Appendix A •
Simple Instruction List
The table below lists the Simple Instruction Set commands, as well as response and data characters recognized by the System 4xi. Examples of their use are given later. The “Cmd/Rsp” column indicates how the character is used:
Cmd - indicates a host command (or part of a command) to the switcher. Rsp - indicates a switcher response to the host.
| Character Cmd/Rsp | Dec | Hex | Function | |
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| lf | Rsp | 1Ø | Ø A | Line feed |
| cr | Rsp | 13 | ØD | Carriage return |
| ESC | Cmd | 27 | 1B | Initiates an Advanced Instruction Set command (Page |
! | Cmd | 33 | 21 | Delimiter to specify video and audio selection | |
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$ | Cmd | 36 | 24 | Delimiter to specify audio selection only | |
& | Cmd | 38 | 26 | Delimiter to specify video selection only | |
( | Cmd | 4Ø | 28 | Turn the Display mute On | |
) | Cmd | 41 | 29 | Turn the Display mute Off | |
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+ | Cmd | 43 | 2B | Turn the Switcher Audio mute On | |
- | Cmd | 45 | 2D | Turn the Switcher Audio mute Off | |
Ø | Cmd/Rsp | 48 | 3Ø | Numeric value of Ø | |
1 | Cmd/Rsp | 49 | 31 | Numeric value of 1 | |
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2 | Cmd/Rsp | 5Ø | 32 | Numeric value of 2 | |
3 | Cmd/Rsp | 51 | 33 | Numeric value of 3 | |
4 | Cmd/Rsp | 52 | 34 | Numeric value of 4 | |
5 | Cmd/Rsp | 53 | 35 | Numeric value of 5 | |
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6 | Cmd/Rsp | 54 | 36 | Numeric value of 6 | |
7 | Cmd/Rsp | 55 | 37 | Numeric value of 7 | |
8 | Cmd/Rsp | 56 | 38 | Numeric value of 8 | |
9 | Cmd/Rsp | 57 | 39 | Numeric value of 9 | |
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: | Cmd | 58 | 3A | Turn Executive Mode On (discrete) | |
; | Cmd | 59 | 3B | Turn Executive Mode Off (discrete) | |
< | Cmd | 6Ø | 3C | Turn Switcher Main power On (discrete) | |
> | Cmd | 62 | 3E | Turn Switcher Main power Off (discrete) | |
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@ | Cmd | 64 | 4Ø | Delimiter to specify audio & video for the Switcher only | |
| A | Rsp | 65 | 41 | An audio channel character follows |
| B | Cmd | 66 | 42 | Turn RGB mute On for the Switcher only |
| b | Cmd | 98 | 62 | Turn RGB mute Off for the Switcher only |
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| C/c | Cmd | 67/97 | 43/63 | Request projector configuration |
| C | Rsp | 67 | 43 | A Channel character follows (audio & video) |
| E | Rsp | 69 | 45 | An Error code character follows |
| F/f | Cmd | 70/102 | 46/66 | Freeze Mode (On/Off) |
| I/i | Cmd | 73/105 | 49/69 | Request for Information |
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| J/j | Cmd | 74/106 | 4A/6A | Demo On/Demo Off |
| M | Rsp | 77 | 4D | Maximum number of inputs |
| N/n | Cmd | 78/110 | 4E/6E | Request part number |
| O/o | Cmd | 79/111 | 4F/6F | Toggle the Display power (On/Off) |
| P | Rsp | 8Ø | 5Ø | A character for power status of the Display device follows |
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| Q/q | Cmd | 81/113 | 51/71 | Query Software Version - show PC & SC version numbers |
| R/r | Cmd | 82/114 | 52/72 | Toggle the RGB mute for the Switcher only |
| S/s | Cmd | 83/115 | 53/73 | Toggle the Display mute (On/Off) |
| S | Rsp | 83 | 53 | A character for mute status of the Display device follows |
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| T | Rsp | 84 | 54 | A character for video signal Type follows |
| V | Rsp | 86 | 56 | A character for the Video channel follows |
| X | Cmd | 88 | 58 | Executive Mode On |
| x | Cmd | 120 | 78 | Executive Mode Off |
| Z | Cmd | 9Ø | 5A | Audio mute On |
| z | Cmd | 122 | 7A | Audio mute Off |
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[ | Cmd | 91 | 5B | Turn the Display power On | |
] | Cmd | 93 | 5D | Turn the Display power Off | |
Extron • System 4xi Switcher Series • User’s Manual |
