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Appendix 3
GPI’s explained
Introduction
This appendix describes the functionality of the GPI’s generally
used within the Synapse based products.
General functionality
The physical contacts of a General Purpose Interface can be
assigned by the user. In our cards the General Purpose Interface
contacts (GPI contacts) will be named as General Purpose Input
(GPI) or General Purpose Output (GPO). The GPI inputs and
outputs are assignable to different preset banks. These preset
banks (GPI pools) can be used to switch multiple settings at once.
Some examples of these functions:
Input selection
Output mode
Up conversion aspect ratio for channel A and B
Down conversion aspect ratio for channel A and B
Cross conversion aspect ratio for channel A and B
Transparent aspect ratio (equal in-output) for channel A and B
Insertion of VI, WSS, AFD (S2016) for channel A and B
Audio shuffling, gain and phase
Contact assignment
The physical contacts can be assigned as input or output. In the
menu of a card, these will be called
Contact_N
depending on
the amount of contacts available. Contacts could be Inputs,
outputs or bi-derictional I/O. The
Contact_N
menu item will be
used to assign this specific contact to input or output pools. The
choices are
Off
,
GPI_A
,
GPI_B
,
GPI_C
, …,
GPI_N
,
GPO_A
,
GPO_B
,
GPO_C
, …,
GPO_N
depending on the amount of contacts
and pools.
Pools
A GPI/GPO pool is a place where contacts are collected to form
an output trigger.
GPI Pool
Action
Card
specific
1
n
2
3
Take
