Accton Technology cheetahswitch workgroup-3024c User manual

CheetahSwitch Workgroup-3024C
Quick Installation Guide

Quick Installation Guide
CheetahSwitch Workgroup-3024C
High-Density Fast Ethernet Switch
with 24 10BASE-T/100BASE-TX ports

Copyright © 1999 by Accton Technology Corporation. All rights reserved.
No part of this document may be copied or reproduced in any form or by any means without the prior
written consent of Accton Technology Corporation.
Accton makes no warranties with respect to this documentation and disclaims any implied warranties
of merchantability, quality, or fitness for any particular purpose. The information in this document is
subject to change without notice. Accton reserves the right to make revisions to this publication
without obligation to notify any person or entity of any such changes.
International Headquarters USA Headquarters
No. 1 Creation Road III, 6 Hughes
Science-based Industrial Park Irvine, CA 92618
Hsinchu 300, Taiwan, R.O.C. Phone Numbers -
Phone: [phone] Sales: 800-926-9288
FAX: [phone] Support: 888-398-4101 or 949-707-4847
Internet: [email protected] RMA: 800-762-4968
FAX: [phone]
Accton is a trademark of Accton Technology Corporation. Other trademarks or brand names
mentioned herein are trademarks or registered trademarks of their respective companies.
ES3024C
E1299-R02
150068-102

i
Contents
Introduction 1
Installing the Switch 1
Package Contents 1
Description of Hardware 1
Mounting the Switch 2
Stacking Switches on a Flat Surface 2
Mounting Switches in a Rack 2
Connecting the Switch System 3
Making a Connection via an RJ 45 Station Port 3
Making a Connection via an MDI Daisy Chain Port 4
Powering On the Switch 4
Verifying Port Status 5
Verifying System Operation 5
Applications 5
Product Specifications
Base Unit 7
Switching Criteria 7
Troubleshooting 8
Diagnosing Switch Indicators 8
Power and Cooling Problems 8
Installation 8
Port and Cable Assignments 9
RJ 45 Port Description 9
EMI Certification 9
FCC Class A Certification (USA) 9
Canada Department of Communications Class A 10
VCCI Class A Compliance (Japan) 10
CE Mark Declaration of Conformance for EMI and Safety (EEC) 10
Safety Compliance 11
Underwriters Laboratories Inc. (USA) 11
Wichtige Sicherheitshinweise (Germany) 11
Warranty 12

ii

Quick Installation Guide
1
1
Introduction
The CheetahSwitch Workgroup-3024C is a high-density
switch thats perfect for moving arge workgroups from
conventiona 10Mbps Ethernet to mu tip e-segment
100Mbps Fast Ethernet. This switch de ivers dedicated
100Mbps inks to each attached LAN segment
(independent co ision domain) or any PC attached direct y
to the switch  a with conventiona cab ing and adapters. It
comp ete y e iminates the bott enecks of shared 10Mbps Ethernet networks by
providing a wide bandwidth of up to 4.8 Gbps. This makes it idea for increasing
the throughput of interconnected Ethernet / Fast Ethernet hubs or server farms.
Installing the Switch
Before insta ing the switch, p ease verify that you have a the items isted under
Package Contents. If any of the items are missing or damaged, contact your
oca Accton distributor. A so be sure you have a the necessary too s and
cab ing before insta ing the switch.
Package Contents
The CheetahSwitch Workgroup-3024C inc udes:
CheetahSwitch Workgroup-3024C (Mode No. ES3024C)
High-Density Fast Ethernet Switch with 24 10/100BASE-TX Ports
Four rubber foot pads This Guide
AC power cord Owner registration card
Rack mount bracket kit
Description of Hardware
The CheetahSwitch Workgroup-3024C base unit contains 24 10/100BASE-TX
ports. A 100BASE-TX ports operate at 10 or 100 Mbps, support auto-negotiation,
and ha f or fu dup ex, so the transmission speed and mode wi be automatica y
set if this feature is a so supported by the attached device.
The fo owing figure shows the components of this switch:

