K-Patents PR-23 - Troubleshooting the Connection

12 Ethernet connecon specicaon
179
very simple: go to the command interface (for example the Command Prompt), type
the name of the command and the IP address you want to check and press Enter. If
the Ethernet connection is good, the DTR is powered on and the address given to ping
is correct, the DTR will answer to ping and return any data packets sent to it, see Fig-
ure 12.8.
Figure 12.8 Ping OK.
Figure 12.9 Ping error message.
12.3.1 Troubleshoong the connecon
If you get an error message from a ping command (for example Request med out like
in Figure 12.9), check your connections.
First open the DTR cover and front panel and check the diagnostic LEDs of the Eth-
ernet connector (see Section 12.1.2). Note: Keep both the DTR and your computer
powered while you check the diagnostic LEDs.
If you cannot see any LED lights, something is physically wrong with your connection.
Check the following
− both the DTR and the device in the other end of the cable are powered on
− the Ethernet cable is properly inserted in both ends
− the Ethernet cable is of the correct type (cross-over cable for direct DTR-to-
computer connection)