RS-232 Command/Response Table
ASCII to HEX Conversion Table | ||
ABBREVIATIONS & DEFINITIONS: |
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= CR/LF, · = SPACE, A = AUDIO, AUTO = AUTOSWITCH, |
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C = |
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M = MAXIMUM INPUTS, QVER = SOFTWARE VERSION |
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X1 = Ø – 6 (INPUT Ø = MUTED OUTPUT) |
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X2 = SOFTWARE VERSION X.XX |
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X3 = NUMERICAL VALUE |
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X4 = Ø TO 15 (16 STEPS + OR |
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X5 = MODE - 1 = FRONT PANEL, 2 = AUTO |
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X6 = 6 (TOTAL # OF INPUTS) |
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| COMMAND | RESPONSE |
Command Description | ASCII | to Host |
Select input channel X1 Audio only | X1 $ | A X1 |
Example: Select Input channel #2 audio | 2$ | A2 |
Select input channel X1 Video only | X1 & | V X1 |
Example: Select Input channel #5 video | 5& | V5 |
Select input channel X1 Audio and Video | X1 ! | C X1 |
Example: Select Input channel #6 A & V | 6! | C6 |
Set channel X1 positive audio gain to X4 | X1 * X4 G | IN X1 ·AUD= X3 |
Example: Set Input 2 Audio Gain = +7 | 2*7G | IN2·AUD=+7 |
Set channel X1 attenuation to X4 | X1 * X4 g | IN X1 ·AUD= X3 |
Example: Set Input 3 Audio Gain = | 3*13g | |
Set Front Panel Mode | #1 | F1 |
Set | F2 |
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Information request | i | (Same as I below) |
Information request | I | V X1 ·A X1·F X5 ·QVER X2 ·M X6 |
Example: | I | V3·A3·F1·QVER1.23·M6 |
Request for part number | n | (Same as N below) |
Request for part number | N | |
Query Software Version | q | (Same as Q below) |
Query Software Version | Q | QVER X2 |
Example: | Q | QVER1.23 |
Explanation: Software version is 1.23 (example only) |
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View input channel X1 Audio Gain | v X1 G | (Same as V below) |
View input channel X1 Audio Gain | V X1 G | IN X1 ·AUD= X3 |
Example: | V3G | |
Explanation: Input 3 Audio Gain = |
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Error Response Codes
Invalid input channel (out of range) | EØ1 |
Invalid input channel change (Autoswitch mode active) | EØ6 |
Invalid mode parameter | EØ9 |
Invalid command received by SW6 VGA Audio | E1Ø |
Invalid value (out of range) | E13 |
SW6 VGA Audio
When a local event takes place, such as a front panel operation, the SW6 VGA Audio switcher responds by sending a message to the Host. The switcher initiated messages are listed below (underlined).
(C) COPYRIGHT 1998, EXTRON ELECTRONICS SW6 VGA AUDIO, Vx.xx
C1 | The copyright message is initiated by the switcher when it is first powered ON. Vx.xx is the |
| software version number. This is followed by C1 identifying the current selected input = 1 |
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Cx | This message is sent to the Host if the input is changed using the front panel. (x = new input #) |
RECONFIG | This message is sent to the Host when there is a change in the audio level setting. |
The switcher does not expect a response from the Host to any of the above
Audio Level
Audio Level Control
The Audio Level Setting (Gain) for each input can be viewed, changed and saved in memory using the switcher front panel buttons or with
front panel buttons, the Switcher AUDIO LED must be blinking. This is controlled by the AUDIO button. To view or change the audio setting, first select the desired input, then press and hold the AUDIO button until the AUDIO LED (above the AUDIO button) begins blinking. The current memory Audio Level Setting for the selected input will be displayed in the input select LEDs
The sum of the values represented by the five LEDs is the Audio Level setting for the selected input. The +dB and/or the
In Example 1 above, the AUDIO LED is blinking indicating that LEDs
In Example 2 above, the AUDIO LED is blinking indicating that LEDs
Input buttons 5 and 6 may be used to increase or decrease the current audio level setting. To change the setting for the last example from +5 dB to
The displayed setting in the example above has changed to
Audio Level Reset
To reset the audio level to 0 dB for all inputs, press and hold the AUDIO button. The AUDIO LED will begin to blink. Continue to hold the AUDIO button in (approximately 10 seconds) until the AUDIO LED goes OFF. All input audio levels will be set to 0 dB.
3 | SW6 VGA Audio • | SW6 VGA Audio • Audio Level | 4 |