Crystal Vision Indigo ADCA412, Руководство пользователя

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Crystal Vision Using the front control panel
GPI sub-menu
This menu can display the following GPI information:
Display Meaning Notes
GPI1=DUAL GPI1 is NOT asserted low DUAL mode
GPI1=SINGLE GPI1 is asserted low SINGLE mode
GPI2=/SWAP GPI2 is NOT asserted low and GPI1 is NOT asserted low DUAL mode
Inputs NOT swapped
GPI2=SWAP GPI2 is asserted low and GPI1 is NOT asserted low DUAL mode
Inputs swapped
GPI2=AES1 If GPI1 is already asserted low, then GPI2=S1 means
GPI2 is NOT asserted low SINGLE mode
Input 1 feeds AES1&2
GPI2=AES2 If GPI1 is already asserted low, then GPI2=S2 means
GPI2 is asserted low SINGLE mode
Input 2 feeds AES1&2
GPI3=48K GPI3 is NOT asserted low ‘Xtal’ mode
GPI3=AUTO GPI3 is asserted low (only effective if AES reference
input has been selected and a valid input is present AND
GPI4 is NOT asserted low) ‘AUTO’ mode
GPI4=AES/W.CLK GPI4 is NOT asserted low AES or WORD CLOCK
reference selected
GPI4=VIDEO GPI4 is asserted low, or VIDEO syncs already selected VIDEO reference selected
GPI4=INTERNAL GPI4 ignored ADCA412 is fixed in free
run mode
Card edge switches may be used to prevent silence detection from raising alarms via these
GPI outputs. Please refer to the Using card edge controls chapter for more information.
Note:
The routing of ‘Loss of Reference Input’ warning to the GPI port cannot be disabled.
ADCA412 User Manual R2.1 16 30 October 2018