IBM M841LR, Руководство пользователя

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Mainboard User’s Manual
Internal Sound Connections
If you have installed a CD-ROM drive or DVD-ROM drive, you
can connect the drive audio cable to the onboard sound system.
On the mainboard, locate the two 4-pin connectors
CD_IN1 and
CD_IN2 . There are two kinds of connectors because different
brands of CD-ROM drives have different kinds of audio cable
connectors. Connect the cable to the appropriate connector.
Infrared Port
You can connect an infrared port to the mainboard. You can
purchase this option from third-party vendors.
1. Locate the infrared port
IR1 header on the mainboard.
2. If you are adding an infrared port, connect the ribbon cable
from the port to the IR1 header and then secure the port to an
appropriate place in your system chassis.
16
CD_IN1
1
IR1
NC
+5V 3
IRTX 5
2 Key
4 GND
6 IRRX
CD_IN2