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MMX 32 VGA MTP • Remote Control 13
Simple Instruction Set Control
Host-to-switcher instructions
The switcher accepts SIS commands through the remote connector. SIS commands consist
of one or more characters per command field. They do not require any special characters to
begin or end the command character sequence. Each switcher response to an SIS command
ends with a carriage return and a line feed (CR/LF = ), which signals the end of the
response character string. A string is one or more characters.
Switcher-initiated message
The following copyright message is initiated by the switcher when it is first powered on.
Vx.xx is the latest firmware version number.
(c) COPYRIGHT 2005, EXTRON ELECTRONICS
“MMX 32 VGA MTP”, Vx.xx
Switcher error responses
When the switcher receives an SIS command and determines that it is valid, it performs the
command and sends a response to the host device. If the switcher is unable to perform
the command because the command is invalid or contains invalid parameters, the switcher
returns an error response to the host. The error response codes are:
E01 — Invalid input channel number (out of range)
E10 — Invalid command
E12 — Invalid output number (out of range)
E13 — Invalid value (out of range)
Using the command/response table
The SIS command/response table begins on the next page. Lower case letters are acceptable
in the command field only where indicated(B/b, for example). Symbols are used throughout
the table to represent variables in the command/response fields. Symbol definitions and an
ASCII-to-hexadecimal (HEX) conversion table are provided below. Command and response
examples are shown throughout the tables.
ASCII to HEX Conversion Table Esc 1B CR ØD LF ØA
2Ø ! 21 “ 22 # 23 $ 24 % 25 & 26 ‘ 27
( 28 ) 29 * 2A + 2B , 2C - 2D . 2E / 2F
3Ø 30 1 31 2 32 3 33 4 34 5 35 6 36 7 37
8 38 9 39 : 3A ; 3B < 3C = 3D > 3E ? 3F
@ 40 A 41 B 42 C 43 D 44 E 45 F 46 G 47
H 48 I 49 J 4A K 4B L 4C M 4D N 4E O 4F
P 5Ø Q 51 R 52 S 53 T 54 U 55 V 56 W 57
X 58 Y 59 Z 5A [ 5B \ 5C ] 5D ^ 5E - 5F
` 6Ø a 61 b 62 c 63 d 64 e 65 f 66 g 67
h 68 i 69 j 6A k 6B l 6C m 6D n 6E o 6F
p 7Ø q 71 r 72 s 73 t 74 u 75 v 76 w 77
x 78 y 79 z 7A { 7B l 7C } 7D ~ 7E D
EL 7F