Accton Technology CHEETAHUB POWER-3012A User`s guide

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Accton Technology CHEETAHUB POWER-3012A User`s guide | Manualzz
Appendix A: Troubleshooting
Diagnosing Hub Indicators
This Fast Ethernet hub can be easily monitored through its comprehensive
panel indicators. These indicators assist the network manager in identifying
problems the hub may encounter. This section describes common problems
you may encounter and possible solutions.
Symptom: Power indicator does not light up.
Cause:
Defective power outlet, power cord, or internal power supply.
Solution: Have your unit’s power supply or Power LED replaced. Ask for
dealer assistance.
Symptom: Partition indicator lights up.
Cause:
Hub has partitioned a port.
Solution: If port partitioning has occurred, the hub will automatically enable
the port when the faulty condition disappears.
Symptom: Link/Traffic indicator remains unlit after making a connection.
Cause:
Workstation’s network adapter, the cable, or the hub port is defective.
Solution: Verify that the hub and attached device are powered on. Be sure the
cable is plugged into both the hub and corresponding device. Verify
that the proper cable type is used (Chapter 2), and that its length
does not exceed 100 meters (328 feet). Check the adapter on the
attached device and cable connections for possible defects. Replace
the defective adapter or cable if necessary
Use the diagnostic procedures described in the following section to verify that
all other system components are functioning properly. If you still cannot
resolve the problem, contact your Accton distributor for assistance.
Troubleshooting
A-1
CheetaHub Power-3012A User’s Guide
System Diagnostics
Power and Cooling Problems
If the Power indicator does not turn on when the power cord is plugged in,
you may have a problem with the power outlet, power cord, or internal power
supply as explained in the previous section. However, if the unit powers off
after running for a while, check for loose power connections, power losses or
surges at the power outlet, and verify that the fan on back of the unit is
unobstructed and running prior to shutdown. If you still cannot isolate the
problem, then the internal power supply may be defective. In this case, contact
your Accton distributor for assistance.
Installation
Verify that all system components have been properly installed. If one or more
components appear to be malfunctioning (e.g., the power cord or network
cabling), test them in an alternate environment where you are sure that all the
other components are functioning properly.
Cabling
1. Verify that the cabling type is correct. Be sure all cable connectors are
securely seated in the required ports. Use 100W Category 5 straight-through
cable for all standard twisted-pair connections.
2. Make sure all devices are connected to the network. Equipment may have
been unintentionally disconnected from the network.
3. This is a Class I hub and cannot be connected to another hub via any of the
RJ-45 ports on the front panel. If you must connect to another hub, you can
use one of the optional switch modules.
4. If you want to connect to a switch, use an RJ-45 MDI to MDI-X connection.
If you must cascade to a switch using MDI-X ports at both ends of the cable
A-2
Troubleshooting
CheetaHub Power-3012A User’s Guide
(i.e., not the MDI port), make sure a crossover cable is used. Crossover cable
should only be used if an MDI daisy-chain port is not available. Also note
that the maximum cable length for a fiber optic connection is 2 kilometers
(1.24 miles) for full duplex and 412 meters (0.25 miles) for half duplex.
Transmission Mode
When you use an optional switch module, verify that the attached device
supports auto-negotiation if it must operate at full duplex.
External Adapters
Make sure the network interface hardware and software drivers for the attached
devices are function properly. Check the adapter cards and associated drivers
used in any attached workstation or server.
Physical Configuration
If problems occur after altering the network configuration, restore the original
connections, then try to track the problem down by implementing the new
changes, one step at a time. Ensure that cable distances and other physical
aspects of the installation do not exceed recommendations.
System Integrity
As a last resort verify the hub’s integrity with a power-on reset. Turn the
power to the hub off and then on a few times. If the problem still persists and
you have completed all the preceding diagnoses, contact your Accton
distributor for further assistance. (Refer to Appendix E.)
