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TROUBLESHOOTING
CHAPTER 5
TROUBLESHOOTING
This chapter contains instructions for using LANVIEW LEDs to troubleshoot physical layer network problems. It also describes how to reset the SEHI.
5.1INSTALLATION CHECK-OUT
After you connect the SEHI to the network, verify that packets pass between all Ethernet devices connected to the SEHI and any other devices connected to the network. If you encounter difficulty with any of the attached devices, check the link as follows:
1.Check that the LNK LED, if applicable, for the port is on. If the LED is not on:
a.Check that the
b.Verify that the connector on the twisted pair segment has the proper pinouts. Refer to Chapter 2 for the pin assignments for twisted pair connectors.
For
c.Check the cable for continuity. A variety of tools are available for this test, depending on the media you are using.
d.Check that the twisted pair segments meet cable specifications for dB loss described in Chapter 2.
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