Command Line Responses
Command characters and numbers appear on the screen when the system accepts
them. A command line has successfully executed when the entered “T” command
appears. If a command or number is not accepted, a different character appears and
the command is not executed. See the following table for command line responses
and their meanings.
Response Meaning Description
? Format Error Indicates an error in the entry of the command line format
X General Error Indicates all or part of the command was rejected
E Communication Error Indicates a communication problem with the control panel
BCS
Command
Entered
Appears in the
Terminal Emulation
Program
Explanation of Result
CL2I3O2T CL2I3O2T The command was successfully executed
CL2I2T CL2I2?
The command was not executed because the output and its
number were not included
CL2I3O22T CL2I3O22X
The command was not executed because the Precis
LT
does
not have an Output 22
CL2I3O2T CL2I3O2E
The command was not executed because a communication
failure occurred
Executing a Test Switch
The Precis
LT
ships from the factory with a default switch routing the signal from
Input 1 to all outputs on both levels. Before you use the system for normal
operations, disconnect the default switch and execute a test switch to verify that the
system is working correctly. Before executing a test switch, attach the source and
destination devices to the enclosure (see Attaching Video Cables on page 8 and
Attaching Audio Wires on page 11), apply power to the enclosure (see page 16), and
then apply power to the source and destination devices.
You can use BCS commands to execute a test switch even if your enclosure has a
control panel, as long as an external controller is attached.
BCS Serial Control Protocol 44
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