generate and radiate electromagnetic energy
and, if not installed and used in accordance with this guide, may cause significant
interference with radio communication. Operation of this equipment in a residential area is
likely to cause interference to household appliances, in which case the user will be required
to amend at his or her own expense.
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 take adequate preventive measures.
Disclaimer
Contents in this manual are subject to changes without prior notice.
About this User’s Manual
This User’s Manual aims at helping users to know the key features of
Ether-FSH2400N Fast Ethernet Switch and to install it in a
10/100BASE-TX Fast Ethernet Local Area Network (LAN).

Table of Contents
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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
Table of Contents
TABLE OF CONTENTS ........................................................................................I
1PRODUCT OVERVIEW ........................................................................1
Introduction....................................................................................................................... 1
24 × 10/100Mbps ports Fast Ethernet Switch................................................................. 1
Store-and-Forward Architecture against Packet Loss..................................................... 1
Active Flow Control ....................................................................................................... 1
Full Wire Speed .............................................................................................................. 1
System/Port Status Information at a Glance ................................................................... 2
Product Features............................................................................................................... 3
Basic Features ................................................................................................................. 3
2PREPARATION BEFORE INSTALLATION.........................................4
Unpack the Package.......................................................................................................... 4
The Front Panel.................................................................................................................5
The Rear Panel..................................................................................................................5
Power Switch .................................................................................................................. 5
AC Power Connector ...................................................................................................... 5

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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
3INSTALLATION OF THE SWITCH.......................................................6
Quick Installation..............................................................................................................6
3 Steps to Quick Installation........................................................................................... 6
Rack Mounting.................................................................................................................. 6
Desktop Installation .......................................................................................................... 7
Installation Site Preparation............................................................................................ 7
Cabling Requirements ...................................................................................................... 8
Cable requirement for 100BASE-TX Port...................................................................... 8
Straight-through cabling ................................................................................................. 8
Connecting to Power......................................................................................................... 9
4EXPANDING YOUR NETWORK........................................................11
Connectivity Rules .......................................................................................................... 11
10 Mbps Connection (10BASE-T) ............................................................................... 11
Twisted-pair 100Mbps Connection (100BASE-TX) .................................................... 11
Connecting to another Switch/Hub ............................................................................... 11
Straight-through Cable Connection for Switch-to-Switch/hub Connection ................. 11
Transmission Modes ....................................................................................................... 13
Station Ports (10/100BASE-TX Transmission)............................................................ 13
LAN Micro segmentation through Switching Technology.......................................... 13
5LED INDICATORS..............................................................................14

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Comprehensive LEDs ..................................................................................................... 14
System LED .................................................................................................................. 14
Station Port LEDs ......................................................................................................... 14
Power LED ...................................................................................................................... 14
Diagnostic LEDs.............................................................................................................. 14
Station Port LEDs ........................................................................................................... 15
Link/Act LED ............................................................................................................... 15
FDX LED...................................................................................................................... 15
100M ............................................................................................................................. 15
APPENDIX A PRODUCT SPECIFICATIONS ..................................................16
APPENDIX B TROUBLESHOOTING...............................................................18

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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
Figures
Fig. 2-4 Front Panel ........................................................................................................ 5
Fig. 2-5 Rear Panel ......................................................................................................... 5
Fig. 3-8 Fastening the brackets on the switch................................................................. 6
Fig. 3-9 Attaching the Switch to a 19-inch rack ............................................................. 7
Fig. 3-10 Desktop installation......................................................................................... 7
Fig. 3-11 10/100BASE-TX pin assignments for RJ-45 connector ................................. 8
Fig. 3-12 Pin assignments for straight-through cabling.................................................. 9
Fig 3-13 Connecting the Switch to power outlet .......................................................... 10

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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
Tables
Table 3-1 Cabling type for 10BASE-T/100BASE-TX................................................... 9
Table 5-1 Station Port LEDs......................................................................................... 15

