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Motherboard Description
33
1.12.8.2 COM1 Serial Port
Table 19 lists the pinout and signal names for the serial connectors.
Table 19. Serial Port Connector Pinout
Pin Signal Name Description
1 DCD Carrier Detect
2 SIN# Serial Data In
3 SOUT# Serial Data Out
4 DTR# Data Terminal Ready
5 GND Chassis Ground
6 DSR# Data Set Ready
7 RTS# Request To Send
8 CTS# Clear To Send
9 RI Ring Indicator
1.12.8.3 USB Back Panel Connectors
Table 20 lists the pinout and signal names for the USB back panel connectors.
Table 20. USB Connector Pinout
Pin Signal Name
1 +5 v (fused)
2 USBP0# [USBP1#] (fused)
3 USBP0 [USBP1] (fused)
4 Ground
1.12.8.4 Keyboard and Mouse Ports
Table 21 lists the pinout and signal names for the PS/2 keyboard and mouse connectors. Although
they are labeled as “Keyboard” and “Mouse” on the motherboard and the back panel, the
connectors can be used interchangeably for either keyboard or mouse.
Table 21. PS/2 Keyboard/Mouse Connector Pinout
Pin Signal Name / Function
1 Data
2 No connect
3 Ground
4 +5 VDC (fused)
5 Clock
6 No connect