Euphonix FC726 Format Converter Users Manual Introduction and Interface
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1. MADI Switch
This three-position switch selects whether MADI is used for the Format A Input
and the characteristics of the MADI signal.
ON-STD: Selects the standard MADI settings used by Euphonix (sample rate =
frame rate).
OFF: Selects the common DB-50 connectors and ignores the Format A MADI
inputs. Use this setting with SDIF, TDIF, ProDigi, ADAT, or AES devices.
ON-ALT: Selects MADI running at sample rate = 96 kHz, frame rate = 48 kHz.
2. SRC ENABLE Button
This button lights when the FC726 detects different sample rates on the A and B
formats and SRC is being used. Press the button when lit to turn off SRC. The
button flashes if SRC is needed but has been disabled by the user. Press the button
again to reset the FC726’s automatic SRC detection circuitry.
When a device first locks to the FC726, the button may occasionally light to indicate
SRC is necessary when it is not. Press the button twice to reset the FC726’s auto-
matic SRC detection circuitry. SRC is not needed if the button does not light.
3. FORMAT A Input Indicator LEDs
Each eight-channel bank has seven LEDs to indicate the format attached to the
Format A Input; only one of these LEDs can be lit at a time. The LED lights dimly
yellow if an adapter is attached but the FC726 has not locked; the LED lights
bright yellow when the FC726 locks to the device.
The bottom SRC LED functions independently of the first seven. It lights red if
the FC726 has detected that SRC is required on that bank; it flashes red if SRC is
required but has been disabled by the user.
4. OUTPUT BIT DEPTH Select Switch
For each eight-channel bank, this switch sets the bit depth for the signal output to
the Format A device. When set to 24, all 24 bits are transferred from the MADI
input to the Format A output device without dithering. When set to 20 or 16, the
signal is dithered to the selected number of bits before being output to the Format
A device.
NOTE: This switch affects the Format A output only; it has no effect on the Format B
MADI audio output.
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