CheetahSwitch Workgroup-3024C
2
Mounting the Switch
This switch can be p aced direct y on your desktop, or mounted in a rack.
Before you start insta ing the switch, make sure you can provide the right
operating environment, inc uding power requirements, sufficient physica space,
and proximity to other network devices that are to be connected. Verify the
fo owing insta ation requirements:
 Power requirements: 100 to 240 VAC (±10%) at 50 to 60 Hz (±3Hz). The
switchs power supp y automatica y adjusts to the input vo tage eve .
 The switch shou d be ocated in a coo dry p ace, with at east 10 cm. (4 in.) of
space at the front and sides for venti ation.
 P ace the switch out of direct sun ight, and away from heat sources or areas with
a high amount of e ectromagnetic interference.
 If you intend to mount the switch in a rack, make sure you have a the
necessary mounting screws, brackets, bo ts and nuts, and the right too s.
 Check if network cab es and connectors needed for insta ation are avai ab e.
Stacking Switches on a Flat Surface
The CheetahSwitch can be stacked
anywhere there is enough f at space,
such as on a tab e or desktop.
1. Stick the se f-adhesive rubber foot
pads (that come with this package) on
each of the 4 concave spaces ocated on the
bottom of the first switch.
2. P ace the first switch on a firm f at surface where you want to insta the stack.
3. Repeat step 1 for each switch before stacking them. The rubber foot pads
cushion the switch against shock/vibrations and provide space between each
switch for venti ation.
Mounting Switches in a Rack
P ease comp y with the fo owing
instructions to ensure that your switch
is secure y mounted in the rack.
1. Use a standard EIA 19-inch rack.
2. Use the brackets and screws
supp ied in the rack mounting kit.
3. Use a cross-head screwdriver to attach
the brackets to the side of the switch.
4. Position the switch in the rack by ining up the ho es in the
brackets with the appropriate ho es on the rack, and then use the
supp ied screws to mount the switch in the rack.

Quick Installation Guide
3
3
Connecting the Switch System
The CheetahSwitch provides 24 RJ-45 ports on the unit. Each of these ports
support connection to 10Mbps Ethernet or 100Mbps Fast Ethernet, and supports
fu or ha f-dup ex operation. The transmission speed for each port is automatica y
set by the switch to match the highest speed supported by the connected device.
The transmission mode can be set for each port using auto-negotiation (if a so
supported by the attached device).
Note: If the device connected to any port on the switch must operate at full duplex,
then it must support auto-negotiation.
Making a Connection via an RJ-45 Station Port
You can connect any RJ-45 (MDI-X) station port on the switch to any device that
uses a standard network interface such as a workstation or server, or to a network
interconnection device such as a bridge or router (depending on the port type
imp emented).
1. Prepare the network devices you wish to network. Make sure you have
insta ed 10BASE-T or 100BASE-TX network interface cards for connecting to
the switchs RJ-45 (MDI-X) station ports.
2. Prepare straight-through shie ded or unshie ded twisted-pair cab es with
RJ-45 p ugs at both ends. Use 100Ω Category 3, 4 or 5 cab e for standard
10Mbps Ethernet connections, or 100Ω Category 5 cab e for 100Mbps Fast
Ethernet connections.
3. Connect one end of the cab e to the RJ-45 port of the network interface card,
and the other end to any avai ab e (MDI-X) station port on the switch. A the
RJ-45 ports support 10Mbps and 100Mbps Ethernet connections. When
inserting an RJ-45 p ug, be sure the tab on the p ug c icks into position to
ensure that it is proper y seated. Using the switch in a stand-a one
configuration, you can network up to 24 end nodes.
IDo not plug a phone jack connector into any RJ- 5 port. This may damage the
switch. Instead, use only twisted-pair cables with RJ- 5 connectors that conform
with FCC standards.
Notes: 1. Make sure each twisted-pair cable does not exceed 100 meters (328 feet).
2. We advise using Category 5 cable for all network connections to avoid any
confusion or inconvenience in the future when you upgrade attached
devices to Fast Ethernet.

