Serial Port Connectors; Keyboard And Mouse Connectors; Table C-6 9-Pin Port Pinouts; Table C-7 Keyboard And Mouse Connector Pinouts - Digital Equipment AlphaStation 500 Series User Information

Serial Port Connectors

The serial port connectors consist of two 9-pin D-submini connectors. Table C-6 lists their
pin assignments.
The baud rates supported by the system's serial ports are 300, 1200, 2400, 4800, 9600,
19200, and 38400.

Table C-6 9-Pin Port Pinouts

DB9 Pin
1
2
3
4
5
6
7
8
9

Keyboard and Mouse Connectors

The keyboard and mouse connectors consist of two 6-pin mini-DIN connectors. Table C-7
lists their pin assignments.

Table C-7 Keyboard and Mouse Connector Pinouts

Pin
1
2
3
4
5
6
Signal Function
DCD Data carrier detect
RXD Receive data
TXD Transmit data
DTR Data terminal ready
GND Ground
DSR Data set ready
RTS Request to send
CTS Clear to send
RI Ring indicator
Signal
Data
Reserved
Ground
+5V DC (fused)
Clock
Reserved
AlphaStation 500 Series User Information C-5
Technical Specifications