Supermicro 2020A-8R, User Manual

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A+ Server 2020A-8R User's Manual
ATX PS/2 Keyboard and
PS/2 Mouse Ports
The ATX PS/2 keyboard and the PS/2
mouse ports are located at J101. See
the table on the right for pin defi ni-
tions.
PS/2 Keyboard and
Mouse Port Pin
Defi nitions (J101)
Pin# Defi nition
1 Data
2 NC
3 Ground
4 VCC
5 Clock
6 NC
Extra USB Headers
Three additional USB1.1 headers
(USB2/3/4) are included on the
serverboard. These may be con-
nected to provide front side access.
A USB cable (not included) is needed
for the connection. See the table on
the right for pin defi nitions.
Extra Universal Serial Bus Headers
Pin Defi nitions (USB2/3/4)
USB2
Pin # Defi nition USB3/4
Pin # Defi nition
1 +5V 1 +5V
2 PO- 2 PO-
3 PO+ 3 PO+
4 Ground 4 Ground
5 Key 5 No connection
Power LED/Speaker
On JD1, pins 1, 2, and 3 are for the
power LED and pins 4 through 7 are
for the speaker. See the tables on the
right for pin defi nitions.
Note: The speaker connector pins are
for use with an external speaker. If
you wish to use the onboard speaker,
you should close pins 6 and 7 with a
jumper.
Speaker Connector
Pin Defi nitions (JD1)
Pin# Defi nition
4 Red wire, Speaker data
5 No connection
6 Buzzer signal
7 Speaker data
PWR LED Connector
Pin Defi nitions (JD1)
Pin# Defi nition
1 +Vcc
2 -Vcc
3 -Vcc