CheetahSwitch Workgroup-3024C
4
Making a Connection via an MDI Daisy-Chain Port
To make a direct connection to another compatib e switch or hub, fo ow these
steps:
1. Use Port 24 on the switch, and set it to MDI for a daisy-chain connection.
2. Prepare straight-through shie ded or unshie ded twisted-pair cab es with
RJ-45 p ugs at both ends. Use 100Ω Category 3, 4 or 5 cab e for standard
10Mbps Ethernet connections, or 100Ω Category 5 cab e for 100Mbps Fast
Ethernet connections.
3. Connect one end of the cab e to Port 24 MDI on the switch, and the other end
to any MDI-X station port on the other device. When inserting an RJ-45 p ug,
be sure the tab on the p ug c icks into position to ensure that it is proper y
seated.
Notes: 1. Alternatively, you can connect from an MDI-X port on the switch to an MDI
daisy-chain port on the other device. Or attach crossover cabling to
(MDI-X) station ports at both ends.
2. Make sure each twisted-pair cable does not exceed 100 meters (328 feet).
Restrictions on Cascade Length - The IEEE 802.3 standard recommends
restricting the number of hubs (i.e., repeaters) cascaded via twisted-pair cab e
to 4; whi e IEEE 802.3u provides even stricter recommendations for Fast
Ethernet. Therefore, when cascading devices other than this switch, p ease refer
to the accompanying documentation for cascade restrictions. However, note that
because switches break up the path for connected devices into separate co ision
domains, you shou d not inc ude the switch or connected cab ing in your
ca cu ations for cascade ength invo ving other devices.
Powering On the Switch
1. P ug the power cord into the power socket at the rear of the switch, and the
other end into a power out et.
2. Check the LED marked Power on the front pane to see if it is on. The unit wi
automatica y se ect the setting that matches the connected input vo tage.
Therefore, no additiona adjustments are necessary when connecting it to any
input vo tage within the range marked on the rear pane .
3. The switch performs a se f-diagnostic test upon power-on. (Note that this test
takes about 10 seconds to comp ete.)
Note: The unit supports a hot remove feature which permits you to connect/
disconnect RJ- 5 cables without powering off the switch and without
disrupting the operation of the devices attached to the switch.

Quick Installation Guide
5
5
Verifying Port Status
Check each connection by viewing the port status indicators shown in the fo owing
figure and tab e.
LED State Indication
Power On Switch is receiving power.
Link/Act On Port has established a valid network connection.
Flashing Traffic is traversing the port.
100M On Communications have been set to at 100 Mbps.
FDX On Communications have been setto full duplex.
Verifying System Operation
Verify that a attached devices have a va id connection. The switch monitors the
ink status for each port. If any device is proper y connected to the switch and
transmitting a ink beat signa , the Link indicator wi ight up for the corresponding
port. If the Link indicator fai s to ight when you connect a device to the switch,
check the fo owing items:
Both sides of each connection must use the same transmission mode (i.e., ha f
or fu dup ex). If any device connected to an RJ-45 port must operate at fu
dup ex, be sure it supports auto-negotiation.
Be sure a network cab es and connectors are proper y attached to the
connected device and the switch.
See if your cab e is functioning proper y by using it for another port and
attached device that disp ays va id indications when connected to the network.
Be sure no twisted-pair cab e exceeds 100 meters (328 feet).
Applications
This switch segments your network, significant y increasing both bandwidth and
throughput. Any port on the switch can be attached to a hub (i.e., shared co ision
domain) or provide a dedicated ink to a sing e network device (e.g., a
workstation). When a port on the switch is connected to a hub (i.e., a 10 or 100
Mbps repeater), the bandwidth provided by that port is shared by a the devices
connected to the attached hub. However, when a port is connected to an end
node or to a device that breaks up the co ision domain (e.g., another switch,
bridge or router), the attached device has access to the fu bandwidth provided
by that port.

