Crystal Vision
Card edge operation
TANDEM HD-20 User Manual R1.4
23
24/05/2007
Preset menu
Up to sixteen setups may be stored for the board and recalled either from the board
control, active front panel, Statesman or through the use of external GPIs. Presets store
board setup data including operating mode and option card status. If at any time a sub-
PCB is changed for a different type, i.e. from an input type to output type, any previously
saved preset configurations will become invalid. The presets are numbered 1-16.
Note: Care should be taken when storing presets that the desired configuration is not
changed by any external input prior to saving.
Menu
Comment
Save and recall
Presets 1-16
To save a user configuration from the board edge.
Press ENTER to select the preset menu.
Rotate SCROLL to find the required preset location.
Press ENTER to access the location and SCROLL to select save or
recall.
Press ENTER to action.
Enable GPI
control of presets
Rotate SCROLL to select Enable
Selecting Enable allows the recall of previously saved user
configurations via GPI inputs 0-3.
Alarm menu
The alarm menu allows the user to customise the alarm reporting from the TANDEM
HD-20 to suit their individual needs. TANDEM HD-20 has two alarm outputs, GPO5 and
GPO6. These GPI outputs in their non-alarm condition are held to the in5V via a
6800Ohm resistor. An alarm condition will force the GPI output to less than 0.5V of
frame 0V through a 270Ohm resistor. This makes the GPI outputs capable of driving an
external LED or logic circuit as required. For ease the configurable alarms have been
divided into two groups: the video alarms appear on GPO5 and the audio alarms on
GPO6. The alarm option menus then allow the user to configure the alarm reporting by
either flagging or masking individual alarms.
Menu
Comment
Video Alarms
Press ENTER to access the video alarms menu. SCROLL to view sub
menus.
Audio Alarms
Press ENTER to access the video alarms menu. SCROLL to view sub
menus.
