Connectors and Jumpers
1230B0026301
3-11
3
3
.
.
9
9
K
K
e
e
y
y
b
b
o
o
a
a
r
r
d
d
a
a
n
n
d
d
M
M
o
o
u
u
s
s
e
e
P
P
o
o
r
r
t
t
s
s
(
(
J
J
6
6
,
,
J
J
1
1
5
5
)
)
PS/2 keyboard and mouse ports are located on the back panel. The +5 V lines to these ports are protected
with a PolySwitch* circuit that, like a self-healing fuse, reestablishes the connection after an overcurrent
condition is removed.
The PS/2 keyboard port and the pin definitions are shown below:
Figure 3-10 Keyboard Port
Table 3-10 Keyboard Port Pin Definition
Pin
Signal Name
1 Keyboard
Data
2 NC
3 Ground
4 +5V
5 Keyboard
Clock
6 NC
