ProntoNetLC User Manual
16
II.3.4.1. Inputs
The inputs are active for grounding (active low).
II.3.4.2. Outputs
The outputs are “open collector”. They allow an output of 5VDC on one pin to
facilitate interconnection with the outputs. Each output supports up to a
maximum of 40VDC / 40 mA and will require a pull-up resistor to function with
other logic inputs. An appropriate value is 2.2 Kohms.
II.3.5 Audio interfaces
II.3.5.1. Analog audio I/O
The analog audio I/O is connected through the XLR connections on the rear
panel. The wiring conforms to the following scheme:
Pin Función
1 Ground
2 Audio+
3 Audio-
These inputs and outputs are electronically balanced with a maximum
level of +22 dBu
2
.
II.3.5.2. AES/EBU Interface
An AES/EBU interface is available via the Sub-D 9 ways pin connector on the rear
panel of the unit. This connector provides the option to connect an externally
synchronised signal. The user can select via software if the digital output is to
synchronise with the audio input or with an external sync signal. The connector
is wired in the following way:
Pin Function Pin Function
1 AES/EBU IN - 6 AES/EBU IN +
2 GND 7 SYNC +
3 SYNC - 8 GND
4 GND 9 AES/EBU OUT +
5 AES/EBU OUT -
2
This is the default factory configuration. The maximum level on the inputs/outputs can be
configured to +4, +18 or +22dBu by setting some jumpers on the audio boards. Contact
support@prodys.net for more information.
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