Asus B85-PRO - Manual (Page 27)

ASUS B85-PRO / B85-PLUS 1-19
1.8 Onboard LEDs
1. Standby Power LED
The motherboard comes with a standby power LED that lights up to indicate that the
system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should
shut down the system and unplug the power cable before removing or plugging in any
motherboard component. The illustration below shows the location of the onboard LED.
SB_PWR
ON
Standby Power Powered Off
OFF
B85-PLUS
B85-PLUS Onboard LED
10. Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
The COM module is purchased separately.
B85-PLUS
B85-PLUS Serial port (COM) connector
PIN 1
COM
DC
D
DX
T
DN
G
ST
R
IR
DX
R
RT
D
RS
D
ST
C