Specifications

Precis Instruction Manual 25
BCS (BASIC CONTROL STRUCTURE) COMMANDS
Key Function Description
C Change
Initiates an execute switch command; this must precede the source and destination
specifications
D Disconnect
Initiates a disconnect switch command; this must precede the source and
destination specifications
L Level
Flags the next 1- to 2- digit number as a level number
Default settings are: Level 0 - Audio and Video
Level 1 - Video only
Level 2 - Audio only
“0”-“9” Number
Identifies inputs, outputs, macros, and levels; combine the digits to form larger
numbers
I Input
Flags the next single digit number as an input specification
O Output
Flags the next 1- to 2- digit number as an output specification
Note:
O is the letter O, not the number zero (0)
“ ” Space
Separates numbers in multiple number entries
T Take
Executes a command
X Exit
Exits, or cancels, the command being entered
S Status
Initiates verification of the status of input and output connections
R Macro
Initiates an execute global macro or execute local macro command
Note: Global macros are not implemented at this time
P Macro Number
Flags the next 1- to 2- digit number as a local macro number
VA Volume Absolute
Flags the next1-3digit number as the volume adjustment to a specific decibel
level
VR Volume Relative
Flags the next1-3digit number as the volume adjustment of a specific decibel
amount
VS+ or VS-
Volume Step
Increment/Decrement
Adjusts volume of a specified output up or down a step
VM or VU Volume Mute/Un-mute
Applies or removes mute to the volume
The table below shows BCS command characters (keys), their functions, and short descriptions of their
functions.