Troubleshooting
A-3
Appendix B:
Port and Cable Assignments
RJ-45 Port
Figure B-1 RJ-45 Connector (on the Hub Side)
Pin
1
2
3
6
4,5,7,8
MDI-X Assignment
(Station Port 1 ~ 12)
Input Receive Data +
Input Receive Data Output Transmit Data +
Output Transmit Data Not Used
MDI Assignment
(Cascade Port 12)
Output Transmit Data +
Output Transmit Data Input Receive Data +
Input Receive Data Not Used
Table B-1 RJ-45 Pin Assignments
Schematics for both straight and crossover twisted-pair cable are shown below.
Straight-Through
(Hub)
1
2
3
6
IRD+
IRDOTD+
OTD-
(Adapter)
1
2
3
6
OTD+
OTDIRD+
IRD-
Crossover
(Hub)
(Hub)
1
2
3
6
1
2
3
6
IRD+
IRDOTD+
OTD-
Cable and Port Assignments
IRD+
IRDOTD+
OTD-
B-1
Appendix C: Product Specifications
Transmission Technique
Topology
Access Method
Standards Conformance
Media Supported
Interfaces
Hub-to-Workstation Distance
Maximum Stack Size
Dimensions
Power Input
Power Consumption
Temperature
Humidity
Certification
Emissions
Immunity
Safety
Baseband
Star or Tree
CSMA/CD, 100Mbps
IEEE 802.3u 100BASE-TX Class I Repeater
Unshielded or shielded twisted-pair cable
(100W Category 5 STP/UTP)
12 RJ-45 MDI-X station ports, (Port 12 can be switched to
function as an MDI-X station port or MDI daisy-chain port);
2 backplane ports for stack interconnection; and 1 slot for an
optional 100BASE-TX or 100BASE-FX switch module
100 meters maximum using category 5 STP or UTP cable
5 hubs
440 x 240 x 43 mm (17.32 x 9.44 x 1.69 in)
100 to 240 VAC (™10%), 50 to 60 Hz (™ 3%)
2 Amp max. @ 100 VAC, 1 Amp @ 240 VAC
0°C to 40°C (Standard Operating)
5% to 95% (Noncondensing)
CE Mark
FCC Class B, VCCI Class B, CISPR 22 Class B
IEC 1000-4-2,3,4,6
UL, CSA, TÜV/GS
Product Specifications
C-1
Appendix D:
Regulatory Standards Compliance
EMI Certification
FCC Class B Certification
Accton Technology Corporation
Model Numbers: EH3012A
FCC ID: HED 3012AEH-TX
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that
may cause undesired operation.
Warning! This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
•
•
•
•
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from the one which the receiver is
connected to
Consult the dealer or an experienced radio/TV technician for help
You are cautioned that changes or modifications not expressly approved by the party
responsible for compliance could void your authority to operate the equipment.
Regulatory Standards Compliance
D-1
Fast EtherHub-12s User’s Guide
Warnings 1. Wear an anti-static wrist strap or take other suitable measures to prevent
electrostatic discharge whenever handling this equipment.
2. When connecting this device to a power outlet, connect the field ground
lead on the tri-pole power plug to a valid earth ground line to prevent
electrical hazards.
You may find the following booklet prepared by the Federal Communications
Commission helpful:
The Interference Handbook
This booklet is available from the U.S. Government Printing Office. Washington, D.C.
20402. Stock No. 004-000-00345-4.
Note: In order to maintain compliance with the limits of a Class B digital device, Accton
requires that you use a quality interface cable when connecting to this device. Changes
or modifications not expressly approved by Accton could void the user’s authority to
operate this equipment. Suggested cable type is:
• Twisted-pair for RJ-45 connections: 100WCategory 5 STP or UTP
Voluntary Control Council for Interference (VCCI-B)
European Community Immunity Requirements
This unit was tested and found to comply with the Class B limits of EN55022 (CISPR
22) and the immunity requirements of EN50082-1.
D-2
Regulatory Standards Compliance
Fast EtherHub-12s User’s Guide
CE Mark Declaration of Conformance (for EMI and Safety)
This is to certify that this product complies with ISO/IEC Guide 22 and EN45014.
It conforms to the following specifications:
EMC:
EN55022(1988)/CISPR-22(1985)
EN60555-2(1987)
EN60555-3
IEC1000-4-2(1995)
IEC1000-4-3(1995)
class B
class B
IEC1000-4-4(1995)
1kV - (power line), 0.5kV - (signal line)
IEC1000-4-6
3Vrms
CD 4kV, AD 8kV
3V/m
This product complies with the requirements of the Low Voltage Directive 73/23/EEC
and the EMC Directive 89/336/EEC.
