Asus P3C-S - Manual (Page 50)

50 ASUS P3C-L / P3C-S / P3C-LS User’s Manual
Connectors
3. H/W SETUP
3. HARDWARE SETUP
20. SMBus Connector (3-pin SMB) (optional/reserved)
This connector allows you to connect SMBus devices. SMBus devices commu-
nicate by means of the SMBus with an SMBus host and/or other SMBus de-
vices. The SMBus or System Management Bus is a specific implementation of
an I
2 C bus, which is a multi-master bus, that is, multiple chips can be connected
to the same bus and each one can act as a master by initiating data transfer.
SMBCLK Ground SMBDA
T
A
+5V
1
P3C-LS/L/S SMBus Connector
SMB
P3C-LS / L / S
P ARALLEL
PORT
OPTIONAL
4 3 2 1
21. Ultra-Fast (50-pin)/Ultra2 (68-pin) SCSI Connectors
only with SCSI models
This motherboard has an onboard 50-Pin Ultra-Fast SCSI connector for 8-bit
SCSI devices and two 68-Pin Ultra2 SCSI connectors for Low Voltage Devices
(LVD) and 32-bit Ultra-Wide SCSI devices.
P3C-LS/L/S Onboard SCSI Connectors
P3C-LS / L / S
68-Pin Wide SCSI Connector
50-Pin Ultra-Fast SCSI Connector
68-Pin Ultra160 SCSI Connector
35
1
68
34
35 68
34
1
1
IMPORTANT: Read the SCSI connection and termination information on the
next page.