3Com SuperStack 3 Baseline 3C16468 Gebruikershandleiding - Pagina 4

Blader online of download pdf Gebruikershandleiding voor {categorie_naam} 3Com SuperStack 3 Baseline 3C16468. 3Com SuperStack 3 Baseline 3C16468 9 pagina's. 10/100/1000 switch 6-port 10base-t/100base-tx/1000base-t

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OUNTING

Introduction

The Baseline 10/100/1000 Switch 6-Port is supplied with

two mounting brackets and four screws. These are used

for rack mounting the unit. When mounting the unit,

you should take note of the guidelines given in

"Positioning the Switch"

Rack Mounting the Units

The Baseline 10/100/1000 Switch 6-Port is 1U high and

will fit a standard 19-inch rack.

CAUTION: Disconnect all cables from the unit before

continuing. Remove the self-adhesive pads from the

underside of unit, if already fitted.

1 Place the unit the right way up on a hard, flat surface

with the front facing towards you.

2 Locate a mounting bracket over the mounting holes on

one side of the unit (refer to the figure following step

6).

ROBLEM

At frequent intervals you should visually check the

Baseline 10/100/1000 Switch 6-Port. Regular checks can

give you an early warning of a possible failure; any

problems can then be attended to when there will be

least effect on users.

Check that all external cabling connections are secure

and that no cables are pulled taut.

Refer to the information about LEDs given earlier in this

guide to see if the problem can be identified and

rectified. Here are some common problems that can

occur:

Power LED is yellow. The temperature of the unit has

exceeded reliable operating limits. Do the following:

1 Ensure all fans are operating correctly.

2 Check the temperature of the room in which the unit is

located. The room temperature must not exceed 50° C

(122° F).

3 Disconnect the mains supply and re-connect.

Activity Status LED not lit for a port that has a

connection. There is a problem with this connection.

Check that:

AFETY

NFORMATION

Please read the following safety information

carefully before installing the Baseline 10/100/1000

Switch 6-Port.

WARNING: Installation and removal of the unit must be carried out

by qualified personnel only.

NSTRUCTIONS

page

OLVING

3 Insert the two screws supplied in the mounting kit and

fully tighten with a suitable screwdriver.

4 Repeat the two previous steps for the other side of the

unit.

5 Insert the unit into the 19-inch rack and secure with

suitable screws (not provided).

6 Reconnect all cables.

T The device being connected to is powered on and

operating correctly.

T The cable is connected at both ends.

T You are using a TP cable that is not damaged.

T If the connection is to a workstation, that the work-

station's network interface is installed and configured

correctly.

All Activity LEDs appear to be lit continually. There

may be broadcast storms on the network. Remove port

connections one at a time, waiting a few seconds

between each port. If the LEDs go off after removing a

port connection, the device that was connected to that

port is introducing an excessive amount of broadcast

frames to the network (some pieces of network

equipment operate by sending out broadcast frames

regularly). Refer to the documentation that accompanies

the device for information on disabling the broadcast

operation.

If the problem persists and the unit still does not operate

successfully, contact your supplier with the following

information before returning the unit:

T Product number and serial number (printed on a label

supplied with the unit)

T A brief description of the fault

If installing the Switch unit in a stack with SuperStack II or SuperStack 3

Hub units, the Baseline 10/100/1000 Switch 6-Port unit must be installed

below the narrower Hub units.

The unit must be connected to an earthed (grounded) outlet to comply with

international safety standards.

Do not connect the unit to an A.C. outlet (power supply) without an earth

(ground) connection.