PRELIMINARY
Serial Communication, cont’d
Command/response table for SIS commands (continued)
| Command | ASCII Command | Response | Additional description |
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| (host to switcher) | (switcher to host) |
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| Volume adjustment |
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| Set the overall output volume | X^ V | Vol X^ ] | Specify the volume |
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| the audio output. |
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| Example: | 27V | Vol027 ] | Set volume to 27. |
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| Increment the volume | +V | Vol X^ ] | Increase audio output. |
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| Decrement the volume | Vol X^ ] | Decrease audio output. |
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| View the volume level | V | Vol X^ ] | Show the output volume. |
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Status commands
These commands allow you to view the status of the clip indicator between adjustments to the audio input levels, the Volume Control Module status, the high pass filter status, and the internal temperature of the device.
View the clip (max) status | 3S | Sts3*X# ] |
View the VCM present status | 40S | Sts40*X1# ] |
View the high pass filter status | 41S | Sts41*X# ] |
View the internal temperature (ºC) | 20S | Sts20*X1$ ] |
Front panel security lockout modes (executive modes)
Disable executive mode (unlock) | 0X | Exe X# ] | Adjustments and selections can |
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Enable executive mode 1 (lock) | 1X | Exe X# ] | Lock front panel input selection |
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| buttons; select inputs via |
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| or IR remote control only. Only |
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| volume adjustment is available |
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| via the front panel. |
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| This command is equivalent |
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| to pressing and holding front |
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| panel buttons 1 and 4. |
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View the executive mode status | X | Exe X# ] | Show executive mode status. |
Example: | X | Exe0 ] | Executive mode is off |
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Firmware version, part number & information requests
Query firmware version number | Q | |
Request the part number | N | |
Request model name | 1I | |
Request general info | I or 0I | |
(single switcher mode) |
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Video input # | X1 | |
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X2! ] | Show the switcher’s firmware |
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Show the switcher’s part #. | |
PVS 204SA ] |
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(see below ) | Show the switcher’s status. |
Vid X1 • Aud X1 • Vol X6 
(Single sw mode)
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Audio input |
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| Audio volume |
| Switcher mode | ||||||
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| status | ||||||||
# | X1 | is |
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selected/active |
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| Vga |
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| • Vid* |
| • Aud* |
| • Vol |
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| X1 | X4 |
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(separate switcher mode) |
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RGB input # | X1 |
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Upload firmware |
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Upload | E Upload ] |
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| Go ] |
| The switcher will start upload- | |||||||||||||||||||||
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| ing firmware code into its | |||||
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| memory. |
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| Upl ] |
| The firmware was successfully | ||||||||||||||||||
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| loaded into the switcher. | |||||