Quick Installation GuideCheetaHub Classic-2041

6 7

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.

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). Similar networking
devices (e.g., another hub or switch) can be cascaded by connecting the hubs
daisy-chain port (MDI) to an RJ-45 station port on the other device. Use 100W
Category 3, 4 or 5 twisted-pair cable: unshielded or shielded (UTP/STP) cable for
all RJ-45 connections on the front panel, and shielded (STP) cable for the stack
ports on the rear panel. Also be sure that the length of any twisted-pair connection
does not exceed 100 meters (328 feet).
niP tnemngissA)61-1stroPnoitatS(niahC-ysiaD(tnemngissA)ecivedrehto,troP1+ataDevieceRtupnI+ataDtimsnarTtuptuO2-ataDevieceRtupnI-ataDtimsnarTtuptuO3+ataDtimsnarTtuptuO+ataDevieceRtupnI6-ataDtimsnarTtuptuO-ataDevieceRtupnI8,7,5,4desUtoNdesUtoN
Schematics for both straight and crossover twisted-pair cable are shown below.

hguorhT-thgiartS revossorC

)buH()retpadA()buH()buH(

+DRI1+DTO1+DRI1+DRI1

-DRI2-DTO2-DRI2-DRI2

+DTO3+DRI3+DTO3+DTO3

-DTO6-DRI6-DTO6-DTO6

EMI Certification

FCC Class A (USA)
Warning: This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instruction manual, may cause
interference to radio communications. It has been tested and found to comply with
the limits for a Class A digital device pursuant to Subpart B of Part 15 of FCC Rules,
which are designed to provide reasonable protection against such interference when
operated in a commercial environment. Operation of this equipment in a residential
area is likely to cause interference, in which case the user, at his own expense, will
be required to take whatever measures are required to correct the interference.
You may use unshielded twisted-pair (UTP) for RJ-45 connections - Cat. 3 or greater.
Class A (Canada Department of Communications)
This digital apparatus does not exceed the Class A limits for radio noise emissions
from digital apparatus as set out in the interference-causing equipment standard
entitled "Digital Apparatus", ICES-003 of the Department of Communications.
Cet appareil numérique respecte les limites de bruits radioélectriques applicables
aux appareils numériques de Classe A prescrites dans la norme sur le matériel
brouilleur: "Appareils Numérques", NMB-003 édictée par le ministère des
Communications.
Class A (Taiwan Bureau of Commodity Inspection)
Class A Compliance (Korea)
VCCI Class A Compliance (Japan)
CE Mark Declaration of Conformance for EMI and Safety (EEC)
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) 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)
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
this device. Les raccordeurs ne sont pas utilisé pour le système téléphonique!