Intel PCLA2152B manual Unit LEDs, 100BASE-TX

Page 13

NOTE

If you change the speed, the hub keeps the setting until you change it again, even if you turn off the hub’s power.

Changes the hub speed. The default speed is 100 Mbps.

Unit LEDs

Unit LEDs indicate the status of a hub’s power supply, hub speed, collision occurrences in a hub or stack of hubs, and whether a hub is managed.

Change hub speed

10BASE-T	Collision	Power
100BASE-TX	Managed

Status

LED	Status	Meaning
10BASE-T	On	Hub is operating at 10 Mbps.

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

Collision	Blinking	Collisions detected on hub (or stack). LED brightens as
		more collisions are detected. Collisions are normal in an
		Ethernet environment. 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 by the Management Module.

Status	On	Hub is operating normally.
	Blinking	Hub has an internal hardware or software problem. See
		the port Amber LED description on the previous page.

Managed and	Blinking	Hub failed to load its internal software properly. Try
Status		recycling the power.

Power	On	Hub is receiving power.
	Off	Hub is not receiving power.

11

Image 13

Contents Intel Express 10/100 Stackable Hub First edition April 662204-001 This guide covers the following productsCheck the LEDs for links. You’re done All ports operate at the same speedNext steps Optional Connecting hubs running at 10 Mbps Connecting hubs running at 100 MbpsContents Connecting 10BASE-T devices Connecting 100BASE-TX devicesConnection Guidelines Mixed 10 Mbps and 100 Mbps environment Example ConfigurationsBridging with the Express 10/100 Fast Ethernet Switch Bridging with the Express 10/100 Downlink Mbps-only environmentExtending the 100 Mbps network topology Extending the 10 Mbps network topology Attaching hubs to a switchDaisy-chaining hubs 10 Mbps only Port LEDs Understanding LEDsPartitioned ports Status Meaning100BASE-TX Unit LEDs100BASE-TX requirements Cabling Requirements10BASE-T requirements 100BASE-FX requirementsDetermining which cable to use Straight-through vs. crossover cablesFor this connection Use this cable No link green LED is off TroubleshootingNo link, amber LED above port is blinking slowly Link, but amber LED above port is blinking erraticallyCan I set the speed on individual ports? Frequently Asked QuestionsCan I daisy-chain hubs together with TPE cabling? Can I connect a 100BASE-T4 device to the hub?Returning a Defective Product RMA Limited Hardware WarrantyManufacturer Declaration Federal Communications Commission FCC StatementWarnung Intel BBS World Wide Web & Internet FTP