Test link end hardware
Chapter 8 Troubleshooting
phn-0896_012v000
8-4
Jul 2010
Figure 8-2 Link end hardware test flowchart #2
Yes
Yes
Yes
Yes
Yes
No
No
No
Ethernet Rx Crc And
Align counter < 10?
Perform “Test Ethernet
packet errors reported by
ODU”
Is PIDU Plus connected
to Managed Switch or
Router?
Perform “Test Ethernet
packet errors reported by
managed switch or router”
Packet error rate <
1 in 1 million?
Ethernet Rx Packets
counter increments too
slowly?
Perform “Test ping packet
loss”
Number of lost packets
< 2?
No fault found
Yes
No
No
Perform “Test resistance
at the PIDU end of the
drop cable”
Perform “Test resistance
at the PIDU end of the
drop cable”
Yes
4Gon www.4Gon.co.uk info@4gon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299