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6
4. Optical S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital optical
audio.
5. External SATA Port (Only for P55A-S)
To connect external SATA device(s) to your system by expanding the internal SATA port(s) to the
chassis back panel. External SATA device shall provide power by its own.
6. Audio Ports
For the denition of each audio port, please refer to the table below :
7. RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 1Gb/s data rate.
■ Make sure the power supply is turned off before pressing the CLR_CMOS2 button to
clear CMOS.
■ Push down the CLR_CMOS2 button and hold it there for a couple of seconds to clear
the CMOS completely, then release.
CA
U
T
I
O
N
!
Port 2-channel 4-channel 5.1-channel 7.1-channel
Blue Line In Line In Line In Line In
Green Line Out Front Speaker Out Front Speaker Out Front Speaker Out
Pink Microphone In Microphone In Microphone In Microphone In
Orange - - Center/Subwoofer Out Center/Subwoofer Out
Black - Rear Speaker Out Rear Speaker Out Rear Speaker Out
Grey - - - Side Speaker Out
LAN Type
Left: Active Right: Link
Status Description Status Description
1000M
Off No Link Off No Link
Green
Blinking
Data Activ-
ity
Off 10 Mb/s Connection
Green 100 Mb/s Connection
Orange 1000 Mb/s Connection
Active
LED
Link
LED
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