Chapter 6
Troubleshooting
Maintaining your TEM Module
T-BERD/MTS 5800 Timing Expansion Module User Manual
Page 64
22112315, Rev. 004
July 2017
Application does not appear on the Test menu
Verify that all required test options are installed on your 5800v2 test instrument. For
example, if you are using the TEM Module to provide high accuracy timing during PTP
or One Way Delay testing, verify that the associated test option has been installed.
Test results are inconsistent
Verify the following:
•
Verify that your instrument is properly connected to the circuit for the test you are
running. This is the primary reason for inconsistent test results.
•
If you are performing 1PPS analysis, 2 MHz clock wander analysis, or 10 MHz
clock wander analysis, verify that the input signal under test is connected to the
proper connector on the SMA Timing Cable Adapter (Part Number 22035050),
and that the adapter is securely connected to the EXT CLK connector on the
5800v2 connector panel. The input under test must be connected to the blue
CLK
2 (IN/OUT)
connector on the adapter.
•
If an object or person coming in contact with the instrument causes a temporary
burst of errors to be recorded, the errors might have been caused by an ESD
event. The recorded errors can be cleared by pressing Test Restart. Please note
that the test set is fully compliant with IEC 61326-1 ESD requirements for indus-
trial equipment and has passed testing according to IEC 61000-4-2 using test
limits of 4 kV/8 kV contact/air and performance criterion B.
Result values are unavailable
Results are not available if gating criteria have not been met. For example, if the TEM
Module has not been placed into holdover mode, the Max Holdover Duration result is
unavailable.
Can I use the TEM Module to support dual port testing?
If you need to perform dual port tests, your 5800v2 must be configured with the connec-
tors required to support each circuit that you are testing. The TEM Module can be used
as a high accuracy timing reference when running dual port tests.
Maintaining your TEM Module
The following section addresses questions that may be asked about maintaining your
TEM Module.
