Extron electronics SW2 USB User Manual page 21

Mode SIS Command
E
Loop 1
1LOOP
Loop 0
E
0LOOP
(Default Mode)
See the "Command and Response Table for SIS
and Control" section for an explanation of all supported SIS commands.
NOTE:
You can issue commands to the SW USB using the front panel buttons, RS-232,
or contact closure in both loop modes. The loop mode selection affects only
commands going through the RS-232 Pass Thru port to the AV switcher.
SIS command processing
When an AV switcher is connected to the RS-232 Pass Thru port, SIS commands are
processed in one of the following ways:
Passed through to the AV switcher without being acted on by the SW USB
•
• Performed by the SW USB and not passed through to the AV switcher
• Performed by the SW USB and passed to the AV switcher, which also performs them.
This applies only to the input selection command X!
The table below shows how the SIS commands are handled by an SW USB with a connected
AV switcher. (Unless otherwise indicated, commands are not case-sensitive.)
SIS Command SW USB Function
! Performed and passed through
^ Performed, not passed through
Performed, not passed through
(any)
E
X
Performed, not passed through
N
Performed, not passed through
Q
Performed, not passed through
*Q
Performed, not passed through
I
Performed, not passed through
– Passed through, not performed*
0V 100V
&
Passed through, not performed*
% Passed through, not performed*
, Passed through, not performed*
1B 0B
, Passed through, not performed*
1M 0M
, Passed through, not performed*
1Z 0Z
$ Passed through, not performed*
* For explanations of commands that are passed through to the AV switcher and not
performed by the SW USB, see your AV switcher user guide.
Commands Passed Through to an AV Switcher
}
Only SIS commands received via the RS-232 control
port
• Input selections made via contact closure or the
}
front panel buttons
• SIS commands sent via the RS-232 interface
(loop 1 functionality)
Commands" in the "SIS Programming
, where X! is the input number.
!
SW USB Response to Host
Chn
Usb
See the
X# ]
60-95n-02
n.nn
n.nn.nnnn
Chn
CMD
CMD
CMD
CMD
CMD
CMD
CMD
X! ]
X! ]
SIS command table.
]
]
]
X! • X$ X$ ]
InACT OutACT
]
]
]
]
]
]
]
SW USB Series • Operation 15