1 Product Overview
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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
1Product Overview
Introduction
24 × 10/100Mbps ports Fast Ethernet Switch
Ether-FSH2400N Fast Ethernet Switch is an auto-sensing and auto-negotiating 10/100ABSE-TX
Fast Ethernet Switch. Its twenty-four 10/100Mbps station ports provide 10/100Mbps connections to
Ethernet/Fast Ethernet network.
Ether-FSH2400N’s unique switching fabric provides full wire speed for all ports. With
auto-sensing, Ether-FSH2400N automatically detects the speed of the devices you plug into, and
routes the incoming data to its destination. Its auto-negotiating function allows existing devices
running at different speeds to communicate easily within the same network.
Store-and-Forward Architecture against Packet Loss
When network is under heavy traffic, the shared memory buffer in the switching devices might yield
incorrect detections due to overfed memory buffer. This setback can happen either when data is
transmitted in IEEE802.3x Full Duplex or Back Pressure Flow Control mode. To solve this problem,
Ether-FSH2400N utilizes a fixed memory buffer allocation with Store-and-forward transmission to
ensure an effective buffer allocation for each port.
Store-and-forward transmission controls data flow from transmitting to receiving nodes with the
receiving buffer threshold adjusted to an optimal value, thus guaranteeing against all possible packet
losses.
Active Flow Control
Ether-FSH2400N Fast Ethernet Switch implements in full duplex mode a flow control that is
compliant with the IEEE 802.3x standard. While in half duplex mode, it employs an optional Back
Pressure Flow Control to stall the incoming data when port buffers are saturated. With this flow
control mechanism, it can be ensured that frames dropped during transmission are reduced to a
minimum.
Full Wire Speed
Ether-FSH2400N’s Full Wire Speed feature provides high-end performance for departmental and
workgroup environments at a fraction of the cost of similar devices. Typically, this feature was
found only in high-end switches designed to handle huge corporate networks. With bandwidth needs
and network efficiency concerns, Ether-FSH2400N’s switching fabric design is the perfect answer
for bandwidth enhancement solution.

1 Product Overview
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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
System/Port Status Information at a Glance
There are 2 sets of LEDs on the front panel: System LEDs and Station Port LEDs.
The System LEDs consist of the Power, ower LED shows Power On/Off status of the switch.
The Station Port LEDs reveal the link status, half/full duplex transmission, 10/100Mbps speed
mode and the collision status of each station port.
For detailed LED information, refer to Chapter 5, LED Indicators.

1 Product Overview
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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
Product Features
The main features of Ether-FSH2400N Fast Ethernet Switch are as follows:
Basic Features
 Fast Ethernet Switch with sixteen 10/100Mbps station ports
 Fully compliant with Ethernet/Fast Ethernet standards:
- IEEE 802.3 (10 BASE-T Ethernet)
- IEEE 802.3u (100 BASE-TX Fast Ethernet)
- ANSI/IEEE Std 802.3 NWay auto-negotiation
 Fixed-port configuration:
- 24 × 10/100 Mbps auto-sensing and auto-negotiating ports (Port #1 ~ 24)
 Easy plug-and-play installation
 Store and Forward transmission to prevent packet loss
 Half/Full Duplex function for all 10/100BASE-TX stations ports
 Auto-sensing and auto-MDI/MDIX function for all 10/100BASE-TX station ports
 Active Flow control to minimize frame drops
- Half Duplex: Back Pressure control
- Full Duplex: IEEE 802.3x compliant flow control
 Comprehensive LED indicators for system/port status monitoring:
System LEDs
- Power (green) LED to indicate power on/off status
- Loop (yellow) : this has no function on Ether-FSH2400N
- Truk (yellow) this has no function on Ether-FSH2400N
Station Port LEDs (for port 1 ~ port24)
- Link/Act (green) LEDsto indicate linking status and activity in 10/100Mpbs mode
- FDX (yellow) LEDs to indicate Half/Full Duplex transmission
- 100M (red) LEDs to indicate 100 Mbps speed
 13 inch rack-mountable
 Cabling distance up to 100 meters for twisted-pair cable

2 Preparation before Installation
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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
2Preparation before Installation
Unpack the Package
Before you begin the installation of Ether-FSH2400N Fast Ethernet Switch, make sure that you
have all the necessary accessories that come with your package. Follow the steps below to unpack
your package contents:
1. Clear out an adequate space to unpack the package carton.
2. Open the package carton and take out the contents carefully.
3. Put back all the shipping materials such as plastic bag, paddings and linings into the package
carton and save them for future transport need.
After unpacking and taking out the entire package contents, you should check whether you have got
the following items:
⌧ Ether-FSH2400N Fast Ethernet Switch
⌧ One AC power cord
⌧ Rack-mounting kit (screws and mounting brackets)
⌧ Support CD-ROM (The PDF version of this User’s Manual can be found within)
If any of these above items is missing or damaged, please contact your local dealer for replacement.

