Cambium Networks PTP 250, User Manual

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Testing link end hardware Chapter 8: Troubleshooting
8-8 phn-2510_002v000 (Mar 2012)
5 Send 1000 ping packets of length 1500 bytes. The process will take 1000 seconds,
which is approximately 17 minutes.
If the computer is running a Windows operating system, this is achieved by typing:
ping –n 1000 –l 1500 <ipaddress>
where <ipaddress> is the IP address of the ODU under test.
If the computer is running a MAC operating system, this is achieved by typing:
ping –c 1000 –s 1492 <ipaddress>
where <ipaddress> is the IP address of the ODU under test.
6 Record how many Ping packets have been lost. This is reported by Command
Prompt on completion of the test.
The test has passed if the number of lost packets is less than 2.
Testing resistance in the ODU cable
Perform this task to test the resistances between the RJ45 pins at the PoE power supply
end of the ODU drop cable.
Use the PTP drop cable tester ( Figure 58 ) to make testing easier. This can be ordered from
the support website (see Contacting Cambium Networks on page 2 ) by selecting Order
Cable Tester and completing the order form.
The resistance values printed on the PTP drop cable tester do not apply to the PTP 250.
Instead, refer to the resistance values given in
Table 52 for guidance.
Figure 58 Drop cable tester (front and back views)