Enterasys mrxi-22 User Guide

This chapter contains procedures for testing the MRXI after you connect 
it to the network. It also describes LANVIEW and includes instructions 
for using the LCD display to troubleshoot physical layer network 
problems.

After you connect the MRXI to the network, verify that packets pass 
between all Ethernet devices connected to the MRXI 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 lit. If the LED 

is not lit:

a.

Check that the 10BASE-T device at the other end of the twisted 
pair segment is powered up.

b. Verify that the connector on the twisted pair segment has the 

proper pin-outs. Refer to Chapter 2 for the pin assignments for 
twisted pair connectors.

For EPIM-F1/EPIM-F2 check that the TX and RX fibers are 
properly connected.

For EPIM-A check that the PWR is lit.

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.

2. If the remote station is ready and the LNK LED is lit, but no data 

passes through the port, one of two conditions may exist: