User`s guide

4-1
CHAPTER 4
TESTING AND TROUBLESHOOTING
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.
4.1 INSTALLATION CHECK-OUT
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: