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Chapter 2 .................................................................Hardware
2.1 Series 300 Front Panel
The Series 300 front panel provides ten-segment metering for the eight inputs and the main
outputs. The meters are fast PPM peak reading meters with auto-resetting peak holds.
2.1.1 Status Display
The front panel also provides Series 300 system status at a glance:
2.1.1.1 Sample Rate
(nominal 44.1, 48, 88.2, or 96)
Since sample rate is determined by the currently selected clock source, it will accurately indi-
cate the current sample rate, even when the clock source is provided by an external device.
2.1.1.2 Clock source
Internal indicates that the system is internally clocked
Word clock indicates that system is being clocked from the word clock input
256x WC indicates that the system is being clocked from a 256x clock at the word clock input
Digital In indicates that the system is being clocked from the selected digital input (AES or
S/PDIF)
256x WC + Digital In indicates that the system is being clocked from the ADAT optical input
2.1.1.3 Power
Indicates that the Series 300 is receiving power.
2.1.1.4 FireWire
Indicates that the Series 300 has been successfully connected to a FireWire bus and has de-
tected the isochronous cycle required to transmit and receive audio.
2.1.1.5 Locked
Indicates that the system clock recovery circuit is properly locked to the selected clock source.
If this light is not illuminated, the Series 300 will not be locked to a clock and will revert to its
fail–safe internal clock source. Even if the Locked light is not illuminated, the actual sample rate
will still be indicated on the front panel display.
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