2 Preparation before Installation
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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
The Front Panel
The front panel is where you can find the sixteen 10/100Mbps station ports and the LED indicators.
For the technical specifications of the ports, please refer to Appendix A, Product Specifications for
detailed information. For information concerning LED indicators, please refer to Chapter 5, LED
Indicators.
Fig. 2-4 Front Panel
The Rear Panel
The rear panel is where you can locate the power switch, AC power connector, and ventilator.
Power Switch
You can turn the power switch on /off to activate/deactivate the Switch. To turn on the Switch, press
the switch to the ON position. To turn off, press the switch to the OFF position.
AC Power Connector
This is a three-pronged power connector where the power cord should be attached. Just plug the
female end of the power cord into the connector, and the male end of the power cord into an AC
power outlet. The switch supports an input voltages ranging from 100 ~ 240 VAC @ 50~60 Hz and
with a maximum power output of 40 watts.
Fig. 2-5 Rear Panel
Power LED Station Por
t
LEDs
Power Switch
Power Connector
Station Por
t
s

3 Installation of the Switch
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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
3Installation of the Switch
Quick Installation
Ether-FSH2400N Fast Ethernet Switch is fully compliant with 10/100BASE-TX Fast Ethernet
standards.
3 Steps to Quick Installation
Step 1. Power on the Switch.
Step 2. Connect network devices to the Switch: connect either workstation, server, switch, bridge
or router to the station port (10/100BASE-TX), using 100 ohm unshielded twisted pair (category 5
UTP) or shielded twisted-pair (STP) cable.
Rack Mounting
Ether-FSH2400N Fast Ethernet Switch can also be mounted on a standard size 19-inch rack, which
can in turn be placed in a wiring closet with other equipments.
Before you can mount the switch on the rack, first you must attach the mounting brackets on both
sides of the switch with screws, and then mount it as a unit on the rack.
To mount the unit on a rack, please follow the steps below:
Step 1. First, align the holes on the bracket with the holes on both side of the switch.
Step 2. Insert screws into the holes and then fasten the bracket on one side of the switch with a
screwdriver.
Step 3. Repeat Step 1 and 2 to fasten the bracket on the other side of the switch.
Step 4. Mount the unit on the rack and align the notches on both brackets with mounting holes
on the rack, and then secure the unit with suitable screws.
Fig. 3-8 Fastening the brackets on the switch

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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
Fig. 3-9 Attaching the Switch to a 19-inch rack
Desktop Installation
Ether-FSH2400N Fast Ethernet Switch has four rubber pads attached on each corner of its
underside. These pads serve as cushionings against vibration and prevent the switch from sliding off
its position. They also allow adequate ventilation space when you place the switch on top of another
device.
Fig. 3-10 Desktop installation
• The location you choose to install your switch and the way you configure your network
may greatly affect its performance.
Installation Site Preparation
You can mount Ether-FSH2400N Fast Ethernet Switch either on desktop or on a 19-inch rack. If
you plan to mount the switch on desktop, please choose a steady, level surface in a well-ventilated
area that is free from excessive dust. In any case, the installation site chosen for your switch has to
comply with the following requirements:
• The surface where you want to mount the switch must be able to sustain at least 1.6 kg.
• Do not place heavy objects on top of the switch.
• The location must preferably be free from excessive dust, away from heat vent, hot-air exhaust

3 Installation of the Switch
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and direct sunlight.
• The switch should not be placed near large electric motors or other strong electromagnetic
sources. As a reference, the strength of the electromagnetic field on site should not exceed the
(RFC) standards for IEC 801-3, Level 2(3V/M) field strength.
• The air temperature in the location should be within a range of 32 to 122 °F (0 to 55°C).
• The relative humidity in the location should not exceed 95% non-condensing humidity.
• The distance between the RJ-45 port and the standard network interface should not exceed 100
meters.
• Adequate space should be allowed in front of all the ports, so that each port is easily accessible
for cable connections.
Cabling Requirements
Ether-FSH2400N Fast Ethernet Switch is primarily designed as a central switching device to
provide 10/100Mbps bandwidth to your Ethernet/Fast Ethernet LAN.
Cable requirement for 100BASE-TX Port
Those 24 RJ-45 station ports (MDI-X) all require Cat. 5 twisted-pair UTP/STP cable for connection.
When configuring within the 10/100BASE-TX cabling architecture, the cable distance should be
within 100m.
The following table summarizes the cable requirement for 10/100BASE-TX connection:
10BASE-T 100 ohm Category 3, 4, 5 UTP/STP cable
100BASE-TX 100 ohm Category 5 UTP/STP cable
Straight-through cabling
Under most conditions, the 24 station ports on the Switch accept normal, straight-through cables, i.e.,
standard UTP/STP cables, which are the only ones that can be used with a RJ-45 connector
interface.
Normally, 10BASE-T networks require a straight-through Cat. 3, 4, 5 UTP/STP cabling system.
The cabling system could be found in most existing Ethernet network installations.
100/100BASE-TX networks require Cat. 5 UTP/STP cabling system. The pin assignments for a
straight-through cable are shown in Figure 3-5 and 3-6.
Fig. 3-11 10/100BASE-TX pin assignments for RJ-45 connector

