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

4-3

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