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SBX-32 PANEL OPERATION
The SBX-32 is a single bus control panel capable of addressing any of 64 INPUTS to one
OUTPUT in the Sigma ADX Series switching matrix. The panel is capable of operating in several
modes. It can operate in a
FOLLOW
mode, meaning that the same input for all levels will change
when a switch is made. It can also operate in a
BREAKAWAY
mode, where only the selected
input level will change or a
SPLIT
mode where the level(s) can be individually set. Additionally, any
input level can be
LOCKED
, preventing it from switching in any mode.
Each remote panel is controlled by the SCI-ADX interface card located in the ADF-64 frame.
Connection is made between the SCI-ADX and the SBX-32 through coaxial cable attached to the
BNC’s labeled "COMM". This coaxial cable can be up to 1000 feet in length. Additional panels can
be added by using BNC "T" connectors to tap off another line to the next panel. The system is
capable of handling up to 64 panels in total. The system will allow any mixture of either full matrix
or single bus panels. Each panel in a system must have a unique address. Addresses are set
utilizing the DIP switch located at the rear of the control panel. If the control panel cannot establish
initial communications with the SCI controller via the COMM line, 00 will be displayed in the level
windows and the keyboard will not function.
Green numeric LED’s display the current input levels. If any level is in a preset condition, the
respective display window will flash.
The SBX-32 is an intelligent panel in that it will automatically configure itself to the size of the
system for which the SCI-ADX is configured. See separate information on the SCI-ADX for details
of system matrix configuration.
The SBX-32 front panel is divided into 3 sections: LEVEL, SOURCE, and TAKE.
LEVEL:
Along the top portion of the control panel are four
LEVEL
buttons. This allows selection
of any one of the four levels. When no
LEVEL
button has been selected, the panel is operating in
a
FOLLOW
mode.
A single momentary press of the desired level button activates a
LEVEL
that causes the
respective display to go blank. This operation will allow a
BREAKAWAY
(where only one level is
changed) or a
SPLIT
(where multiple levels select different sources). To execute a
BREAKAWAY
,
select the desired source after selecting the level and then press the
TAKE
switch to complete the
operation. To execute a
SPLIT
, alternately select
LEVELS
then sources until all desired levels are
preset. Complete the operation by pressing the
TAKE
button.
When a source is selected, it will be displayed (flashing) in the active
LEVEL
window(s). One
or more
LEVEL
windows may be active at the same time and each can be set for a different
source. Once a
LEVEL
is activated and a source selected, another
LEVEL
can be activated and a
different source selected for the second level. A second press of any active
LEVEL
will clear the
preset mode. Once the input levels are preset, the
TAKE
can be pressed to initiate the switch.
Another feature of the
LEVEL
button is to individually
LOCK
the levels from being changed.
The
LOCK
feature only prevents a source from being switched from the specific control panel that
is locked. It does not effect another control panel or the serial control of the switcher. To
LOCK
a
level, press and hold the desired
LEVEL
button for 2 seconds. The lock must be performed when
the control panel is not in the preset condition. The display will initially blank until the 2 seconds
have elapsed, then the display will return and the LED incorporated into the
LEVEL
button will be
illuminated. This level is now
LOCKED
. It cannot be selected or changed from this panel without
canceling the
LOCK
mode. To cancel the
LOCK
mode, press and hold the respective
LEVEL
button for 2 seconds. When unlocked, the LED will be extinguished. One or more levels can be
LOCKED
at the operator’s discretion.