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61200217L1-1 T3SU 300 User Manual 6-1
Chapter 6 Diagnostics
The
D
IAGNOSTICS
menu allows you to initiate loopback and BERT
tests from the T3SU 300. Figure 6-1 shows the main
D
IAGNOSTICS
menu. Tests can be performed for the entire DS3 or for an
individual DTE port. To choose a port from the left column of the
menu, select the port’s corresponding number and press Enter .
The individual port menus provide loopback and BERT selections.
BERT configuration options and results are given in the right
column of the main
D
IAGNOSTICS
menu. Diagnostic selections are
described in the following sections.
You can only perform a BERT test on one port at a time. If a BERT test is
already in progress and a second BERT test is selected for another port,
the first test is discontinued.
Loopback tests may be performed simultaneously on all ports.