Technical data

www.asti-usa.com ASTi DACS: Operation & Maintenance Manual (Version 4, Rev. B.1)

Model Builder Model Timing Window: The model builder Model Timing Window indicates the

status of the model processor. To get to the window go from the Main Menu to the “Models”

Menu, and then to the “Times” menu. For a complete description of the model timing window, see

the reference manual.

Figure 7: MODEL TIMING WINDOW

The System Run State

indicates whether the Models are running or frozen. If the system is frozen,

no sound will be generated. The Model can be frozen and unfrozen by pressing the F3 key.

The Indi

vidual Model Run States should be set to run. If any are set to freeze, the corresponding

DSP card will not produce any sound.

The Master Frame Counter

should also be incrementing. If not, check the DSP timing window for

a better idea of what the problem might be.

If most of the numbers are missing, the Waveform Synthesizer cards may be jumpered wrong.

The Ov

erRun Counter should be zero. If a large model is running, and the OverRun counter is

incrementing, it means the Model Processor can’t keep up with the model, and the model may not

be acting correctly. To compensate for this, model rate can be reduced. See the section on the

Model Timing Window in the Reference Manual.

Ethernet Status Page: The Ethernet Status page indicates the status of the link between the host

computer and the DACS. To get to the Ethernet Status page, go to “Host Interface” in the Main

Menu, and then go to “Ethernet Status”. If only the word “Status” appears in the host interface

menu, and this page says “KEY INVALID OR NO HOST INTERFACE PRESENT” then either

there is no ethernet card, or the options ﬁle is not valid.

Note: The options ﬁle is preset at the factory, and cannot be changed by the user. If you have prob-

lems with your options ﬁle, please contact ASTi.