Pin assignment of internal ports
Audio front panel
1
2
Pin | Signal | Pin | Signal |
1 | Micro input | 2 | Analogue GND |
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3 | Micro bias | 4 | Analogue VCC |
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5 | Right line output | 6 | Right line return |
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7 | not connected | 8 | Key |
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9 | Left line output | 10 | Left line return |
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If the audio front panel is not used, you must plug jumpers on pin pairs 5/6 and 9/10.
USB - dual channel
(internal or external via special wire)
1 
2
Pin | Signal | Pin | Signal |
1 | VCC C | 2 | VCC D |
3 | Data negative C | 4 | Data negative D |
5 | Data positive C | 6 | Data positive D |
7 | GND | 8 | GND |
9 | Key | 10 | not connected |
Fan 1 (CPU) Fan 2 (AUX1)
(only for 3 pin fans)
1
Pin
1
2
3
Signal
GND
Fix Fan voltage (+12 V, max. 1 A)
Fan sense
12 - English |