Srom Test Data Input Connector Pinouts; Input Power Connector Pinouts; Enclosure Fan Power Connector Pinouts; Srom Test Data Input Connector Pinouts (J29) - DEC AlphaPC 164LX Technical Reference Manual

2.7.9 SROM Test Data Input Connector Pinouts

Table 2–10 shows the SROM test data input connector pinouts.
Table 2–10 SROM Test Data Input Connector Pinouts (J29)
Pin Signal
1 NC
2 SROM_CLK_L
3 Gnd
4 NC
5 TEST_SROM_D_L SROM serial data in
6 NC

2.7.10 Input Power Connector Pinouts

Table 2–11 shows the input power connector pinouts.
Table 2–11 Input Power Connector Pinouts (J3)
Pin Voltage
1 +3.3 V dc
5 Gnd
9 5 V SB
13 Gnd
17 Gnd
1
This pinout is ATX-compliant.

2.7.11 Enclosure Fan Power Connector Pinouts

Table 2–12 shows the enclosure fan power connector pinouts.
Table 2–12 Enclosure Fan (+12 V dc) Power Connector Pinouts (J2, J19)
Pin Voltage
1 Gnd
2 +12 V dc
3 Gnd
22 January 1998 – Subject To Change
AlphaPC 164LX Connector Pinouts
Name
—
Clock out
—
—
—
Pin Voltage Pin
2 +3.3 V dc 3
6 +5 V dc 7
10 +12 V dc 11
14 PS_ON 15
18 –5 V dc 19
System Configuration and Connectors
1
Voltage Pin
Gnd 4
Gnd 8
+3.3 V dc 12
Gnd 16
+5 V dc 20
Voltage
+5 V dc
P_DCOK
–12 V dc
Gnd
+5 V dc
2–13