Headphones (0X02); Software Version (0X04) - Arcam SA20 Custom Installation Notes

Headphones (0x02)

Determine whether headphones are connected.
Example
Command/response sequence to request the headphone status where the
headphones are not connected:
Command: 0x21 0x01 0x02 0x01 0xF0 0x0D
Response: 0x21 0x01 0x02 0x00 0x01 0x00 0x0D

Software version (0x04)

Request the firmware version
Example
Command/response sequence, where the repsonse is HOST version 1.2:
Command: 0x21 0x01 0x04 0x01 0xF0 0x0D
Response: 0x21 0x01 0x04 0x00 0x02 0x01 0x02 0x0D
6
COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x02
Dl 0x01
Data 0xF0 – Request current headphone connection status
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x02
Ac Answer code
Dl 0x01 (Data length)
Data 0x00 – Headphones are not connected.
0x01 – Headphones are connected
Et 0x0D
COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x04
Dl 0x01
Data 0xF0 – request software version
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x04
Ac Answer code
Dl 0x02
Data1 0x?? – major version number
Data2 0x?? – minor version number
Et 0x0D