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Chapter 5: Advanced Serverboard Setup
5-17
ATX PS/2 Keyboard and
PS/2 Mouse Ports
The ATX PS/2 keyboard and the
PS/2 mouse ports are located on
the I/O backplane (see Figure 2-3).
Refer to the table on the right for pin
defi nitions.
PS/2 Keyboard and
Mouse Port
Pin Defi nitions
Pin# Defi nition
1 Data
2NC
3 Ground
4 VCC
5 Clock
6NC
Chassis Intrusion
A Chassis Intrusion header is located
at JL1. Attach the appropriate cable
to inform you of a chassis intrusion.
Chassis Intrusion
Pin Defi nitions (JL1)
Pin# Defi nition
1 Battery voltage
2 Intrusion signal
Overheat LED
Connect an LED to the JOH1 header
to provide warning of chassis over-
heating. See the table on the right for
pin defi nitions.
Overheat LED
Pin Defi nitions (JOH1)
Pin# Defi nition
13.3V
2 OH Active
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, +5V
5 No connection
6 Buzzer signal
7 Speaker data
PWR LED Connector
Pin Defi nitions (JD1)
Pin# Defi nition
1 +Vcc
2 Control
3 Control