Intel Express 220T and 210T Stackable Hubs User Guide 694466-001
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Contents 220T and 210T Overview ..................................................................... 2 Feature Comparison .............................................................................. 3 Understanding 220T Hubs .................................................................... 4 220T Port LEDs ............................................................................. 4 220T Hub LEDs ............................................................................ 5 Understanding 210T Hubs .
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).
Feature Comparison Express 220T (EE220TX12) Express 220T (EE220TX24) Intel Express 220T Stackable Hub Intel Express 220T Stackable Hub 1 2 3 4 5 6 7 8 9 10 11 12 Class I Colls 10Mbps Bridged Colls 100Mbps Managed RPS Status Colls 10Mbps Power Bridged Colls 100Mbps Enable/Disable Bridging 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Power Managed Enable/Disable Bridging Status RPS 1 Left (Orange/Green) Orange = 10Mbps Green = 100Mbps Solid = Link Bl
Understanding 220T Hubs 220T Port LEDs The LEDs above each port provide information about the port’s configuration and status. Left side: Orange/ Green Right side: Yellow 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. Solid yellow Port disabled by management (not applicable without optional Management Module).
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. Intel Express 220T Stackable Hub Colls 10Mbps Bridged Colls 100Mbps Managed RPS Status Power Enable/Disable Bridging 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.
Understanding 210T Hubs 210T Port LEDs The LEDs above each port provide information about the port’s configuration and status. Left side: Green Right side: Yellow LED Status Meaning Left Solid green Port has a link. Blinking green Receive activity at port. Off No link detected. Solid yellow Port disabled by management (not applicable without optional Management Module). Blinking yellow Speed mismatch. Check that device speed and hub speed match.
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. Intel Express 210T Stackable Hub Change Hub Speed 10Base-T Collision 100Base-TX Managed Power Status 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.
Connecting to Devices 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.
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 all hubs in the stack. • use the 220T’s internal bridge so 10Mbps and 100Mbps segments can communicate.
Bridging Segments Bridging 220T Hubs A bridge allows two segments to communicate with each other. Typically, 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 bridged. The 220T’s Enable/Disable bridging button allows the hub’s internal bridge to be turned off.
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. To 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 switch In a stack of 210T and Express 10/100 hubs, the hubs at 10Mbps can communicate and the hubs at 100Mbps can communicate.
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 CAT 5 UTP cabling to operate at 100Mbps. If you use lower grade cabling (CAT 3 or CAT 4), you may get a connection, but will soon experience data loss or slow performance. You’re limited to 100 meters between any two devices.
Straight-through UTP cable Hub (MDI-X) Adapter (MDI) 100 1 (RX+) 2 (RX-) 1 (TX+) 2 (TX-) 3 (TX+) 6 (TX-) 3 (RX+) 6 (RX-) 4 Not used 5 Not used 4 Not used 5 Not used 7 Not used 8 Not used 7 Not used 8 Not used Crossover UTP cable Hub (MDI-X) Switch (MDI-X) 100 1 (RX+) 2 (RX-) 1 (RX+) 2 (RX-) 3 (TX+) 6 (TX-) 3 (TX+) 6 (TX-) 4 Not used 5 Not used 4 Not used 5 Not used 7 Not used 8 Not used 7 Not used 8 Not used 13
Frequently Asked Questions Can I stack Intel Express 220T Stackable Hubs with Intel Express 210T Stackable Hubs or Intel Express 10/100 Stackable Hubs? Yes. 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 different Cascade Cable and connectors. However, both are 100Base-TX compliant and can exist in the same network.
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. You 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. You must use an Intel Cascade Cable to connect hubs at 100Mbps. Also, daisy-chained hubs cannot be managed as a single stack.
Regulatory Information and Warnings 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.
WARNUNG Das System wurde für den Betrieb in einer normalen Büroumgebung entwickelt. Der entwickelt.
Hardware Warranty Limited Hardware Warranty 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 purchase; or (ii) the date of manufacture; or (iii) the registration date if by electronic means provided such registration occurs within thirty (30) days from purc
Limited Hardware Warranty (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 purchase; or (ii) the date of manufacture; or (iii) the registration date if by electronic means provided such registration occurs within thirty (30) days from purchase
Troubleshooting No link (left LED is off). • Remove the cable and plug it in again. Wait 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 device you’ve connected to a port is a 10Base-T or 100Base-TX device. The Express 220T and 210T Stackable Hubs don’t support 100Base-T4 devices running at 100Mbps.
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Intel Express 220T and 210T Stackable Hubs User Guide 694466-001
