Clock; Remote - RME Audio ADI-6432 User Manual

8.4 CLOCK

The source and frequency of the unit's clock is configured in the CLOCK SECTION. The but-
tons CLOCK let you step through the options external clock (AES, MADI, word) and internal
clock (44.1 or 48 kHz). The button STATE sets internal, but also the external sample rate to
double or quadruple of the basic sample rate.
AES, MADI, WCK (Slave Mode)
Defines the corresponding input as clock reference. A missing or invalid clock source signal is
indicated by flashing of the corresponding LED. In case of AES: the input with the lowest num-
ber receiving a valid AES signal is used as clock reference.
44.1, 48 (Master Mode)
Activates the internal clock at 44.1 kHz or 48 kHz. Using the button STATE a choice of DS giv-
es 88.2 and 96 kHz, a choice of QS gives 176.4 and 192 kHz respectively.
With a setting of 44.1 and 48 (internal clock) it is mandatory that the clock rate of the
sources is synchronous to the ADI-6432. Therefore the external device has to be synchro-
nized to the ADI-6432's word clock out or MADI/AES out.
The ADI-6432 thus has to be master, all devices connected to it slave. In order to avoid clicks
and drop outs due to faulty or missing synchronicity, a special process called SyncCheck com-
pares the incoming data and the ADI-6432's internal clock. The SYNC state is indicated by a
flashing (error) or constantly lit (OK) LED.
The button STATE is used to configure the ADI-6432, and with this all of its outputs, to the fre-
quency ranges Single Speed, Double Speed or Quad Speed.
No LED (Single Speed)
All outputs carry a signal in the range of 32 kHz up to 48 kHz.
DS (Double Speed)
AES outputs 1-16 carry a signal in the range of 64 kHz up to 96 kHz. MADI stays at no higher
than 48 kHz, with the data transmitted in the S/MUX format. In case MADI OUTPUT has been
set to 96k frame, the MADI output also uses 96 kHz.
QS (Quad Speed)
AES outputs 1-8 carry a signal in the range of 176.4 kHz up to 192 kHz. MADI stays at no
higher than 48 kHz, with the data transmitted in the S/MUX4 format. Using the 96k frame mode
with S/MUX data transmission is not supported.
Follow Clock
In this special mode the ADI-6432 follows the input clock of AES and Word automatically over
all three ranges. So at 96 kHz the DS LED automatically lights up, at 192 kHz the QS LED. A
manual configuration via the STATE button is no longer required. This function is deactivated
for the MADI input, as the sample rate range of the MADI audio data can not be detected auto-
matically.
Activation of Follow Clock: while the firmware version is shown press the CLOCK STATE but-
ton. Both LEDs DS/QS light up. Deactivation: same, both LEDs stay dark.

8.5 REMOTE

The button REMOTE is used to select the source of the MIDI remote control commands, and
also the destination for the ADI-6432's request replies. The standard MIDI ports or the MADI
input and output can be chosen.
User's Guide ADI-6432 © RME 15