Warning!
Do not plug a phone jack connector in the RJ-45 port. This may damage the hub.
Les raccordeurs ne sont pas utilisé pour le système téléphonique!
Regulatory Standards Compliance
D-3
Fast EtherHub-12s User’s Guide
Safety Compliance
Underwriters Laboratories Inc.
Important! Before making connections, make sure you have the correct Cord Set.
Check it (read the label on the cable) against the following specification list.
Operating Voltage
Cord Set Specifications
120 Volts
240 Volts (For North America)
240 Volts (For Europe only)
UL Listed/CSA Certified Cord Set
Minimum 18 AWG
Type SVT or SJT three conductor cord
Maximum length of 15 feet
Parallel blade, grounding type attachment plug rated 15A, 125V
UL Listed/CSA Certified Cord Set
Minimum 18 AWG
Type SVT or SJT three conductor cord
Maximum length of 15 feet
Tandem blade, grounding type attachment plug rated 15A, 125V
Cord Set with H05VV-F cord having three conductors with minimum
diameter of 0.75 mm2
IEC-320 receptacle
Male plug rated 6A, 250V
The unit will automatically select the setting that matches the input voltage connected.
Therefore, no additional adjustments are necessary when connecting it to any input
voltage within the range marked on the rear panel.
D-4
Regulatory Standards Compliance
Fast EtherHub-12s User’s Guide
Wichtige Sicherheitshinweise
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.
4. 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.
14. 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.
Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 beträgt 70dB(A) oder
weniger.
Regulatory Standards Compliance
D-5
Appendix E:
Product Support Services
Product Registration
Fill in the Owner Registration Card and mail it to Accton Technology Corporation.
Accton will keep your record and inform you of any new Accton unit developments.
Problem Report
If problems occur during unit operation, please check the adapter configuration settings,
cables, connectors, network terminators, hardware compatibility and other network
components.
Write a description of the problem, including what problems occurred, when they
occurred, duration of the problems, the unit number, serial number, hardware, software
and the DOS version that you are using. Then contact your dealer or Accton Technology
Corporation for assistance.
Hardware Repair Service
You must get an RMA (Return Materials Authorization) number before returning any
hardware for repair. To obtain this number please inform Accton of your company
name, address, unit name and model number, contact person, telephone number, and a
problem description list. If your unit is under repair warranty you must also give your
purchase date. Carefully pack your hardware. If possible, use the original carton. Mark
the RMA number on the carton and send it to your dealer.
Product Support Services
E-1
CheetaHub Power-3012A User’s Guide
After repair, Accton will inform you of the date of delivery and the exact amount due.
Please send the payment by T/T (Telegram Transfer), and Accton will send you the
fixed component after receiving payment. With or without warranty, if the hardware is
found to be free of defects, you will only be charged for testing and handling.
Bulletin Board Service (BBS)
• In countries other than the U.S., call 886-3-5770-654 to reach Accton Taiwan’s
modem line. Modems with 14400 through 2400 baud are supported. Choose 8 data
bits, 1 stop bit and no parity. Standard VT100 terminal emulation is supported
• In the United States, call 408-452-8828 to reach the Accton USA’s BBS line.
Modems with 14400 through 2400 baud are supported. Choose 8 data bits, 1 stop bit
and none parity. Standard VT100 terminal emulation is supported.
Interactive Fast Fax (U.S.A. office)
Printed technical documentation can be faxed to your FAX machine, 24-hours a day.
• Call 408-452-8811 to reach Accton’s interactive Fast FAX service. You will need a
Touch-Tone phone and a FAX machine (or equivalent). Choose document 911 for a
listing of technical bulletins.
E-2
Product Support Services
CheetaHub Power-3012A User’s Guide
Technical Support
Your dealer or installer is the person who understands your network and Accton units.
If neither is available to help you, Accton technical support engineers are available by
FAX, mail or phone.
