Aphex 141 - Manual (Page 4)

Owner’s Manual
4
ADAT connections
ADAT connections use a standard TOSLINK optical transmitter and receiver on the Model 144, a
receiver on the Model 141 and a transmitter on the Model 142. Keep ADAT connections as short as
possible.
AES connections
AES connections use Aphex standard 15 pin D-Sub. The AES output from the Model 144 is female
and the AES input to the Model 144 is male. The connections are as follows:
Word clock
The Anaconda system is designed to work at 48kHz sampling frequency only. In order to achieve its
unmatched performance, the clock must be within +/-5Hz of 48kHz. That is why the Anaconda has its
own super stable and accurate clock generator and distribution system.
The Model 142 has a word clock input on a standard BNC with an internal 75Ω terminating resistor.
If there is no word clock connected, the clock will be approximately 48kHz, but not exactly. It is highly
recommended that a 48kHz word clock be connected to the Model 142 even if the unit is not part of
an Anaconda system.
The Model 141 needs no clock as it converts whatever is on the ADAT input to analog. It can accept
44.1kHz or 48kHz.
The Model 144 has no separate clock input. However, the same word clock (either 44.1kHz or 48kHz)
must be used for all the AES sources. Also, AES input channels 1 and 2 must be connected to the
Model 144 in order for the clock to be derived for the ADAT output.
LED Indicators
Models 141 and 142 have a single bi-color red/green LED labeled “Power/Locked”. The LED will
be red when power is supplied but without any ADAT connected to the Model 141 or word clock
connected to the Model 142. When there is a valid ADAT signal (either at 44.1kHz or 48kHz)
connection to the Model 141 the LED will turn green.
Model 141 ADAT to Analog Converter
Model 142 Analog to ADAT Converter
Model 144 AES/ADAT Bi-directional Converter
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