Milan Technology MIL-S8000G manual Troubleshooting, „ Power, „ Diagnostic LED Indicator, „ Cabling

6. Troubleshooting

This troubleshooting section is intended to help solve many common problems that might occur when installing the MIL-S8000G. The switch can be easily monitored through panel indicators to assist in identifying problems.

„Power

If the power indicator does not light up when the power cord is plugged in, you may have a problem with the power outlet or power cord. However, if the switch powers off after running for awhile, check for loose power connections, power losses or surges at the power outlet. If you still cannot resolve the problem, contact your local dealer for assistance.

„Diagnostic LED Indicator

1.If the link indicator does not light up after making a connection, check whether the network interface (e.g., a network adapter card on the attached device), network cable, or switch port is defective or not.

2.Verify that the switch and attached device are powered on.

3.Be sure the cable is plugged into both the switch and the corresponding device.

4.Verify that the proper cable type is used and its length does not exceed specified limits (100 meters).

„Transmission Mode

Verify that each port is set to the same transmission mode used by the attached device, for example Half or Full-Duplex. The RJ-45 ports use auto-negotiation to set the transmission mode. If the attached devices do not support auto-negotiation, the switch will assume the port operates at half duplex.

„Cabling

RJ-45 ports: Use unshielded twisted-pair (UTP) or shielded and

twisted pair (STP) cable for RJ-45 connections: 100Ω 2-pair UTP/STP Category 3, 4 or 5 cable for 10Mbps connections or 2-pair UTP/STP 100Ω Category 5 cable for 100Mbps connections and 4- pair UTP/STP Category 5 cable for Gigabit 1000Mbps connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet).

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