Page 8-1
Chapter 8:
Troubleshooting
This chapter contains procedures for identifying and correcting faults in a PTP 670 link. These
procedures can be performed either on a newly installed link, or on an operational link if
communication is lost, or after a lightning strike.
The following topics are described in this chapter:
•
describes how to perform cable diagnostics test to detect
cabling related faults.
•
describes how to test the link end hardware, either
when it fails on startup, or after a lightning strike.
•
describes how to test the link when there is no radio
communication, or when it is unreliable, or when the data throughput rate is too low.
•
describes how to test the PTP-SYNC unit and its
connections when the PTP-SYNC LEDs do not illuminate correctly, or when a
synchronization fault is suspected.
•
describes how to check the NIDU LEDs and how to
perform a TDM loopback test.