Lab.gruppen LUCIA 240/2M - Manual (Page 20)

15. Appendices
20
LUCIA Operation Manual rev 1.0.0
15. Appendices
15.1. Configuration for LUCIA base models
IN 1
RCA
BAL
+6 dB
1 2 GPI1 GPI2
IN 2
BAL
RCA
+6 dB
SPK 1
SPK 2
15.2. Default configuration for LUCIA M models
IN 1
RCA
BAL
+6 dB
1 2 GPI 1 GPI 2
IN 2
BAL
RCA
+6 dB
SPK 1
SPK 2
+6 dB
+6 dB
OUT 3
OUT 4
15.3. External control via GPI: Connection and components
The default function for GPI is level control, a linear potentiometer with a value between 1 k to 100 k ohm can be
used. As the GPI is internally pulled high it will default to full level if no potentiometer is connected. If the cable is
a shielded twistred pair, then the shield should be connected to ground. Alternately 3 tightly twisted leads can
be used. The potentiometer should be connected so that the wiper (the sliding contact) is at the Vcc side of the
potentiometer for maximum level and at the GND side for Mute.
R