CheetahSwitch Workgroup-3024C
6
Bridging Functions - This switch provides fu y transparent bridging functions. It
automatica y earns node addresses, that are subsequent y used to fi ter and
forward a traffic based on the destination address. When traffic passes between
devices attached to the same shared co ision domain, those packets are fi tered
from the switch. But when traffic must be passed between unique segments (i.e.,
different ports on the switch), the high-speed switching fabric forwards the packets
at near zero atency.
Switching Functions - Store-and-forward switching is used to forward traffic to
other ports. This scheme ensures data integrity and provides a c ean data stream.
Flexible Configuration - This switch is not on y designed to segment your
network, but a so to provide a wide range of options in setting up network
connections. It can be used as a simp e stand-a one switch; or can be connected
with standard repeater hubs, switches, or other network interconnection devices in
various configurations.

Quick Installation Guide
7
7
Product Specifications
Base Unit
Access Method CSMA/CD, 10 Mbps or 100 Mbps
Standards Conformance IEEE 802.3, IEEE 802.3u
Communication Rate 10/100 Mbps
Communication Mode Fu or ha f dup ex
Media Supported 10BASE-T - 100WCategory 3,4,5 twisted-pair
100BASE-TX - 100WCategory 5 twisted-pair
Number of Ports 24 RJ-45 100BASE-TX ports
Indicator Pane System: Power
Ports: Link/Act, 100M, FDX(fu /ha f dup ex)
Dimensions 440 x 172 x 43 mm (17.32 x 6.77 x 1.69 in)
Weight 2.5 kg (5.5 b)
Input Power Fu range: 100 to 240V (±10%), 50 to 60 Hz (±3Hz)
Power Consumption 40 Watts max. @ 100-240 VAC
Heat Dissipation 136.48 BTU/hr max. @ 100-240 VAC
Maximum Current (@110/240V) 0.3/0.15 ARMS
Temperature 0°C to 50°C (32 to 122°F) Standard Operating,
-40 to 70°C (-40 to 158°F) Storage
Humidity 5% to 95% (Noncondensing)
Certification CE Mark
Emissions FCC C ass A, VCCI C ass A, CISPR C ass A
Immunity IEC 1000-4-2/3/4/6
Safety CSA/NRTL (C22.2.950,UL1950), TÜV/GS
(EN60950)
Switching Criteria
Network Bridging Function Fi tering, forwarding and earning
Switching Method Store-and-forward
Address Tab e 8K entries
Fi tering/Forwarding Rate Line speed
F ow Contro Ha f-dup ex using back pressure
Fu -dup ex using IEEE802.3x

CheetahSwitch Workgroup-3024C
8
Troubleshooting
Diagnosing Switch Indicators
The switch can be easi y monitored through pane indicators to assist the
network manager in identifying prob ems. This section describes common
prob ems you may encounter and possib e so utions.
Symptom: Link indicator does not light up (green) after making a connection.
Cause: Network interface (e.g., a network adapter card on the attached device),
network cable, or switch port is defective.
Solution: Verify that the switch and attached device are powered on. Be sure the
cable is plugged into both the switch and corresponding device. Verify
that the proper cable type is used and its length does not exceed
specified limits. Check the adapter on the attached device and cable
connections for possible defects. Replace the defective adapter or cable
if necessary.
Symptom: Power indicator does not light up (green) after power on.
Cause: Defective power outlet, power cord, or internal power supply.
Solution: Check the power outlet by plugging in another device that is functioning
properly. Check the power cord with another device. If these measures
fail to resolve the problem, have the unit's power supply replaced by an
qualified Accton distributor.
Power and Cooling Problems
If the power indicator does not turn on when the power cord is p ugged in, you may
have a prob em with the power out et, power cord, or interna power supp y as
exp ained in the previous section. However, if the unit powers off after running for a
whi e, check for oose power connections, power osses or surges at the power
out et, and verify that the fans on the side of the unit are unobstructed and running
prior to shutdown. If you sti cannot iso ate the prob em, then the interna power
supp y may be defective. In this case, contact your Accton distributor for
assistance.
Installation
Verify that a system components have been proper y insta ed. If one or more
components appear to be ma functioning (e.g., the power cord or network cab ing),
test them in an a ternate environment where you are sure that a the other
components are functioning proper y.

