User Manual

Front Panel 12Apollo x16 Hardware Manual
(5) CLOCK Indicators
The clock source and status are displayed with these indicators. Either internal (INT) or
external (EXT) is displayed. The clock source is set within the Console application; see
the Apollo Software Manual for details.
Internal Clock
When set to internal clock, the INT indicator is illuminated white.
External Clock
Apollo x16 can use an external digital clock source from the Word Clock or AES/EBU
inputs. The EXT indicator has two possible states:
White – When set to external clock and a valid clock signal is detected at the
specified port, the EXT indicator is illuminated white and Apollo x16 is synchronized
to the external clock source.
Red – When set to external clock and a valid clock signal is NOT detected at the
specified port, the EXT indicator is illuminated red and the internal clock remains
active instead. In this situation, if/when the specified external clock becomes
available, Apollo x16 switches back to the external clock, and the EXT indicator is
illuminated and white.
Important: When set to use any external clock source, Apollo x16’s sample rate
must be manually set to match the sample rate of the external clock.
(6) METER Indicators
These indicators show the current state of the Channel Level Meters (#3). The current
state is changed with the METER switch (#9).
IN – When IN is illuminated, the channel meters display analog input signal levels.
OUT – When OUT is illuminated, the channel meters display analog output signals
levels.
(7) Sample Rate Indicators
These indicators display the current sample rate setting for A/D and D/A conversion.
The sample rate is set within the Console application or the host DAW; see the Apollo
Software Manual for details.