Tektronix CTS 850, User Manual

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Basic Test Procedures
3–2
CTS850 SDH/PDH Test Set User Manual
The first step in each application setup initializes the CTS850 to a
known state.
Network Continuity Checking
With the AUTOSCAN feature of the CTS850, it is easy to make a
quick continuity check. The continuity check verifies that a SDH
network element (NE), or portion of the network, is correctly set up
and provisioned and that the signal passes through intact. In this
example, the CTS850 transmits an STM-1E signal into an NE. Then
the CTS850 receives the output from the NE and verifies that the
AU-4, including its payload patterns, is intact.
1. Connect the CTS850 to the NE as shown in Figure 3–1.
One or More SDH NEs
All Signals are
STM-1E
CTS 850 SDH/PDH Test Set
Figure 3–1: Setup to Check Network Continuity