Wavetek ANT-20, Operating Manual

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Broadband Analyzer/Generator ANT-20/ANT-20E
O-16 Operation
4 Port configurations (topologies) and
Instrument Configuration
VI: ATM Test Control
4.1 Overview
To simplify the basic setting of the instrument for ATM measurements, all the fundamental
settings are made from a central dialog. This “Instrument Configuration” dialog handles the
following:
•
Selecting the topology (port configuration)
•
Configuring the physical layer
•
Configuring the ATM layer
•
Enabling and configuring signaling emulation
4.2 The “Instrument Configuration” dialog
The “Instrument Configuration” dialog is used to set the port configuration or topology for the
measurement task and to match the instrument to the protocol layers used. You can also select
whether permanent (PVC) or switched (SVC) virtual circuits are to be tested. If switched virtual
connections are selected, you can also configure the signaling emulation and set the ATM
address of the instrument in this dialog.
The dialog shows the selected configuration in graphical form along with push buttons that open
further dialogs for a given layer. This is also the case for the physical layer; the “Signal
Structure” VI is opened when the “PHYSICAL” button is clicked, assuming that the “Signal
Structure” VI has been loaded in the current application.
Fig. O-16 The “Instrument Configuration” dialog; e.g. with “Emulate” topology and Signaling
Port configuration
Configuration:
(topology)
Signaling for
switched virtual
circuits
Signaling
Protocol layers