Using the command/response tables

The command/response tables on the next page list valid command ASCII codes, the switcher’s responses to the host, and a description of the command’s function or the results of executing the command. Except when setting audio gain/attenuation, upper and lower case characters may be used interchangeably in the command field.

ASCII to HEX Conversion Table

•

The ASCII to HEX conversion table at left is for use with the command/response tables.

ASCII to Hex conversion table

The command/response tables use symbols (defined below) to represent variables.

Symbol definitions

= CR/LF (carriage return/line feed) (hex 0D 0A)

•= Space

Esc

=

Escape key

X1

=

Specific input number (0 through 7 if no slave is

 

 

attached, 0 to 16 maximum with a slaved 10-input

 

 

switcher)

 

 

0

= no connection

 

 

1

= input 1, 2 = input 2, and so forth

X2

=

0 = off, 1 = on

X3

=

Display power status (0 through 3)

 

 

0

= display power is off

 

 

1

= display power is on

 

 

2

= display is powering down

 

 

3

= display is powering up

X4

=

Video signal type (0 through 7)

 

 

0

= RGB

 

 

1

= composite video

 

 

2

= composite video

 

 

3

= S-video

 

 

4

= S-video

 

 

5

= component video (YUV)

 

 

6

= component video (YUV)

 

 

7

= component video (YUV), progressive

X5

=

One through the maximum possible number of inputs

 

 

(1 through 7 up to 16) for the connected equipment

 

 

(7 for a stand-alone System 7, 16 if a 10-input

 

 

switcher is slaved to the System 7) See “Connecting

 

 

and Slaving a Switcher” in chapter two.

X6

=

Audio gain (0 through 18) in ½ dB steps

X7

=

Audio attenuation (1 through 30) in ½ dB steps

X8

=

Controller firmware version (listed to

 

 

two decimal places e.g.: x.xx)

X9

=

Numeric value (-15 through +9) in dB

 

=

Picture adjustment range (0 through 255)

X10

X11 = Scaler output rate

 

 

 

1

= 640x480 @ 50 Hz

17

= 1024x768 @ Lock

2

= 640x480 @ 60 Hz

18

= 1280x768 @ 56 Hz

3

= 640x480 @ 75 Hz

19

= 1280x1024 @ 50 Hz

4

= 640x480 @ Lock*

20

= 1280x1024 @ 60 Hz

5

= 800x600 @ 50 Hz

21

= 1280x1024 @ Lock

6

= 800x600 @ 60 Hz

22

= 1360x765 @ 60 Hz

7

= 800x600 @ 75 Hz

23

= 1365x1024 @ 60 Hz

8

= 800x600 @ Lock

24

= 1365x1024 @ Lock

9

= 832x624 @ 60 Hz

25

= 480p

(HDTV), 60 Hz

10

= 832x624

@ 75 Hz

26

= 480p

@ Lock

11

= 832x624

@ Lock

27

= 720p

(HDTV), 60 Hz

12

= 848x480

@ 60 Hz

28

= 720p

@ Lock

13

= 852x480

@ 60 Hz

29

= 1080p (HDTV), 60 Hz

14

= 1024x768 @ 50 Hz

30

= 1080p @ Lock

15

= 1024x768 @ 60 Hz

31

= 1080i (HDTV), 60 Hz

16

= 1024x768 @ 75 Hz

32

= 1080i @ Lock

*NOTE:

Lock is Accu-RATE Frame Lock™

X12 = Detected input signal standard (0 through 4)

0 = none

1 = NTSC 3.58

2 = PAL

3 = NTSC 4.43

4 = SECAM

–= not applicable (occurs when the input is set for RGB, YUV, or progressive YUV)

X13 = Detail level (0 through 63)

X14 = Volume adjustment range (0 through 100%)

X15 = Adjustment range (1 through 15)

X16 = Executive mode status (0 through 2)

0 = disabled (executive mode off, normal mode on)

1 = enabled, image adjustments are locked

2 = enabled, all front panel features are locked

X17 = Blanking adjustment range (0 through 127 lines)

System 7SC • Serial Communication

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Page 51
Image 51
Extron electronic System 7SC manual Using the command/response tables, Ascii to Hex conversion table, Symbol definitions