Grass Valley Imagestore 750 v.2.0.1 - Manual (Page 133)

Imagestore 750 User Manual Front Panel Operations
Miranda Technologies Inc. Page 133
GPI Out 14 On
GPI Out 14 Off
GPI Out 15 On
GPI Out 15 Off
GPI Out 16 On
GPI Out 16 Off
Show GPI IPs
General Purpose Interface (GPI) ports may be used either to trigger the
execution of a series of Imagestore 750 internal pre-programmed commands
(input) or to monitor the status of the Imagestore 750 (output).
The sixteen GPI ports are identified as GPI 1 through GPI 16. All sixteen
GPI ports may be configured for both input and output. Any GPI, assigned to
‘input’, may have a macro associated with it that contains up to 2K bytes of
command data (approximately 200 commands strings). When triggered, the
commands within the macro execute sequentially, and pauses may be defined
within the macro. If the GPI is assigned as an ‘output’, it may only have a
single status associated with it from the list on page 137.
Input to GPI
Where a GPI port is used as an input, the command macro is activated either
when the connection is made (GPI On), or when it is switched off (GPI Off)
relative to the GPI ground pins (13 and 32) on the GPI 44-way D type
connector – (or pins 13 and 15 on the GPI 25-way D type connector for older
Imagestore 750 units).
To start a macro associated with GPI In 1 On, make connection between pins
GPI1 and (GPI GND, see Installation section for connector pinout).
To start a macro associated with GPI In 1 Off, break connection between pins
GPI1 and GPI GND,
For connector information refer to the diagram on page 278.