A
P
P
E
N
D
I
X
Technical Information
119
A
p
pe
nd
ix
I’ve connected the cable but the left LED (link) 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–
MDI or crossover–MDI-X) 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 530T switch doesn’t support 100Base-T4
devices running at 100Mbps. However, it does support T4 devices
running at 10Mbps.
• Check the speed and duplex settings on the PC’s network adapter.
• The cable is defective.
The port’s left LED (link) is on but I’m not seeing any
activity when I try to ping a device on that port. Why?
• The port could be disabled through management. Go into the
Local Management or Web Device view to enable the port and try
pinging the device again.
• The port could be partitioned (auto-disabled). This condition is
usually caused by a malfunctioning network adapter or an over-
loaded network segment. The switch will wait until it stops receiv-
ing collisions then clear the port automatically.
After I connect to Local Management I see a blank
screen. Why?
• Make sure you are using a null modem cable (included).
• Check the settings in your terminal program. They should be set to
9600 baud, 8 data bits, No parity, 1 stop bit, and No flow control.
• Try pressing
c
+
R
to force the screen to refresh.
Appendix.fm Page 119 Tuesday, August 8, 2000 2:33 PM
