Serial Communication, cont’d
Using the command/response table
The Command/response table for Simple Instruction Set (SIS) commands is shown at right. The symbols used throughout the table represent variables in the command/response fields. Lower and upper case letters are interchangeable, and command and response examples are shown throughout the table.
The ASCII to HEX conversion table, below, is for use with the command/response table.
ASCII to HEX Conversion Table |
• |
Symbol definitions
] = CR/LF (carriage return with line feed)
•= space
X! | = Input number (1 through 4) |
X@ | = Input signal status: 0 = no signal detected, 1 = signal detected |
X# | = On/off status: 0 = off, 1 = on |
X$ | = Switch mode: 1 = normal, 2 = auto |
X% | = Input number response (1 through 4) |
Command/response table for Simple Instruction Set (SIS) commands
Additional Description |
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Response | (switcher to host) |
ASCII Command (host to switcher) |
Command
Select input X!. For X!: input 1 through 4.
In X% ]
X! !
Input selection
Each X@response is the signal status of an input, from | input 1 to 4. X@= 0 (no signal) or 1 (signal detected). | Input 1 = signal present; input 2 = no signal present; input 3 = no signal present; input 4 = signal present. | X!signal's status = X@. |
Sig • X@ • X@ • X@ • X@ ] |
| Sig • 1 • 0 • 0 • 1 ] | X@ ] |
0 S | 0 S | X! S |
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Input video sensing Request all inputs' status | Example | Request an individual input's | status |
1 = on. |
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= off; |
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For X#: 0 | status. |
Video mute. | Video mute |
X# ]
Vmt X# ]
B
X# B
Read mute status
Mute/unmute video
Video mute
1 = normal, |
| mode. | normal mode |
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Set to normal or autoswitch mode. For X$: 2 = auto. | For X%: current selected input | For X$: switcher is in normal (1) or auto (2) For X#: video mute is off (0) or on (1). Video is selected on input 2 (V2); switcher is in (F1); video mute is off (Vmt0). | View the firmware version. | View the part number. | Upload firmware. Resets unit to factory defaults. | |
| F• X$X% • Vmt X# ] |
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| 11] |
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| 0Vmt] |
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| • |
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FX$ ] | V |
| F 1 | x.xx ] | ||
| V | |||||
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| • |
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| 2 |
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X$ # | I |
| I | Q | N | EUpload] EZxxx |
Mode select Normal/autoswitch mode | General information |
| Example | Query firmware version | Query part number | Upload firmware System reset (factory default) |
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3-4 MSW 4V SDI rs • Serial Communication
MSW 4V SDI rs • Serial Communication |