Quick Installation Guide
9
9
Port and Cable Assignments
RJ-45 Port Description
RJ-45 station ports (MDI-X) can be attached to any devices which use a standard
network interface (e.g., a workstation, server, bridge or router). RJ-45 daisy-chain
ports (MDI) can be cascaded to a station port on simi ar networking devices (e.g.,
another switch or hub). Use unshie ded twisted-pair (UTP) or shie ded twisted-pair
(STP) cab e for RJ-45 connections: 100W Category 3, 4 or 5 cab e for 10 Mbps
connections or 100W Category 5 cab e for 100 Mbps connections. A so be sure
that the ength of any twisted-pair connection does not exceed 100 meters (328
feet).
Pin Assignment
(Station Port) Assignment (Daisy-Chain Port, other device)
1 Input Receive Data + Output Transmit Data +
2 Input Receive Data - Output Transmit Data -
3 Output Transmit Data + Input Receive Data +
6 Output Transmit Data - Input Receive Data -
4,5,7,8 Not Used Not Used
Schematics for both straight and crossover twisted-pair cab e are shown be ow.
Straight-Through Crossover
(Switch) (Adapter) (Switch) (Switch)
1 IRD+ 1 OTD+ 1 IRD+ 1 IRD+
2 IRD- 2 OTD- 2 IRD- 2 IRD-
3 OTD+ 3 IRD+ 3 OTD+ 3 OTD+
6 OTD- 6 IRD- 6 OTD- 6 OTD-
EMI Certification
FCC Class A Certification (USA)
Warning: This equipment generates, uses, and can radiate radio frequency
energy and, if not insta ed and used in accordance with the instruction manua ,
may cause interference to radio communications. It has been tested and found to
comp y with the imits for a C ass A digita device pursuant to Subpart B of Part
15 of FCC Ru es, which are designed to provide reasonab e protection against
such interference when operated in a commercia environment. Operation of this
equipment in a residentia area is ike y to cause interference, in which case the
user, at his own expense, wi be required to take whatever measures are
required to correct the interference.
You may use unshie ded twisted-pair (UTP) for RJ-45 connections - Category 3
or greater for 10Mbps connections, and Category 5 for 100Mbps connections.

CheetahSwitch Workgroup-3024C
10
Canada Department of Communications - Class A
This digita apparatus does not exceed the C ass A imits for radio noise
emissions from digita apparatus as set out in the interfer-ence-causing
equipment standard entit ed "Digita Apparatus", ICES-003 of the Department of
Communications.
Cet apparei numérique respecte es imites de bruits radioé ectriques app icab es
aux apparei s numériques de C asse A prescrites dans a norme sur e matérie
broui eur : "Apparei s Numérques", NMB-003 édictée par e ministère des
Communications.
VCCI Class A Compliance (Japan)
CE Mark Declaration of Conformance for EMI and Safety (EEC)
This is to certify that this product comp ies with ISO/IEC Guide 22 and EN45014.
It conforms to the fo owing specifications:
EMC: EN55022(1988)/CISPR-22(1985) class A
EN60555-2(1995) class A
EN60555-3
IEC1000-4-2(1995) 4kV CD 8kV AD
IEC1000-4-3(1995) 3V/m
IEC1000-4-4(1995) 1kV - (power line)
0.5kV - (signal line)
IEC1000-4-6(1995) 3Vrms
This product comp ies with the requirements of the Low Vo tage Directive 73/23/
EEC and the EMC Directive 89/336/EEC, and carries the CE Mark according y.
Warning! Do not p ug a phone jack connector in the RJ-45 port. This may
damage this device. Les raccordeurs ne sont pas uti isé pour e système
té éphonique!

