Table B-3. Parallel Connector Pin Assignments
Pin
Signal I/O Definition
1
STB#
I/O Strobe
2
PD0
I/O Printer data bit 0
3
PD1
I/O Printer data bit 1
4
PD2
I/O Printer data bit 2
5
PD3
I/O Printer data bit 3
6
PD4
I/O Printer data bit 4
7
PD5
I/O Printer data bit 5
8
PD6
I/O Printer data bit 6
9
PD7
I/O Printer data bit 7
10
ACK#
I
Acknowledge
11
BUSY
I
Busy
12
PE
I
Paper end
13
SLCT
I
Select
14
AFD#
O
Automatic feed
15
ERR#
I
Error
16
INIT#
O
Initialize printer
17
SLIN# O
Select in
18–25 GND
N/A Ground
PS/2-Compatible Keyboard and Mouse Connectors
The PS/2-compatible keyboard and mouse cables attach to 6-pin, miniature DIN connectors.
Table B-4
defines the pin assignments for these connectors.
Figure B-4. PS/2-Compatible Keyboard and Mouse Connector Pin Numbers
Table B-4. Keyboard and Mouse Connector Pin Assignments
Pin
Signal
I/O Definition
1
KBDATA or MFDATA I/O Keyboard data or mouse data
2
NC
N/A No connection
3
GND
N/A Signal ground
N/A Fused supply voltage
4
FVcc
5
KBCLK or MFCLK
I/O Keyboard clock or mouse clock
6
NC
N/A No connection
Shell N/A
N/A Chassis ground
Video Connector
Figure B-4
illustrates the pin numbers for these connectors and