Supermicro SUPERSERVER 5018A-MHN4, User Manual

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Chapter 5: Advanced Motherboard Setup
5-13
Serial Ports
Two serial ports are included on the
motherboard: COM1 is located on the
I/O backpanel and COM2 is a header
(located near the onboard buzzer) for
front access support. See the table on
the right for pin defi nitions.
Note: Pin 10 is included on the header but not on
the port. NC indicates no connection.
Serial Port Pin Defi nitions
Pin # Defi nition Pin # Defi nition
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 Ground 10 NC
Power SMB (I
2
C) Connector
Power System Management Bus (I 2 C)
Connector (JPI 2 C1) monitors power
supply, fan and system temperatures.
See the table on the right for pin
defi nitions.
PWR SMB
Pin Defi nitions
Pin# Defi nition
1 Clock
2 Data
3 PWR Fail
4 Ground
5 +3.3V
Onboard Speaker (SP1)
The onboard speaker provides au-
dible indications for various beep
codes. See the table on the right for
pin defi nitions.
Internal Buzzer
Pin Defi nition
Pin# Defi nitions
Pin 1 Pos. (+) Beep In
Pin 2 Neg. (-) Alarm
Speaker
Power LED/Speaker
On JD1 header, pins 1-3 are used
for power LED indication, and pins
4-7 are for the speaker. Connect pins
(4-7) of JD1 with a cable to use the
external speaker. If you wish to use
the onboard speaker, close pins 6-7
with a jumper (Default). See the tables
on the right for pin defi nitions.
Speaker Connector
Pin Settings
Pin Setting Defi nition
Pins 4-7 External Speaker
Pins 6-7 Internal Speaker (Default)
PWR LED Connector
Pin Defi nitions
Pin Setting Defi nition
Pin 1 Anode (+)
Pin2 Cathode (-)
Pin3 NA