• Send your technical questions by FAX to:
International Headquarters: 886-3-5770-267
USA Headquarters: 408-452-8988
• To obtain software upgrades connect via ftp to ftp.accton.com.tw
• Send your technical questions by email to [email protected]
• Mail your technical questions to:
International Headquarters
Accton Technology Corporation
Attn: Technical Support
No. 1 Creation Road III
Science-based Industrial Park
Hsinchu 300, Taiwan, R.O.C.
USA Headquarters
Accton Technology
Corporation
Attn: Technical Support
1962 Zanker Road,
San Jose, CA 95112, U.S.A.
During local business hours, call:
International Headquarters
(Monday through Friday,
8 am to 6 p.m.):
886-3-5770-270
USA Headquarters
(Monday through Friday,
7 am to 5 p.m. Pacific Time):
408-452-8900 or 800-926-9288
Product Support Services
E-3
CheetaHub Power-3012A User’s Guide
Limited Warranty
Accton warrants to the original owner that the product delivered in this package will be free from
defects in material and workmanship for the lifetime of the product. For the warranty to apply, you
must register your purchase by returning the registration card indicating the date of purchase and
including proof of purchase. There will be a minimal charge to replace consumable components, such
as fuses, power transformers, and mechanical cooling devices. The warranty does not cover the product
if it is damaged in the process of being installed. Accton recommends that you have the company from
whom you purchased this product install 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.
Customer Remedies
If the product is found to be defective within the first two years from the later of date of purchase or
date of manufacture, Accton’s entire liability and your exclusive remedy for any breach of warranty,
shall be, at its option, to repair or replace the product at no charge except as set forth below. If the
product is found to be defective after two years from the later of date of purchase or date of
manufacture, Accton will charge a process and handling fee, provided that you deliver the product along
with a return material authorization (RMA) number either to the company from whom you purchased it
or to Accton. Accton warrants the repaired or replaced product to be free from defects in material and
workmanship for the remainder of the original product’s warranty period. Consumable components are
warranted only for two years.
E-4
Product Support Services
CheetaHub Power-3012A User’s Guide
Return Process
Before you may return any Accton product to Accton, you must request an RMA number by calling,
FAXing or writing Accton’s Service Department at the address listed below. If you ship the product,
you must assume the risk of damage or loss in transit. You must use the original container (or the
equivalent) and pay the shipping charge. Accton may replace or repair the product with either a new or
reconditioned product, and the returned product becomes Accton’s property. At Accton’s sole
discretion, Accton will issue a credit for either a comparable replacement Accton product or credit the
original purchase price towards the purchase of any Accton product for any unrepairable, defective
product.
This warranty does not cover replacement of products damaged by abuse, accident, misuse, neglect,
alteration, repair, disaster, improper installation or improper testing.
ACCTON SHALL NOT BE HELD LIABLE FOR ANY LOSS OF PROFITS, LOSS OF USE,
INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES CAUSED BY THE USE OF THIS
PRODUCT OR INABILITY TO USE IT, EVEN IF THE COMPANY OR ACCTON HAS BEEN
ADVISED OF SUCH LIABILITY OR OTHER SPECIAL CLAIMS.
If you purchased this product in the USA, be aware that some states do not allow limitations on how
long an implied warranty lasts, so the above limitations may not apply to you. Some states do not allow
the exclusion or limitation of incidental or consequential damages, so the above limitations or
exclusions may not apply to you. This warranty gives you specific legal rights and you may have other
rights which vary from state to state. All parts or components contained in this product are covered by
Accton’s Limited Lifetime Warranty for this product. The product may contain fully tested, recycled
parts, warranted as if new.
For warranty information:
All territories except North and South America:
Accton Technology Corporation, International Headquarters
No. 1, Creation Rd. III, Science-based Industrial Park, Hsinchu 300, Taiwan, R.O.C.
Phone: 886-3-5770-270 Fax: 886-3-5770-267 BBS: 886-3-5770-654
North and South America:
Accton Technology Corporation, USA Headquarters
1962 Zanker Road, San Jose, CA 95112, U.S.A.
Phone: 408-452-8900
Fax: 408-452-8988
BBS: 408-452-8828
Product Support Services
E-5
CheetaHub Power-3012A User’s Guide
Accton Offices
Accton Technology Corporation
International Headquarters,
No. 1 Creation Rd. III,
Science-based Industrial Park,
Hsinchu 300, Taiwan, R.O.C.
