Oracle Vacuum Cleaner CPU-56T User Manual

S Keyboard/Mouse
S Ethernet
S SCSI

Two serial RS−232 interfaces A and B are available via two Mini D−Sub 9 connectors.
Their pinouts are given below.

a

1

6

5

9

SERA_DCD

SERA_RXD

SERA_TXD

SERA_DTR

GND

1

2

3

4

5

SERA_DSR

SERA_RTS

SERA_RI

SERA_CTS

6

7

8

9

Figure 5:

 Serial A Connector Pinout

1

6

5

9

SERB_DCD

SERB_RXD

SERB_TXD

SERB_DTR

GND

1

2

3

4

5

SERB_DSR

SERB_RTS

SERB_CTS

SERB_RI/5V

6

7

8

9

Figure 6:

 Serial B Connector Pinout

The signal provided by pin 9 of serial interface B depends on the value of the OpenBoot
variable tty−rs422−enable?. If it is set to true, pin 9 holds 5V and serves as power feed for
the ACC/CABLE/RS−422 cable connected to this interface. If the OpenBoot variable
tty−rs422−enable? is set to false, pin 9 holds the signal SERB_RI and the serial interface B
is a standard RS−232 interface.

a

A SUN−type keyboard/mouse can be connected via an 8−pin Mini DIN connector. Its
pinout is given below.

a

1

2

3

4

5

6

7

8

GND

+5V DC

Keyboard Out

Mouse Out

GND

Mouse In

Keyboard In

Sense (+5V DC)

Figure 7:

 SUN−Type Keyboard/Mouse Connector Pinout

a

 If you use an PS/2 splitter adapter cable, two PS/2 interfaces are available. One PS/2

interface can be used for connecting a keyboard, the second for connecting a mouse. Their
respective pinouts are given below.

a

1

2

3

4

6

5

Keyboard Data

GND

Keyboard Clock

n.c.

Vcc

n.c.

Figure 8:

 PS/2 Keyboard Connector Pinout