MC2 Audio Delta Series Application Note

APPLICATION NOTE
Introduction
The General Purpose Input and Output pins on the DPA Series can be programmed in a variety of
ways to adjust the operation of the amplifier.
To configure the GPI interface, from the home screen, press MENU, choose the INTERFACE Sub-
Menu and press ENTER.
Use the encoder or BACK and NEXT keys to select GPI Interface and press ENTER.
This will invoke a series of further choices to determine the operation of the inputs, as outlined below:
Operating Mode
Use the encoder to select from the list of combinations of operating modes for the two GPI inputs.
The available combinations are given at the end of this document. Press ENTER to confirm selection
and move to the next option.
RS485 Relay
Use the encoder to select if RS485 relay should be used for the two GPI inputs. Use the encoder to
choose from the four possible options and press ENTER to confirm selection finish set-up.
To enable reception of these relayed commands, other amplifiers need to have their External
Interface set to receive on either "RS485 only" or on Ethernet/USB connections, the RS485 Relay
mode must be set to "Simple" mode. Baud rate must match on all amplifiers.
INTERFACE Sub-Menu
External Interface
INTERFACE Sub-Menu...
GPI Interface
GPI1 Mode
VCA:A+B Sys.Mute*
GPI1 RS485 Relay
Yes
Delta Series, DPA Series
How to configure and use the GPIO port.
GPI2
GPI2
No*