This allows you to configure the [DB-9M] RS-232 Ancillary data port on the rear of 
.
More info about ancillary data background can be found a t chapter Others/Ancillary Data Background.
Ancillary data configuration dialog:
Using , you can send ancillary (auxiliary) data wrapped inside the data stream, provided one of the following algorithms are used:
| • | MPEG-1/2 L2 |
| • | MPEG-1/2 L3 |
| • | AAC |
| • | AAC (LD) |
| • | All APT-X algorithms |
Restrictions:
| • | MPEG-1/2 L2 using the CCS Ancillary data format allows a maximum baud rate of 2,320. |
| • | MPEG-1/2 L2, AAC and AAC (LD) can use maximum of 10% of the audio bit rate for ancillary data. |
| • | MPEG-1/2 L3 can use maximum of 7 bytes per frame for ancillary data. {1 frame has the length of [144 * (bit rate)/(sample rate)] bytes.} Example: + Using MPEG L3 with a bit rate: 64 kbit/s, and a sample rate of 32 kHz + Maximum ancillary bit rate = (7*64)/(144*64/32) = 1,55 kbit/s |
- defines the baud rate of the Ancillary data port.
Note:
This setting only specifies the maximum physical value, NOT the actual amount of ancillary data sent inside the audio data stream.
The following baud rates are allowed:
| • | 1,200 |
| • | 2,400 |
| • | 4,800 |
| • | 9,600 |
| • | 19,200 |
| • | 38,400 |
| • | 57,600 |
| • | 115,200 |
Since system software version 2.0.0.96 additionally the following baud rates are selectable:
| • | 3,600 |
| • | 7,200 |
| • | 14,400 |
| • | 56,000 |
- sets the number of bits used to represent one single “character” of data.
The following are permissible values:
| • | 5 |
| • | 6 |
| • | 7 |
| • | 8 |
- sets the parity bit (used for error detection in a digital transmission path).
Definition of parity:
A technique to test the integrity of digital data by checking an extra bit that holds a 0 or 1, depending if the data is an even number of 1 bits or an odd number of 1 bits.
The following parity values are permissible:
| • | None |
| • | Even |
| • | Odd |
- sets the number of Stop bits (used to indicate the end of a byte).
The following values are permissible:
| • | 1 |
| • | 2 |
- sets the mode of ancillary (auxiliary) data handshaking.
Handshaking means that signals are transmitted back and forth to control (i.e. to start and stop) the transmission.
The following values are possible:
| • | None |
| • | Xon/Xoff |
| • | RTS/CTS |
| • | DSR/DTR |
- defines how the Encode and Decode embeds the Ancillary/Auxiliary data in the audio data stream.
Following settings are possible:
| • | Auto: It detects the ancillary format automatically, provided a MPEG format is used; this does not work with APT-X ancillary data) |
| • | CCS |
| • | J.52 |
| • | Musictaxi |
| • | Barco |
| • | None (only with APT-X algorithms) |
| • | Left (only with APT-X algorithms) |
| • | Right (only with APT-X algorithms) |
| • | TS (= transport stream; only with IP/RTP) Note: TS only available if system software >= 3.2.0.4 |