Hsinchu: Phone: 886-3-5770-270,
Fax: 886-3-5770-267, 886-3-5775-541
BBS: 886-3-5770-654
Taipei: Phone: 886-2-577-1220 to 9
Fax: 886-2-577-0816
Accton USA,
1962 Zanker Road,
San Jose, CA 95112, USA
Phone: 408-452-8900, 408-452-8080
Fax: 408-452-8988
BBS: 408-452-8828
FAST FAX: 408-452-8811
Accton UK,
The Mill Horton Road,
Stanwell Moor,
Staines. Middx. TW19 6BJ United Kingdom
Phone: 44-1753-687677, 44-1753-680109
Fax: 44-1753-689010
E-6
Product Support Services
Accton Australia,
Level 6, 10 Help Street
Chatswood, N.S.W. 2067
Australia
Phone: 61-2-9410-9860
Fax: 61-2-9410-9861
BBS: 61-2-9410-9862
Internet: http://www.accton.com.au
Accton Japan,
Yokohama Landmark Tower 17F,
2-1-1, Minatomirai 2-Chome,
Nishi-Ku, Yokohama,
220-81, Japan
Phone: 81-45-224-2332
Fax: 81-45-224-2331
CheetaHub Power-3012A User’s Guide
Ordering Information
• CheetaHub Power-3012A
(EH3012A)
• Uplink Modules
100BASE-TX (EM3051-TX)
100BASE-FX (EM3051-FX-SC)
(EM3051-FX-ST)
Fast Ethernet Stackable Hub
with 12 100BASE-TX ports
Slide in switch module with 1 100BASE-TX or
100BASE-FX port
The 100BASE-TX module runs at 10 or 100
Mbps (via auto-detection). The 100BASE-TX
and 100BASE-FX modules run at half or full
duplex (via auto-negotiation).
Product Support Services
E-7
Glossary
100BASE-TX
IEEE’s specifications for 100 Mbps Ethernet using twisted-pair cable (100W Cat. 5 STP
or UTP). The maximum length of cable for a point-to-point connection is 100 meters
(328 feet).
100BASE-FX
IEEE’s specifications for 100 Mbps Ethernet using multimode fiber optic cable. The
100BASE-FX Switch Module can be used to support fiber optic cable with SC or
ST-type connectors. The maximum length for a point-to-point connection is 2
kilometers (1.24 miles) at full duplex, or 412 meters (0.25 miles) at half duplex.
Collision
A condition in which two packets transmitted over a medium interfere with each other.
Their interference makes both signals unintelligible. The transmitting devices have to
halt transmission for a random period of time before trying to send data again.
Configuration
The way to set up a computer, server, or local area network.
Connection
A logical binding between two or more users of an interconnection service.
Daisy-Chain Port
An MDI RJ-45 port used to attach compatible devices in a daisy-chain configuration
using straight-through twisted-pair cable. To attach a device, either run a connection
from the daisy-chain port on one device to a station port on the other device, or cascade
the two devices by running crossover cable between MDI-X station ports on both
devices.
Glossary
1
CheetaHub Power-3012A User’s Guide
Ethernet
A network communication system developed and standardized by DEC, Intel, and
Xerox, using baseband transmission, CSMA/CD access and logical bus topology, and
coaxial cable. The successor IEEE 802.3 standard provides for integration into the OSI
model and extends the physical layer and media with repeaters and implementations that
operate on fiber optics, baseband, and twisted-pair.
Fast Ethernet
100 Mbps network communication system based on Ethernet and the CSMA/CD access
method.
FlexBus Ports
SCSI ports found at the backplane of the CheetaHub labeled In and Out. These ports
are used for linking the hub to other compatible hubs using Accton’s FlexBus cable.
IEEE 802.3 Standard
Standard for the physical and electrical connections in local area networks developed by
the IEEE. The IEEE 802.3u standard covers these same issues for 100 Mbps networks.
LED
Light emitting diode on the front panel of the hub used for monitoring a hub or network
condition. An LED display corresponds to a hub condition.
