Intel Express 210T Bedienungsanleitung

694466-001

Intel Express

220T and 210T

Stackable Hubs

User Guide

Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro OR 97124-6497

Intel Corporation assumes no responsibility for errors or omissions in this manual. Nor does Intel make any commitment to update the

information contained herein.

* Other product and corporate names may be trademarks of other companies and are used only for explanation and

to the owners’ benefit, without intent to infringe.

First Edition May 1998 694466-001

Year 2000 Capable

An Intel product, when used in accordance with its associated documentation, is "Year 2000 Capable" when, upon

installation, it accurately stores, displays, processes, provides, and/or receives date data from, into, and between

the twentieth and twenty-first centuries, including leap year calculations, provided that all other technology used

in combination with said product properly exchanges date data with it.

220T and 210T Overview .....................................................................2

Feature Comparison..............................................................................3

Understanding 220T Hubs....................................................................4

220T Port LEDs.............................................................................4

220T Hub LEDs ............................................................................5

Understanding 210T Hubs....................................................................6

210T Port LEDs.............................................................................6

210T Hub LEDs ............................................................................7

Connecting to Devices..........................................................................8

Connection Guidelines ..................................................................8

Stacking Hubs.......................................................................................9

Why Stack? ...................................................................................9

Bridging Segments ...............................................................................10

Bridging 220T Hubs......................................................................10

Bridging 210T Hubs......................................................................11

Cabling Devices....................................................................................12

Media Requirements .....................................................................12

Straight-through vs. Crossover Cables..........................................12

FrequentlyAsked Questions.................................................................14

Regulatory Information and Warnings .................................................16

Hardware Warranty...............................................................................18

Troubleshooting....................................................................................20

Intel Customer Support.........................................................................21

Contents

220T and 210T Overview

Features

This guide covers both the 12- and 24-port versions of the Intel®Express

220T Stackable Hub and the Express 210T Stackable Hub (formerly known

as the Express 10/100 Stackable Hub).

Input

100-120VAC/2.5A

200-240VAC/1.5A

47Hz-63Hz

Redundant Power Supply (RPS)

Colls 10Mbps

Colls 100Mbps

RPS

Power

Intel Express 220T

Stackable Hub

Bridged

Managed

Enable/Disable

Bridging

Status

Class

Left (Orange/Green)

Orange = 10Mbps

Green = 100Mbps

Solid = Link

Blink = Activity

Right (Yellow)

Solid = Disabled

Blink = Wrong speed

12345678 9101112

Colls 10Mbps

Colls 100Mbps

RPS

PowerBridged

Managed

Enable/Disable

Bridging

Status

Class

Left (Orange/Green)

Orange = 10Mbps

Green = 100Mbps

Solid = Link

Blink = Activity

Right (Yellow)

Solid = Disabled

Blink = Wrong speed

Intel Express 220T

Stackable Hub

24232219 212016 17 1810 11 12 151413876549123

10Base-T

100Base-TX Power

Intel Express 210T

Stackable Hub

Collision

Managed

Status

Class

Left (Green)

Solid = Link

Blink = Activity

Right (Yellow)

Solid = Disabled

Blink = Wrong speed

Change Hub Speed

12345678 9101112

10Base-T

100Base-TX Power

Intel Express 210T

Stackable Hub

Collision

Managed

Status

Class

Left (Green)

Solid = Link

Blink = Activity

Right (Yellow)

Solid = Disabled

Blink = Wrong speed

Change Hub Speed

24232219 212016 17 1810 11 12 151413876549123

Expansion

Slot

Fan AC

Power

Plug

Cascade

Connectors

Ports

RPS

Connector

(220T Hubs only)

Change Speed

Button

Port LEDs

Bridging

Button

Hub LEDs

12-port 220T Hub

24-port 220T Hub

12-port 210T Hub

24-port 210T Hub

Feature Comparison

Express 220T (EE220TX12) Express 220T (EE220TX24)

Colls 10Mbps

Colls 100Mbps

RPS

Power

Intel Express 220T

Stackable Hub

Bridged

Managed Enable/Disable

Bridging

Status

Class I

Left (Orange/Green)

Orange = 10Mbps

Green = 100Mbps

Solid = Link

Blink = Activity

Right (Yellow)

