13
PlatiniX 2E/333
Chapter 2
Audio Connectors (CD_IN 1, CD_IN 2(optional),MODEM_IN)
(Available on -A/-6A/-AL/-6AL mainboard)
CD_IN 1,and CD_IN 2 are Sony standard CD audio connectors, they both can be connected to a
CD-ROM drive through a CD audio cable. The MODEM connector allows the onboard audio to
interface with a voice modem card with a similar connector. It allows connecting the mono_in
(such as a phone) or mono_out (such as a speaker) between the onboard audio and the voice
modem card.
4-pin SMBus Connector(SMBUS)
This connector allows you to connect SMBus devices. SMBus devices communicate through the
SMBus with a SMBus host and/or other SMBus devices. The SMBus or System Management Bus
is a specific implementation of I
2
C bus, which is a multi-master bus, that is, multiple devices can
be connected to the same bus and each one can act as a master by initiating data transfer.
CD_IN 1
CD_IN 2
MODEM_IN
SMBUS
SMBDA
TA
SMBCLK
5VSB
GND
Phone-In (from Modem)
GND
Mono-Out (to Modem)
CD Right Channel
Common
CD Left Channel
CD Right Channel
Common
CD Left Channel