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Hardware Panels Reference
D.2.8 Alt-lev
The Alternate level shift function is used on panels where there are more levels than level
buttons, allowing individual control of all levels. It operates in a toggle on/off manner with an
LED/lamp used to indicate the level shift - when the LED/lamp is off then the non-shifted
levels are controllable and when the LED/lamp is on the shifted levels are controllable.
The level shift function is button programmable on all panel types (BPX and X-Y). Any source
or destination button can be configured as a level shift button.
D.2.9 Clear
This key is used as a source preset or destination clear key and is generally assigned to the
bottom right key on the keypad of a 6276 or 6277 panel.
D.2.10 Controllable Destinations
This applies to X-Y panels only. Any destination can be configured to be controllable (default)
from a given X-Y panel. Routes may be viewed but cannot be changed.
D.2.11 Destination Keypads
All X-Y style panels have a destination keypad. This is either button-per-destination (BPD) as
on 1U XY panels, or dial-up (multiple button presses) as on 6276 panels. These are
configured in the database.
Press a destination button (BPD) or a sequence of buttons (dial-up) to select a destination
association. The advantage of a dial-up keypad is that many more destinations may be
accessed from the same size keypad.
The pressed button either illuminates if it has a valid associated destination association index,
or has alphanumerics to display the name of the selected destination association.
On power-up no destination button is selected, so all destination buttons are extinguished,
and any destination displays on X-Y panels are blank.
D.2.12 Source Keypads
All control panels have a source keypad. This is either a button-per-source (BPS) as on 1U
panels or dial-up (multiple button presses) as on 6276/6277 panels. These are configured in
the database.
Press a source button (BPS) or a sequence of buttons (dial-up) to select a source
association. The advantage of a dial-up keypad is that many more sources may be accessed
from the same size keypad.
The source keypads on 6276/6277 panels are used to pre-select sources, not route them.
These panels have <TAKE> buttons to confirm the selections.
The pressed button either illuminates if it has a valid associated source association index, or
has alphanumerics to display the name of the selected source association.
D.2.13 Panel Swap Mode
Panel Swap Mode is available for 6276 and 6277 panels. When activated in the database, it
causes the taken source and the preselected source to swap, or interchange, and therefore
allows the previously taken source to be re-routed with another TAKE. This could be
considered to be an undo facility, for quickly reverting to the previous selection.
This feature is currently supported on a 2450 controller only.
Issue 1 Rev 4
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© 2013 Snell Limited