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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
Fig. 3-12 Pin assignments for straight-through cabling
Note:
While connectingEther-FSH2400N to other hub/switch, you don’t have to use a crossover cable
for connection, since Ether-FSH2400N performs auto-crossing over by its Auto-MDI,
Auto-MDI-X function. Simply use the straight-through cable for all types of 100BASE-TX
connections, either to a PC or to a networking device such as other hub or switch.
The table below describes when to use straight-through or crossover cable:
Connection
Specification
Station Port
10BASE-T/100BASE-T
Interface RJ-45
Cable to Use
To an end station Straight-through
twisted-pair cable
To a hub/switch Straight-through
twisted-pair cable
Maximum Distance 100 meters
Table 3-1 Cabling type for 10BASE-T/100BASE-TX
Connecting to Power
Ether-FSH2400N Fast Ethernet Switch features a universal auto-select power supply unit, which
allows a power connection to a wide range of input voltages from 90 to 240VAC @ 50 ~ 60Hz.
To establish its power connection, simply plug the female end of the power cord into the power
connector on the rear of the switch and the male end of the power cord into a suitable power outlet.
Once you have correctly plugged in the power, you can then turn on the Power Switch to activate the
switch.

3 Installation of the Switch
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Fig 3-13 Connecting the Switch to power outlet
Power Outlet
Power Switch
Power Connector

4 Expanding your Network
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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
4Expanding Your Network
Ether-FSH2400N Fast Ethernet Switch is primarily designed as a central switching device to
manage your workgroup/departmental traffic within Ethernet/Fast Ethernet.
The following sections will introduce to you the basics of network connectivity in virtual workgroup
Connectivity Rules
10 Mbps Connection (10BASE-T)
Ethernet connection should be configured according to the following connectivity rules:
• The maximum length for UTP cables must not exceed 100 meters from end station to a
shared-access 10BASE-T hub.
• Between any two end stations in a collision domain, there may be up to five cable segments and
four intermediate repeaters at most.
• If there is a path between any two end-stations containing five segments and four repeaters, then
at least two of the cable segments must be point-to-point link segments (e.g. 10BASE-T or
10BASE-5), while the remaining segments may be of mixed segments (e.g.: 10BASE-2 or
10BASE-5).
Twisted-pair 100Mbps Connection (100BASE-TX)
Copper-wired Fast Ethernet connection should be configured according to the following
connectivity rules:
• The maximum length for STP/UTP cable is 100 meters from end station and a shared-access
100BASE-TX hub.
• The maximum cable length is 100 meters between end station and switch/repeater; and 100
meters between switch and switch/repeater, thus making possible a maximum distance of 300
meters between two end stations.
Connecting to another Switch/Hub
Straight-through Cable Connection for Switch-to-Switch/hub
Connection

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Ether-FSH2400N Fast Ethernet Switch User’s Manual V1.4.1
Use a straight-through cable for the connection made through the station port of Ether-FSH2400N
to any station port of the other switch/hub. Since Ether-FSH2400N Switch is capable of
auto-crossing over by its Auto-MDI and Auto-MDI-X function, you don’t have to use a crossover
cable such as is usually required for this kind of switch-to-switch/hub connection with other switch.
Fig. 4-1 Uplink to another Switch/Hub using straight-through cable
Summary on Connectivity:
 When connecting a PC/hub/switch or any other networking device to the
10/100BASE-TX station port of the Ether-FSH2400N, use a straight-through UTP
cable. No crossover cable is required for Ether-FSH2400N. The 10/100BASE-TX
cabling distance is 100 meters maximum.