Supermicro 2027R-E1R24L User Manual page 70

Ethernet Ports
Four Ethernet ports are located on the
I/O backplane. A dedicated IPMI LAN
port is also included to provide KVM
support for IPMI 2.0. These ports ac-
cept RJ45 type cables. Please refer to
Section 5-11 for LAN LED information.
Internal Speaker
The internal speaker, located at SP1,
can be used to provide audible indica-
tions for various beep codes. See the
table on the right for pin defi nitions..
Power LED/Speaker
On the JD1 header, pins 1-3 are for
a power LED and pins 4-7 are for the
speaker. Close pins 4-7 with a jumper
to use an external speaker. If you wish
to use the onboard speaker, please
close pins 6-7. See the table on the
right for speaker pin defi nitions.
Overheat/Fan Fail LED
The JOH1 header is used to connect
an LED indicator to provide warnings
of chassis overheating and fan failure.
This LED will blink when a fan failure
occurs. Refer to the table on the right
for pin defi nitions.
Serial Ports
Two serial ports are included on the
serverboard. COM1 is a backpanel
port and COM2 is a header located
near the PCI-E slot 1. See the table
on the right for pin defi nitions.
Chapter 5: Advanced Serverboard Setup
Internal Buzzer (SP1)
Pin Defi nition
Pin#
Pin 1 Pos. (+)
Pin 2 Neg. (-)
PWR LED Connector
Pin Defi nitions
Pin Setting
Pin 1
Pin2
Pin3
Speaker Connector
Pin Setting
Pins 4-7
Pins 6-7
OH/Fan Fail LED
State
Solid
Blinking
Serial Port Pin Defi nitions
(COM1/COM2)
Pin # Defi nition
1 DCD
2 RXD
3 TXD
4 DTR
5 Ground
5-21
Defi nitions
Beep In
Alarm
Speaker
Defi nition
Anode (+)
Cathode (-)
NA
Pin Settings
Defi nition
External Speaker
Internal Speaker
Status
Message
Overheat
Fan Fail
Pin # Defi nition
6 DSR
7 RTS
8 CTS
9 RI
10 NC