AlphaPC 164 Connector Pinouts
17
Table 14 Input Power Connector Pinouts (J3)
Pin
Voltage
Pin
Voltage
Pin
Voltage
Pin
Voltage
1
+3.3 V dc
2
+3.3 V dc
3
Ground
4
+5 V dc
5
Ground
6
+5 V dc
7
Ground
8
P_DCOK
9
NC
10
+12 V dc
11
+3.3 V dc
12
–12 V dc
13
Ground
14
NC
15
Ground
16
Ground
17
Ground
18
–5 V dc
19
+5 V dc
20
+5 V dc
Table 15 Enclosure Fan (+12 V dc) Power Connector Pinouts (J2, J22)
Pin
Voltage
1
Ground
2
+12 V dc
3
Ground
Table 16 Speaker Connector Pinouts (J23)
Pin
Signal
Name
1
SPKR
Speaker output
2
Gnd
—
3
Gnd
—
4
Gnd
—
Table 17 Microprocessor Fan Power Connector Pinouts (J21)
Pin
Signal
Name
1
+12V
—
2
FAN_CONN_L
Fan connected
3
Gnd
—
