GUIDE TO INSTALLATION AND OPERATION
XVP-3901 |
105
5.16.3
Lock Input Selection
section
When User Presets are saved, the input selection is saved as well. This means that changing User Preset may
change input selection, depending on which one is associated with the User Preset. This is the normal behavior when
”
Update Input Select with User Preset
” is chosen.
Selecting “
Do Not Change Input Select with User Preset
” forces the input selection to remain unchanged, while
applying all other settings associated with the selected preset.
5.16.4
GPI
section
The six GPI inputs are used to trigger some selected functions, as follows:
•
GPI 1 – Restore User Preset 1 configuration
•
GPI 2 – Restore User Preset 2 configuration
•
GPI 3 – Restore User Preset 3 configuration
•
GPI 4 – Restore User Preset 4 configuration
•
GPI 5 – Select card input 1
•
GPI 6 – Select card input 2
The GPIs are all contact closures to ground (GND). To select a User Preset (GPI 1 to 4) or an Input Select (GPI 5 &
6), simply short the corresponding GPI input pin to any GND pin. GPI 1 & 5 can also be used to trigger a different
function when the GPI contact closure is released (low to high transition).
GPI loading is a “single load” process triggered by a transition to ground: it needs to be activated only for a short
period (around 10 milliseconds) to be detected by the card. Since it is not activated by a level, it is not necessary to
maintain the level at ground after the activation.
Enable the indicated function for each GPI by clicking the checkbox beside it; disable it by clicking the box again to
remove the checkmark. The GPI events are sent to the audio card through the ABUS regardless of the state of the
checkbox.
The current state of each GPI is reported by the “State” icon.
•
When a contact closure to ground is present on the GPI input, the state icon will be green.
•
Otherwise, the state icon will be gray.
GPOs are also contact closure to ground. A low level indicates the GPO is currently active. When a user preset is
activated by GPI, iControl or by the card menu, the corresponding User Preset GPO is also activated. If the card
configuration is modified, the GPO will be cleared at the same time.
Action on Release, Load…
You can select actions to occur when GPI 1 and GPI 5 are released, allowing a “switch & return” type of operation.
•
GPI 1 triggers USER 1 when activated; it can trigger USER 5 when released.
•
GPI 5 selects Input 1 when activated; it can trigger Input 2 when released
Use the checkboxes to activate these release functions.
