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Command
CEC Usage Examples
Unidirectional Mode — No CEC received data messages (including answers to queries) desired
Set mode
Send data
Bidirectional Mode — CEC received data messages desired
Set mode
Send data
Examples of possible unsolicited
messages
Asynchronous received data messages from CEC in bidirectional mode (4) format: Ceci
NOTE:
Other CEC Commands
Rediscover device on output
Report physical address of output
port
KEY:
X!
= Input number
X4%
= Send result
X4^
= CEC physical address
X4(
= CEC address byte
ASCII Command
(Host to Switcher)
E
*
}
O0
2CCEC
E
*
}
O0
"PwrOn"DCEC
or
*
E
}
O0
%04DCEC
E
*
}
O0
4CCEC
*"
E
}
O0
ShowMe"DCEC
or
E
O0*15*%82%20
}
%00DCEC
E
}
O1QCEC
E
}
O1PCEC
Verbose mode 2/3
Example
1
3
to
0
= Failed (NAK) device not detected,
2
= Unable to send
4 hexadecimal digits in the form of
In the form of percent sign followed by 2 hex digits
Example: %E0 = Extron output (14) to TV (0)
Response
Additional Description
(Switcher to Host)
]
CcecO0*2
*
]
Dcec O0
%E0%04*1
]
CcecO0*4
*
]
Dcec O0
%EF%82%20%00*1
*
Ceco0
%0F%32%65%6E%67*1
TV broadcast command to set
the menu language to English
("eng").
*
]
TV pings us to confirm we are still
Ceco0
%0E*1
there.
X!
Ceco1*
1*
]
QcecO
1
*
* X4%]
QcecO1
0
...
*
* X4%]
QcecO1
13
X4^]
* X4^]
PcecO1
%10%00
1
= Success (ACK) device detected,
%
%
xx
xx (Example: %32%00)
UCS 303 • SIS Communication and Control
Power on TV on output 1.
Switch TV on output 1 to our
signal (HDMI 2 on TV).
]
X4( X4^
X4%]
*
*
X4( X4^
X4%]
*
For 1000 (usually first HDMI
input on TV).
41
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