
8712ET/ES and 8714ET/ES Troubleshooting and Block Diagrams
RF Network Analyzers Category 4 Failures: Peripheral Device Problems
Service Guide 4-43
Figure 4-9 Construction of a Cross-Over Cable
3. Insulate all exposed wires so they cannot short together. Label this as a crossover cable
so it cannot be confused with normal cable.
Set the IP addresses on two analyzers. The addresses can be set to anything, but they must
be different. Make sure the subnet mask and gateway addresses are set to
0.0.0.0 and
that the LAN is active ( ) on both analyzers. If necessary, refer to“How
to Ping” on page 4-40. Connect the two analyzers together using either a crossover cable or
a crossover hub.
Now follow the steps in “How to Ping” in order to have the first analyzer ping the second
analyzer. When done, repeat the procedure having the second analyzer ping the first. If
both procedures function properly, the LAN circuitry on both analyzers is verified. If
neither function, then the following could be wrong:
• One or both IP addresses could be wrong.
• One or both LAN states could be set to off.
• The crossover cable could be miswired.
• One or both analyzers could be defective.
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