Solid = Disabled

Blink = Wrong speed

12345678 9101112

Colls 10Mbps

Colls 100Mbps

RPS

PowerBridged

Managed Enable/Disable

Bridging

Status

Class I

Left (Orange/Green)

Orange = 10Mbps

Green = 100Mbps

Solid = Link

Blink = Activity

Right (Yellow)

Solid = Disabled

Blink = Wrong speed

Intel Express 220T

Stackable Hub

24232219 212016 17 1810 11 12 151413876549123

• 12ports, autosensing10Mbps or • 24ports, autosensing10Mbps or

100Mbps

per

port

100Mbps

per

port

• Bridges10Mbps and100Mbps segments • Bridges10Mbps and100Mbps segments

• SupportsRedundant PowerSupply (RPS) • SupportsRedundant PowerSupply (RPS)

• Two expansionslots for optionalmodules

Express 210T (EE210TX12) Express 210T (EE210TX24)

10Base-T

100Base-TX Power

Intel Express 210T

Stackable Hub

Collision

Managed

Status

Class I

Left (Green)

Solid = Link

Blink = Activity

Right (Yellow)

Solid = Disabled

Blink = Wrong speed

Change Hub Speed

12345678 9101112

10Base-T

100Base-TX Power

Intel Express 210T

Stackable Hub

Collision

Managed

Status

Class I

Left (Green)

Solid = Link

Blink = Activity

Right (Yellow)

Solid = Disabled

Blink = Wrong speed

Change Hub Speed

24232219 212016 17 1810 11 12 151413876549123

•

All

12 ports operate at same •

All

24 ports operate at same

speed(10 or100Mbps) speed (10or 100Mbps)

• Two expansionslots for optionalmodules

Common Features and Optional Modules

• Stack up to eight hubs (mixed 12- or 24-port)

• Compatiblewith Express 10/100Stackable Hub

• Mix 220T, 210T, and Express 10/100 hubs in a stack

• Full-duplexsupportthrough theoptionalEthernet Module.

Change

duplex

Ethernet Module

MDI MDI-X

Auto-negotiate

Full-duplex

Half-duplex

Change

duplex

Auto-negotiate

100 Mbps

10 Mbps

Coll

• 100Base-FXsupport andfull-duplex supportthrough the optionalFiber Module.

Xmt Link

Rcv Coll

TX RX

Fiber Module

Change

duplex

Half-duplex

Full-duplex

• SNMP,RMON, and web-basedmanagement through theoptional Management Module.

Esc

Management

with RMON

Module

Reset

Understanding 220T Hubs

220T Port LEDs

The LEDs above each port provide information about the port’s

configuration and status.

LED Status Meaning

Left Solid orange Device linked at 10Mbps.

Solid green Device linked at 100Mbps.

Blinking orange Receive activity at 10Mbps.

Blinking green Receive activity at 100Mbps.

Off No link detected.

Right Solid yellow Port disabled by management (not applicable

without optional Management Module).

Blinking yellow Speed mismatch (not applicable without

optional Management Module).

Erratic blinking yellow Port auto-disabled (partitioned). See below.

Blinking yellow and Out-of-specification cabling or port hardware

Status LED blinking problem. Try a different cable.

Partitioned ports

A port is automatically disabled (partitioned) by the hub when an invalid

condition occurs, such as too many consecutive collisions.

Once the hub sees a valid packet of data from the device or is able to

transmit data to the port, the hub automatically re-enables (unpartitions) the

port. Clients are usually not affected by a partitioned port because the port is

often unpartitioned very quickly.

Usually, a partitioned port indicates an overloaded network or a

malfunctioning device (like an adapter card) on the network. To alleviate an

overloaded network, segment so that fewer devices share the fixed amount

of bandwidth.

Left side:

Orange/

Green

Right side:

Yellow

220T Hub LEDs

The hub LEDs on the 220T indicate these conditions: collisions, status of

internal bridging, if the hub is managed, and the condition of the hub’s

power supply.

Colls 10Mbps

Colls 100Mbps

RPS

Power

Intel Express 220T

Stackable Hub

Bridged

Managed

Enable/Disable

Bridging

Status

LED Status Meaning

Colls 10Mbps Blinking Collisions detected on 10Mbps segment.

