Table of Contents
Advertisement
Twisted-Pair Ports
Problem: A twisted-pair port on the switch is connected to a network
device but the port's LINK/ACT LED is off.
Solutions: The port is unable to establish a link to a network device. Try
the following:
Verify that the port is connected to the correct twisted-pair cable.
This is to eliminate the possibility that the port is connected to the
wrong network device which may not be active.
Verify that the network device connected to the twisted-pair port is
powered on and is operating properly.
Verify that the network cable is securely connected to the ports on
the switch and remote network device.
Try connecting another network device to the twisted-pair port with
a different cable. If the twisted-pair port is able to establish a link,
then the problem is with the cable or the other network device.
Verify that the twisted-pair cable does not exceed 100 meters (328
feet).
Verify that you are using the appropriate category of twisted-pair
cable. Refer to Table 1 on page 24 and Table 3 on page 26.
Use the switch's management software to verify that the port is
enabled.
If the remote network device is a managed device, use its
management firmware to verify that its port is enabled.
Note
A 1000Base connection might require five to ten seconds to
establish a link.
Problem: Network performance between a twisted-pair port on the switch
and a network device is slow.
Solution: There might be a duplex mode mismatch between the port and
the network device. This can occur when a twisted-pair port using Auto-
Negotiation is connected to a remote device that has a fixed speed of 10
or 100 Mbps and a fixed duplex mode of full duplex. If this is the cause of
the problem, adjust the duplex mode of the port on the network device or
switch so that both ports are using the same duplex mode. For the AT-
IS230-10GP switch, you have to use the management software to
determine the duplex mode settings of the ports.
IS230-10GP Industrial Ethernet Layer 2 Switch Installation Guide
81
Advertisement
Table of Contents
