Kramer Electronics VP-4x4K User Manual
Page 59
VP-4x4K - Kramer Protocol
55
NOTE 16 - The reply to the “REQUEST WHETHER PANEL IS LOCKED” is as in NOTE 4 above, except that here the
OUTPUT is assigned with the value 0 if the panel is unlocked, or 1 if it is locked.
NOTE 19 – After this instruction is sent, the unit will respond to the ASCII command set defined by the OUTPUT byte.
The ASCII command to operate with the HEX command set must be sent in order to return to working with HEX codes.
NOTE 24 – Further information needed in instructions 22 and 25, is sent using instruction 42 – which is sent prior to the
instruction. For example, to request the audio gain value of output # 9, send hex codes
2A
81
80
81
and then send HEX codes
19
89
81
81.
To set input gain change mode, send hex codes
2A 80 80 81
and then send HEX code
16
NOTE 25 – For units which detect the validity of the video inputs, Instruction 16 will be sent whenever the unit detects a
change in the state of an input (in real-time).
For example, if input 3 is detected as invalid, the unit will send the HEX codes
10
83
84
81
If input 7 is detected as valid, then the unit will send HEX codes
10
87
85
81