3Com SuperStack 3 3C16468 Manual del usuario - Página 3

Navegue en línea o descargue pdf Manual del usuario para Interruptor 3Com SuperStack 3 3C16468. 3Com SuperStack 3 3C16468 9 páginas. 10/100/1000 switch 6-port 10base-t/100base-tx/1000base-t

Imprimir página

4 Power LED

The Power LED indicate the status of the unit's internal

power as follows:

Status

Meaning

Off

Unit power rails faulty

Green

Normal operation; all power rails functional

Yellow

Unit shutdown due to excessive temperature. Refer to "Prob-

lem Solving on

page

NSTALLING THE

Positioning the Switch

When deciding where to position the Baseline

10/100/1000 Switch 6-Port ensure:

T It is accessible and cables can be connected easily.

T Cabling is away from sources of electrical noise.

These include lift shafts, microwave ovens, and air

conditioning units. Electromagnetic fields can inter-

fere with the signals on copper cabling and intro-

duce errors, therefore slowing down your network.

T Water or moisture cannot enter the case of the unit.

T Air flow around the unit and through the vents in the

side of the case is not restricted (3Com recommend

that you provide a minimum of 25 mm (1 in.) clear-

ance).

T The air is as free from dust as possible.

T Temperature operating limits are not likely to be

exceeded. It is recommended that the unit is installed

in a clean, air conditioned environment.

It is always good practice to wear an anti-static wrist

strap when installing network equipment, connected to

a ground point. If one is not available, try to keep in

contact with a grounded rack and avoid touching the

unit's ports and connectors, if possible. Static discharge

can cause reliability problems in your equipment.

Rack Mounting or Free Standing

This unit can be mounted in a 19-inch equipment rack

using the Mounting Kit. Refer to

Instructions"

page

not place objects on top of the unit or stack.

The unit is supplied with four self-adhesive rubber pads.

If the unit is to be part of a free standing stack, apply

the pads to each marked corner area on the underside

of the unit. Place the unit on top of the lower unit,

ensuring that the pads locate with the recesses of the

lower unit.

You do not need to apply the pads if you intend to rack

mount the unit.

CAUTION: If installing the Baseline 10/100/1000 Switch

6-Port in a free standing stack of different size

SuperStack II or SuperStack 3 units, the smaller units

must be installed above the larger ones. Do not build a

free standing stack of more than six units.

WITCH

"Mounting Kit

4. It can also be free standing. Do

Rear Panel Connections

5 Power Supply

The Baseline 10/100/1000 Switch 6-Port automatically

adjusts to the supply voltage. Only use the power cord

that is supplied with the unit.

6 Socket for Redundant Power System (RPS)

Connect a 3Com SuperStack 3 Advanced RPS (3C16070,

3C16071, 3C16071A, or 3C16071B) only to this socket.

An appropriate power module and cable is required. The

connector on the Baseline 10/100/1000 Switch 6-Port

requires a Type 2A module. For details, follow the

installation instructions in the guides that accompany the

Advanced RPS and the power module.

Connecting to a Network Device

Follow these guidelines to connect a device to the

Baseline 10/100/1000 Switch 6-Port:

T Use Category 5 unshielded or shielded (screened) 100

Ohm TP cable (or Category 3 cable for a 10 Mbps

connection).

T The maximum length of cable for each connection is

100m (328ft).

T Connect one end of the cable to an RJ-45 port on

the Baseline 10/100/1000 Switch 6-Port, and the

other end to the appropriate RJ-45 port on the con-

necting device.

Power Supply

Power problems can be the cause of serious failures and

downtime in your network. Ensure that the power input

to your system is clean and free from sags and surges to

avoid unforeseen network outages. 3Com recommends

that you install power conditioning, especially in areas

prone to black outs, power dips and electrical storms.

The unit is intended to be grounded. Ensure it is

connected to earth ground during normal use. Installing

proper grounding helps to avoid damage from lightning

and power surges.

Powering Up

Use the following sequence to power up the Baseline

10/100/1000 Switch 6-Port:

1 Check the network connections and cables.

2 Connect the power supply cable to the appropriate

power socket on the rear panel of the unit; see refer-

ence 5 or 6 in "Features of the Baseline 10/100/1000

Switch".

3 Connect the plug to the power supply outlet socket and

switch on the power supply at the socket. If you are

using the Advanced Redundant Power System, ensure it

is powered on.

When the switch is powered on, the Power LED lights

green. If it does not, see reference 4 in "Features of the

Baseline 10/100/1000 Switch".