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COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x1F
Data1 0x00 – Deactivate mute line
0x01 – Activate mute line
Dl 0x01
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x1F
Ac Answer code
Dl Data length <n>
Data1 Relay state
Et 0x0D
Activate/deactivate the mute lines (0x1F)
Activate/deactivate the mute lines on the designated zone.
Example
Command/response sequence to activate the mute relays:
Command: 0x21 0x01 0x1F 0x01 0x0D
Response: 0x21 0x01 0x1F 0x00 0x01 0x0D
Report Amplifer temperature status (0x27)
Report the temperature status of the various zones ampliers.
Example
Command/response sequence to request the temperature of zone 1 where
temperature is too high:
Command: 0x21 0x01 0x27 0x01 0xF0 0x0D
Response: 0x21 0x01 0x27 0x00 0x01 0x01 0x0D
Note: As each amplier powers a pair of zones (1&2, 3&4 , 5&6) the
temperature status of zones 1 and 2 is the same value.
COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x27
Dl 0x01
Data 0xF0 – Request temperature status
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x27
Ac Answer code
Dl 0x01
P2 0x00 – Temperature OK
0x01 – Over temperature
Et 0x0D