Page
52
DP226
Operators
Manual
Appendix 5: Additional Information: General Purpose Interface
The GPI (General Purpose Interface) allows the recall of memories via an external
switch box, alleviating the need for a computer system when only memory changes
are needed.
This information is reproduces in the application note that accompanies the GPI kit
itself. The following parts are contained in the GPI Kit.
•
One GPI Interface card;
•
One 15pin D-type to 9pin D-type adaptor;
•
One male 15pin D-type with hood;
•
Software upgrade disk;
•
One application note.
Software Installation.
Note that the interface will only operate with software version 3.10 (supplied on the
disk) or later. For DP224 units, the earliest compatible version is 2.10. Included on
the disc supplied with the kit is a readme.txt file. This describes the process of
updating the software in the unit from a PC using the RS232 port. The 9-pin D-type
serial cable supplied with the unit (or equivalent) will be required to connect the
COM port of the PC to the unit. Please read the file on the disc for details.
Hardware Installation.
Ensure that the unit is switched off and that the power cord is removed from the
mains supply!
Position the unit so that the front panel is facing you, remove the seven retaining
screws from the top cover and place the screws and cover to one side. Now locate
the RS232 card and remove the retaining bolts (5mm) from the rear of the unit and
unclip the connector from the main circuit board. The card can now be removed and
the GPI card put in its place. Be sure to tighten the retaining screws but be careful
not to strip the thread.
The installation of the card is now complete - please replace the top cover.
What can I do with the GPI interface?
The interface has two modes of operation, ‘Simple’ and ‘Complex’. In ‘Simple’ mode
the interface allows the recall of the first 7 memories and in ‘Complex’ mode the first
31 memories can be recalled. In both cases the user can select whether input
memories or output (xover) memories are recalled or, if desired, both memories at
the same time. The mode of operation and memory recall options can be set in the
GPI SUB MENU located at the end of the MAIN MENU on the loudspeaker
management system.
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