Local Area Network (LAN)
A group of interconnected computers and support devices.
2
Glossary
CheetaHub Power-3012A User’s Guide
MDI Port (Medium Dependent Interface)
MDI is the IEEE standard for the twisted-pair interface to 10BASE-T (or
100BASE-TX). This RJ-45 port can be used with straight-through cable to connect the
hub to a network interconnection device, such as a switch. Pin-out assignments are
shown in Appendix B.
MDI-X Port (Medium Dependent Interface - Crossed)
This RJ-45 port, which crosses the receive and transmit signals internally, can be used
with straight-through cable to connect the hub to any device that has a standard network
interface (e.g., workstation, server or router). Pin-out assignments are shown in
Appendix B.
RJ-45 Connector
Most common terminator for twisted-pair wiring.
Shielded Twisted-Pair (STP)
100W Category 5 twisted-pair wire covered with an external aluminum-foil or wovencopper shield designed to reduce excessive noise pick up or radiation. The STP cable
referred to in this manual is also sometimes called screened twisted-pair (ScTP). Its
impedance is 100Wand has the same pin assignment as UTP. This cable should not be
confused with the older 150Wcable type designed by IBM.
Star Topology
Physical connections for this hub are limited to a star configuration (i.e., similar to a hub
and spoke arrangement). This topology also requires that only one path exists between
any two nodes, and that data transmitted by any node is concurrently available to all
other nodes within the same local network (i.e., immediate collision domain).
Glossary
3
CheetaHub Power-3012A User’s Guide
Station Port
The MDI-X port can be used for connecting the hub to any device that has a standard
network interface (e.g., workstation, server or router). For Port 12, the selector switch
must be set toMDI-X. (This port can also be connected to an MDI port on another
compatible hub or a switch.)
Unshielded Twisted-Pair (UTP)
Cable composed of insulated wires twisted together to reduce electrical interference;
used in common telephone cord.
4
Glossary
Index
applications
connecting to a remote device · 3-4
connecting to the network backbone · 3-3
stack of hubs · 3-2
stand-alone configuration · 3-1
automatic partitioning, 1-3
automatic polarity detection, 1-3
fiber optics
distance limit, 2-8
power loss, 2-8I
installation
mounting hubs in a rack, 2-3
requirements, 2-1
SmartExtender module, 2-7
stacking hubs without a rack, 2-2
installing the system, 2-1
C
J
certification, C-1
CheetaHub Power-3012A, 1-1
configuring the network, 3-1
connecting the hub system, 2-4
connecting to the stack’s backplane, 2-5
connection, verifying, 2-12
crossover cable, B-1
jabber lock-up, 1-3
A
L
limited warranty, E-4
Link indicator, 2-12
N
D
network connection
MDI daisy-chain port, 2-5
MDI-X station port, 2-4
SmartExtender module, 2-6
daisy-chain port, 3-3
distance limit in fiber optics, 2-9
E
P
EMI certification, D-1
port and cable assignments, B-1
power cord specifications, D-4
power loss in fiber optics, 2-8
product features, 1-2
F
Fast Ethernet, 1-1
FCC Warning, D-1
Index
1
CheetaHub Power-3012A User’s Guide
product support services, E-1
Accton offices, E-6
Bulletin Board Service, E-2
hardware repair service, E-1
Interactive Fast Fax, E-2
ordering information, E-6
technical support, E-3
providing power to the hub, 2-10
T
troubleshooting, 2-11
configuration, A-3
hub indicators, A-1
installation, A-2
power and cooling, A-2
twisted-pair cable
category 3,4,5, 2-4, A-2
R
V
RJ-45 daisy-chain port, 3-3
verifying port status, 2-11
verifying system operation, 2-12
S
safety compliance, D-4
SmartExtender module, 2-6
10BASE-FX, 2-7
10BASE-T, 2-7
10BASE-TX, 2-7
connecting fiber optic cabling, 2-8
connecting twisted-pair cabling, 2-8
specifications
certification, C-1
interfaces, C-1
media supported, C-1
power system, C-1
standards conformance, C-1
stack of hubs, 3-2
stand-alone configuration, 3-1
standards compliance, D-1
2
Index
EH3012A
150188-101
E0897-R01

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