NetComm NP2160 manual Trouble Shooting, Network Adapter Cards, Configuration

Models: NP2160

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TROUBLE SHOOTING

Symptom

Cause

Solution

Power LED is off.

Power not received at Switch

Check the power cord connections for

 

 

the switch and the connected device.

 

 

Check for a defective adapter card,

 

 

cable, or port by testing them in an

 

 

alternate environment where all products

 

 

are functioning.

 

 

Make sure all cables used are correct

 

 

and comply with Ethernet specifications.

Link LED is off or

Port connection is not

Check the crimp on the RJ-45 connectors

intermittent.

functioning.

and make sure that the plug is properly

 

 

inserted and locked into the port at both

 

 

the switch and the connecting device.

 

 

Make sure all cables used are correct

 

 

and comply with Ethernet specifications.

A segment or device

One or more devices are

is not recognized

not properly connected or

as part of the

cabling does not meet

network.

Ethernet guidelines.

Network Adapter Cards

Verify that the cabling is correct (refer to Cabling Guidelines”). Be sure all

cable connectors are securely positioned in the required ports. Straight- through cables should be

used for all standard twisted pair connections.

Make sure all devices are connected to the network. Equipment may have been accidentally disconnected.

Make sure the network adapter cards installed in the PCs are in working condition and the software driver has been installed.

Configuration

If problems occur after altering the network configuration, restore the original connections and determine the problem by implementing the new changes, one procedure at a time. Make sure that cable distances, repeater limits, and other physical aspects of the installation do not exceed the Ethernet limitations.

www.netcomm.com.au

Rev.1 - YML623

Page 12

16-port 10/100Mbps Fast Ethernet ProSwitch

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NetComm NP2160 manual Trouble Shooting, Network Adapter Cards, Configuration