Appendix A •
Request System Configuration - CMD12 (3Ch)4
Request the System 4xi Configuration.
Format:
ESC, CMD12, EOT
Response:
ESC, CMD12, ERC, LD Sync, RGB Delay, Aud Mute, Status 1, LDxi Misc, reserved, EOT
Where: ESC, CMD12 = 1Bh, 3Ch | ||
LD Sync | 81h = Composite Sync with no serration pulses | |
| 82h | = Sync negative (horizontal & vertical) |
| 83h | = Composite Sync with serration pulses |
| 84h | = 6Sync positive (horizontal & vertical) |
| 85h | = 6Sync positive horizontal, negative vertical |
| 86h | = 6Sync negative horizontal, positive vertical |
RGB Delay | 80h - 8Ah = RGB Delay in 0.5 second steps | |
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| (values range from 0 to 5 seconds) |
Aud Mute | 80h = Audio is not Muted | |
| 81h | = Audio is Muted |
Status 1 | 80h - 83h (See table below.) |
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| Bit # | 7·6·5·4·3·2 | 1 | 0 |
Function: |
| Sys Power | Model | |
Power is Off | 1·0·0·0·0·0 | 0 | x | |
Power is On | 1·0·0·0·0·0 | 1 | x | |
Sys 4C |
| 1·0·0·0·0·0 | x | 1 |
Sys 4LD, 4LDex, 4LQex | 1·0·0·0·0·1 | x | 0 | |
Sys 4LDxi, 4LQxi | 1·0·0·0·0·1 | x | 0 |
LDxi Misc6 | 80h | - AAh (See table.) |
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| Bit #s | 76 | 54 | 32 | 10 |
Function: |
| – | Demo | Freeze VGA | ||
Demo mode On | 10 | 01 | xx | xx | ||
Demo mode Off | 10 | 10 | xx | xx | ||
Freeze On |
| 10 | xx | 01 | xx | |
Freeze Off |
| 10 | xx | 10 | xx | |
Not VGA resolution | 10 | xx | xx | 01 | ||
Force VGA resolution | 10 | xx | xx | 10 | ||
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reserved | 80h | = reserved |
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EOT | 04h | = End Of transmission |
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4.This command is only available in System 4xi units with the following firmware revision levels, or higher: System 4LDxi – revision 3.0 System 4LQxi – revision 4.0
6.Only available on System 4LDxi and System 4LQxi
Example: (Request System Configuration) 1Bh, 3Ch, 04h
Response:
1Bh, 3Ch, 80h, 83h, 80h, 81h, 82h, A9h, 80h, 04h
Says: LD Sync = Composite with serration pulses, RGB Delay = none, Audio is Muted, Model = System 4LDxi , 4LQxi , Switcher Power = On, Demo Mode = Off, Freeze = Off and VGA Resolution is not forced.
Extron • System 4xi Switcher Series • User’s Manual |