Quick Installation Guide
11
11
Safety Compliance
Underwriters Laboratories Inc. (USA)
Important! Before making connections, make sure you have the correct Cord
Set. Check it (read the abe on the cab e) against the fo owing specification ist.
egatloV snoitacificepSteSdroC
stloV021teSdroCdeifitreCASC/detsiLLU
drocrotcudnoceerhtTJSroTVSepyt;GWA81uiniM
teef51fohtgneluixaM
V521,A51detargulptnehcattaepytgnidnuorg,edalblellaraP
stloV042teSdroCdeifitreCASC/detsiLLU
)acireAhtroN(drocrotcudnoceerhtTJSroTVSepyt;GWA81uiniM
teef51fohtgneluixaM
V521,A51detargulptnehcattaepytgnidnuorg,edalbednaT
stloV042 )ylnoeporuE( htiwsrotcudnoceerhtgnivahdrocF-VV50HhtiwteSdroC ²57.0foreteaiduini V052,A01detargulpela;elcatpecer023-CEI
Wichtige Sicherheitshinweise (Germany)
1. Bitte lesen Sie diese Hinweise sorgfältig durch.
2. Heben Sie diese Anleitung für den späteren Gebrauch auf.
3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie keine
Flüssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur
Reinigung.
. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht zugänglich sein.
5. Das Gerät ist vor Feuchtigkeit zu schützen.
6. Bei der Aufstellung des Gerätes ist auf sicheren Stand zu achten. Ein Kippen oder Fallen
könnte Beschädigungen hervorrufen.
7. Die Belüftungsöffnungen dienen der Luftzirkulation, die das Gerät vor Überhitzung schützt.
Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt werden.
8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.
9. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollte
auch nichts auf der Leitung abgestellt werden.
10. Alle Hinweise und Warnungen, die sich am Gerät befinden, sind zu beachten.
11. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz
trennen. Somit wird im Falle einer Überspannung eine Beschädigung vermieden.
12. Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das
Gerät gelangen. Dies könnte einen Brand bzw. elektrischen Schlag auslösen.
13. Öffnen sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit
nur von authorisiertem Servicepersonal geöffnet werden.

CheetahSwitch Workgroup-3024C
12
1 . Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von
einer qualifizierten Servicestelle zu überprüfen:
a. Netzkabel oder Netzstecker sind beschädigt.
b. Flüssigkeit ist in das Gerät eingedrungen.
c. Das Gerät war Feuchtigkeit ausgesetzt.
d. Wenn das Gerät nicht der Bedienungsanleitung entsprechend funktioniert oder
Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen.
e. Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt.
f. Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.
15. Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden. Für einen
Nennstrom bis 6A und einem Gerätegewicht größer 3kg ist eine Leitung nicht leichter als
H05VV-F, 3G, 0.75mm2 einzusetzen.
Der arbeitsplatzbezogene Schalldruckpegel nach DIN 5 635 Teil 1000 beträgt
70dB(A) oder weniger.
Warranty
Accton warrants to the origina owner that the product de ivered in this package
wi be free from defects in materia and workmanship for a period of three (3)
years from the date of purchase from Accton or its Authorized rese er. For the
warranty to app y, you must register your purchase by returning the registration
card indicating the date of purchase and inc uding proof of purchase. There wi
be a minima charge to rep ace consumab e components, such as fuses, power
transformers, and mechanica coo ing devices. The warranty does not cover the
product if it is damaged in the process of being insta ed. Accton recommends
that you have the company from whom you purchased this product insta it.
THE ABOVE WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, WHETHER
EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO ANY
WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, OR ANY WARRANTY ARISING OUT OF ANY PROPOSAL,
SPECIFICATION OR SAMPLE. ACCTON SHALL NOT BE LIABLE FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES. ACCTON NEITHER ASSUMES
NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY OTHER
LIABILITY.

ES3024C
E1199-R02
150068-102