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Working with Test Setups This section describes how to do the following tasks: H Save and recall instrument setups H Create and run pass/fail tests Instrument setups are files, stored in memory or on disk, that completely describe how the CTS850 is set up. You can use this feature to ensure that every time a test is run, using an instrument setup, that the CTS850 is configured the same way, thus ensuring consistent results. The disk file is an ASCII format file that consists of SCPI commands. The disk file can be edited with any ASCII file editor. CTS850 SDH/PDH Test Set Pass/fail tests are tests that display a message indicating whether the completed test encountered any of the specified failure conditions. Up to four failure conditions can be specified in a pass/fail test. Pass/fail tests can be configured to save test results to disk or to print out the test results when the test completes. Jitter tests are a set of standard compliance tests that measure the jitter in a signal or the response of a network to applied jitter. These tests are defined by ITU Standards G.823, G.825, and G.783. For some tests, the CTS850 generates jitter to stimulate a network element and simultaneously measures its response. Results are displayed in numerical and graphical form. You can set parameters to customize most jitter tests. Saving and Recalling Instrument Setups Instrument setups are files stored in memory or on disk that define how the CTS850 is configured. If you regularly set up the CTS850 in the same way, you can save the instrument settings in an instrument setup. Then you can recall the instrument setup whenever you want the CTS850 configured a certain way. This capability saves you time and minimizes the chances of error when setting up the CTS850 for standard tasks. CTS850 SDH/PDH Test Set User Manual 3 41 Working with Test Setups NOTE. Instrument setups saved to memory are retained when the instrument is turned off. Instrument setups are retained in memory even if power is removed from the CTS850. Saving Instrument Setups To save an instrument setup: 1. Set up the CTS850 as desired. Set all instrument parameters as required. 2. To save an instrument setup to disk, it must have a name. Enter a file name as follows: Press Menu Select Menu Highlight Button Page Parameter Select Choice TEST SETUPS SAVE Name SETUP_XX INSTRUMENT SETUPS (see Figure 3 15)