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HD9626DSK Instruction Manual
PRESET
GPI Setup
A CTransition
A CTransition: No
A CTransition: Ye
3.9.6. Configuring the GPO Outputs
The HD9626DSK Downstream Keyer is fitted with 4 contact closure general purpose outputs (GPOs)
that can be used as tallies for various functions. Use the
of available GPO's (1 through 4). The function of each GPO is displayed in brackets. To change the
function of a GPO press the SELECT pushbutton. The GPO's are active low and require a pull-up
resistor to make them high when not active. See section 2.7 for information on connecting the GPO's.
All the GPO's have the same functions available. These functions are described below.
PRESET
GPO Setup
GPO 1 - 4
None
Bypass
Transition
Video C Invalid
Video C Valid
Video B Invalid
Video B Valid
Video A Invalid
Video A Valid
Fan OK
Power OK
PSUs Okay
PSU1 Okay
PSU2 Okay
DSK Statu
Program A
Program B
Program Black
Page 3-18
This menu item is used to select whether a transition will occur when the
GPI is closed to ground.
Select No to not perform a transition when the GPI is closed.
Select Ye (yes) to perform a transition when the GPI is closed.
Select None to disable the GPO
Select Bypass to make the GPO low when BYPASS is selected on the
panel.
Select Transition to make the GPO low when TRANSITION is selected on
the panel.
Select Video (A, B, or C) Invalid to make the GPO low when there is
invalid video on inputs A, B or C is invalid.
Select Video (A, B, or C) Valid to make the GPO low when there is invalid
video on inputs A, B or C is valid.\
Select Fan OK to make the GPO low when the fans are functioning.
Select Power OK to make the GPO low when either PSU1 or PSU2 are
functioning.
Select PSUs Okay to make the GPO low when both PSU1 and PSU2 are
functioning.
Select PSU1 Okay to make the GPO low when PSU1 is functioning.
Select PSU2 Okay to make the GPO low when PSU2 is functioning.
Select DSK Statu (status) to make the GPO low when the Downstream
Keyer function is active on the Program bus.
Select Program A or B to make the GPO low when the specified source is
being output on the Program bus.
Select Program Black to make the GPO low when black is being output on
the Program bus.
Revision 1.4
or
pushbuttons to scroll through the list
OPERATION
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