Intel 220T manuale d’uso

694466-001 Intel Expr ess 220T and 210T Stackable Hubs User Guide[...]

Copyright © 1998, Intel Corporation. All rights reserved. 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 [...]

1 220T and 210T Overview ..................................................................... 2 Feature Comparison .............................................................................. 3 Understanding 220T Hubs .................................................................... 4 220T Port LEDs ...........................................[...]

2 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[...]

3 Featur e Comparison Express 220T (EE220TX12) Expr ess 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 9 1 0 1 1[...]

4 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 So[...]

5 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 [...]

6 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). Bl[...]

7 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. Col[...]

8 Connection Guidelines General • Ports on the 220T and 210T hubs are half-duplex. T o 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 ope[...]

9 Stacking Hubs Why Stack? The Express 220T and 210T hubs use the same connectors so they can be stacked together or stacked in combination with the Express 10/100 Stackable hub. By stacking Intel hubs you can: • increase the number of available ports, yet still treat the stack as a single repeater . • use a single Management Module to manage a[...]

10 Bridging Segments Bridging 220T Hubs A bridge allows two segments to communicate with each other . T ypically , a bridge connects segments operating at different speeds, but it can also connect segments operating at the same speed. By default, the Express 220T’ s internal bridge is active so 10Mbps and 100Mbps segments are automatically bridge[...]

11 Bridging 210T Hubs All ports on the Express 210T hub operate at the same speed (10Mbps or 100Mbps) so the hub belongs to only one segment at a time. The 210T hub doesn’t contain an internal bridge. T o communicate, the segments must be bridged by a 220T hub or by an external device (like a 10/100 switch). Example 2: Bridging with a 10/100 swit[...]

12 Cabling Devices Media Requirements Incorrect cabling is often the cause of network configuration problems. Read the next two pages if you’re unsure of your requirements. 100Base-TX The 100Base-TX Fast Ethernet specification requires that you use CA T 5 UTP cabling to operate at 100Mbps. If you use lower grade cabling (CA T 3 or CA T 4), you ma[...]

13 Straight-through UTP cable Hub (MDI-X) Adapter (MDI) 10 0 4 Not used 4 Not used 5 Not used 5 Not used 7 Not used 7 Not used 8 Not used 8 Not used 1 (RX+) 1 (TX+) 2 (RX-) 2 (TX-) 3 (TX+) 3 (RX+) 6 (TX-) 6 (RX-) Crossover UTP cable Hub (MDI-X) Switch (MDI-X) 10 0 4 Not used 4 Not used 5 Not used 5 Not used 7 Not used 7 Not used 8 Not used 8 Not us[...]

14 Can I stack Intel Express 220T Stackable Hubs with Intel Express 210T Stackable Hubs or Intel Express 10/100 Stackable Hubs? Y es. These hubs use the same Intel Cascade Cable and connectors. Can I stack Intel Express 220T or 210T Stackable Hubs with Intel Express 100Base-TX Stackable Hubs? No. The hubs use a dif ferent Cascade Cable and connecto[...]

15 Can I daisy-chain a 100Mbps hub to the 220T hub with UTP cabling? No. Only hubs operating at 10Mbps can be daisy-chained to the 220T . Y ou must use an Intel Cascade Cable to connect Intel hubs operating at 100Mbps. Can I daisy-chain 210T hubs together with UTP cabling? Only if the hubs are operating at 10Mbps. Y ou must use an Intel Cascade Cab[...]

16 Federal Communications Commission (FCC) Statement This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment[...]

17 WARNUNG Das System wurde für den Betrieb in einer normalen Büroumgebung entwickelt. Der entwickelt. Der Standort sollte: · sauber und staubfrei sein (Hausstaub ausgenommen); · gut gelüftet und keinen Heizquellen ausgesetzt sein (einschließlich direkter Sonneneinstrahlung); · keinen Erschütterungen ausgesetzt sein; · keine starken, von e[...]

18 Har dwar e W arranty Limited Hardwar e W arranty Intel warrants to the original owner that the hardware product delivered in this package will be free from defects in material and workmanship for three (3) years following the latter of: (i) the date of purchase only if you register by returning the registration card as indicated thereon with pro[...]

19 Limited Hardwar e W arranty (Europe only) Intel warrants to the original owner that the hardware product delivered in this package will be free from defects in material and workmanship for three (3) years following the latter of: (i) the date of purchase only if you register by returning the registration card as indicated thereon with proof of p[...]

20 T r oubleshooting No link (left LED is off). • Remove the cable and plug it in again. W ait up to six seconds for a link. • Make sure you’re using the right type of cable (straight-through or crossover) for the device you want to connect to. If you’re using the wrong cable, the left LED above the port will not come on. • Make sure the [...]

21 Automated Support Y ou can reach Intel’ s automated support services 24 hours a day , every day at no char ge. The services contain the most up-to-date information about Intel products. Y ou can access installation instructions, troubleshooting information, and general product information. World Wide W eb & Internet FTP Access Intel’ s W[...]

694466-001 Intel Expr ess 220T and 210T Stackable Hubs User Guide[...]