StudioTech M46-00180 manual Technical Notes, Factory Test Mode, Software Version Display

Factory Test Mode

Back-panel DIP switch 4 allows a factory test mode to be enabled. During normal operation switch 4 should remain in its off (down) position. When switch 4 is in its on (up) position factory mode is active. En- abling this mode will result in the following operating condition: during an auto null sequence the associated 4-wire output channel will remain active. This will allow the tones associated with the nulling pro- cess to be present on the 4-wire output. While not appropriate during actual Model 46 use, it is interesting to “hear” the null- ing process take place. But unless direct- ed by factory personnel switch 4 should remain in its off (down) position.

Technical Notes

Software Version Display

A special Model 46 power-up sequence allows the unit’s software version number to be displayed. This is useful when work- ing with factory personnel on application support and troubleshooting situations. The four status LEDs associated with interface 1 are used to display the major release number with a range of 1 through

4.The four status LEDs associated with interface 2 are used to display the release sub-number which again ranges from 1 through 4. Refer to Figure 9 for a detailed view of the status LEDs and the corre- sponding software version numbering scheme. The Model 46’s initial software release is version 1.1 which is represented by the bottom LEDs of each status column being lit.

Interface 1 LED Section	Interface 2 LED Section
(Major Release Number)	(Release Sub-Number)

O 4	.4	O
O 3	.3	●
O 2	.2	O
● 1	.1	O

Figure 9. Detail of front panel showing the status LEDs that display the software version. In this example, the software version is 1.3.

Issue 2, September 2007	Model 46 User Guide
Page 26	Studio Technologies, Inc.