Colls 100Mbps Blinking Collisions detected on 100Mbps segment.

RPS On (green) Optional RPS is present and on standby.

Off No RPS unit present.

On (red) RPS is active; hub power supply failed.

Bridged On 10Mbps and 100Mbps segments can

communicate.

Off No communication between segments.

Managed On Hub is managed by the optional

Management Module.

Off Hub is not managed.

Status On Hub is operating normally.

Blinking Hub has an internal hardware orsoftware

problem. See descriptions for the right

port LED on page 4.

Managed and Status Blinking Hub failed to load its internal software.

Power On Hub is receiving power.

Off Hub is not receiving power.

Understanding 210T Hubs

210T Port LEDs

The LEDs above each port provide information about the port’s

configuration and status.

LED Status Meaning

Left Solid green Port has a link.

Blinking green Receive activity at port.

Off No link detected.

Right Solid yellow Port disabled by management (not applicable

without optional Management Module).

Blinking yellow Speed mismatch. Check that device speed

and hub speed match.

Erratic blinking yellow Port auto-disabled (partitioned). See below.

Blinking yellow and Out-of-specification cabling or port hardware

Status LED blinking problem. Try a different cable.

Partitioned ports

Aport is automatically disabled (partitioned off) by the hub when an invalid

condition occurs, such as too many consecutive collisions.

Once the hub sees a valid packet of data from the device, or is able to

transmit data to the port, the hub automatically re-enables (unpartitions) the

port. Clients are usually not affected by a partitioned port because the port is

often unpartitioned very quickly.

Usually, a partitioned port indicates an overloaded network or a

malfunctioning device (like an adapter card) on the network. To alleviate an

overloaded network, segment so that fewer devices share the fixed amount

of bandwidth.

Left side:

Green Right side:

Yellow

210T Hub LEDs

The 210T hub LEDs indicate these conditions: hub speed, collisions in the

hub or stack of hubs, and whether the hub is managed.

10Base-T

100Base-TX Power

Intel Express 210T

Stackable Hub

Collision

Managed

Status

Change Hub Speed

LED Status Meaning

10Base-T On Hub is operating at 10Mbps.

100Base-TX On Hub is operating at 100Mbps.

Collision Blinking Collisions detected on hub (or stack).

LED brightens as more collisions are

detected. Continuous blinking indicates

an overloaded network.

Off No collisions detected.

Managed On Hub is managed by the optional

Management Module.

Off Hub is not managed.

Status On Hub is operating normally.

Blinking Hub has an internal hardware orsoftware

problem. See descriptions for the right

port LED on page 6.

Managed and Status Blinking Hub failed to load its internal software

Power On Hub is receiving power.

Off Hub is not receiving power.

Connection Guidelines

General

• Ports on the 220T and 210T hubs are half-duplex. To connect to a device

at full-duplex, you must use the optional Ethernet or Fiber Modules.

• 220T ports are autonegotiating and can operate at 10Mbps or 100Mbps.

The hub matches the highest possible speed of an attached device.

• All ports on the 210T hub operate at the same speed, either 10Mbps or

100Mbps. The ports cannot autonegotiate speed.

• If the 10Mbps and 100Mbps segments are bridged externally (through a

switch or Ethernet Module), be sure to turn off the hub’s internal bridge

before connecting any devices.

Cabling

• Use Category 5 unshielded twisted-pair (CAT 5 UTP) cable when

connecting 100Mbps devices to the hub.

• Use Category 3, 4, or 5 unshielded twisted-pair (CAT 3, 4, 5 UTP) cable

when connecting 10Mbps devices to the hub.

• Limit the cable length between devices to 100 meters.

• Use a crossover cable to connect the hub to a switch.

• Use a straight-through cable to connect the hub to a server or

workstation. For more information on cabling, see pages 12-13.

Daisy-chaining Hubs

• Don’t daisy-chain two hubs operating at 100Mbps with UTP cabling

(this violates the IEEE 802.3u Fast Ethernet specification for Class I

hubs). You must use Intel Cascade Cables (EE200CC).

• Hubs can be daisy-chained only if they are operating at 10Mbps.

• When connecting 10Mbps hubs, please note the following diagram.

1010 10 10

500m (max)

100m (max)

Connecting to Devices

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