Specifications

17 January 1997 – Subject to Change
System Configuration and Connectors 2–11
AlphaPC 164 Connector Pinouts
Table 2–8 COM1/COM2 Serial Line Connector Pinouts (J4)
COM1 Pin
(Top) COM1 Signal
COM2 Pin
(Bottom) COM2 Signal
1 DCD1 1 DCD2
2 RxD1 2 RxD2
3 TxD1 3 TxD2
4 DTR1 4 DTR2
5 SG1 5 SG2
6 DSR1 6 DSR2
7 RTS1 7 RTS2
8 CTS1 8 CTS2
9 RI1 9 RI2
Table 2–9 Keyboard/Mouse Connector Pinouts (J15)
Keyboard Pin
(Top) Keyboard Signal
Mouse Pin
(Bottom) Mouse Signal
1 KBDATA 1 MSDATA
2NC 2NC
3GND 3 GND
4 +5V 4 +5V
5 KBCLK 5 MSCLK
6NC 6NC
Table 2–10 SROM Test Data Input Connector Pinouts (J32)
Pin Signal Name
1NC —
2SROM_CLK_L Clock out
3 GND —
4NC —
5TEST_SROM_D_L SROM serial data in
6NC —