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I’ve connected the cable but the port LED is off. Why?
• Remove the cable and plug it in again. Wait up to six seconds for a link.
• Make sure you’re using the correct type of cable (straight-through or
crossover) for the device you want to connect to. If you’re using the
wrong cable, the link LED will not come on.
• Make sure the device you’ve connected to a port is a 10Base-T or
100Base-TX device. The Express 535T Switch doesn’t support
100Base-T4 devices running at 100Mbps. However, they do support T4
devices running at 10Mbps.
• Check the speed and duplex settings on the PC’s network adapter.
• The cable is defective.
I keep getting an intermittent loss of link (or data is not being
transmitted). Why?
• You may be using the wrong grade of cable. The wrong cable can cause
erratic performance and you may eventually lose the connection
between the port and the attached device.
• A cable segment somewhere in your collision domain may be too long.
Make sure no segment of your UTP cabling is longer than 100 meters.
• Check the Ethernet cable pairs. The TX pairs (pins 1 and 2) and the RX
pairs (pins 3 and 6) should be twisted pairs. See diagram on page 24.
How can I set the speed or duplex on individual ports?
Normally the switch handles all connections automatically. If you need
to force speed or duplex, ( to accommodate older devices that don’t
support autonegotiation) the 535T switch will need to be part of a stack
so you can use the Local Management on the Intel
®
Express 530T
Switch to configure the port.
FAQs/Troubleshooting
535 Guide.p65 8/15/00, 12:38 AM25