3Com OfficeConnect 3C1670500C 사용자 설명서 - 페이지 9

{카테고리_이름} 3Com OfficeConnect 3C1670500C에 대한 사용자 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. 3Com OfficeConnect 3C1670500C 19 페이지. 3com officeconnect 3c1670500c: specifications
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5 PROBLEM SOLVING

The Switch has been designed to aid you when detecting and

solving possible problems with your network. These problems

are rarely serious; the cause is usually a disconnected or dam-

aged cable, or incorrect configuration. If this section does not

solve your problem, contact your supplier for information on

what to do next.

Perform these actions first:

• Ensure all network equipment is powered on.

• Power each piece of network equipment off, wait about

five seconds and then power each one on.

CAUTION: Do not power the Switch off and then

immediately on. Wait about five seconds between

power cycles.

Check the following symptoms and solutions:

Power Status LED (Illuminated Logo) not lit.

The power adapter or power adapter connection is likely to

be faulty. Check your power adapter connection. If there is

still no power, contact 3Com Technical Support and ask for a

replacement power adapter. Please quote the power adapter

part number, shown on the OfficeConnect power adapter

you are currently using or refer to the table on next page.

Alternatively, quote the part number for your region:

3C number

3C12VUS

3C12VUK

3C12VME

3C12VAA

3C12VSA

3C12VKR

3C12VRA

Only use the power adapter supplied with the Switch

or a replacement OfficeConnect power adapter. Do

not use any other power adapter.

Port Status LED not lit for a port that has a TP cable

connected. After connection, it may take several seconds for

the Port Status LEDs to illuminate. The Port Status LED should

turn Green or Yellow for each port that is connected,

depending on connection speed. Please refer to 'About Your

Switch' for a full description of the LEDs.

If the Port Status LED is not lit after several seconds, ensure

that the connected device is powered on, that the TP cable is

not damaged and that it is correctly inserted at both ends.

You may find that a TP cable works when connected to the

Switch, but that it does not if disconnected from the Switch

and connected to another device. This may be because the

other device does not have the automatic MDI/MDIX feature.

The Port Status LED is lit but the network performance of

the switch is poor. The switch supports full-duplex autonego-

tiation. If the connected device does not support autonegotia-

tion, ensure it is configured for half duplex operation only.

Region

United States

United Kingdom

Mainland Europe

Australasia

South Africa

South Korea

Argentina