INSTALLATIONS
MB930-R User’s Manual
17
DIMM1, 2: Channel A DDR2 Socket
DIMM1, 2 are the first-channel DDR2 sockets.
DIMM3, 4 Channel B DDR2 Socket
DIMM3, 4 are the second-channel DDR2 sockets.
CN1: PS/2 Keyboard and PS/2 Mouse Connectors
Keyboard
Signal
Pin #
Mouse
Signal
Keyboard data
1
Mouse data
N.C. 2
N.C.
GND 3
GND
5V 4
5V
Keyboard clock
5
Mouse clock
Mouse (top)
Keyboard (bottom)
N.C. 6
N.C.
CN2: Serial Ports(COM1)
CN2 (COM1) is a DB-9 connector, while J2, J8 and J10 are COM
pin-header connectors.
COM1 (DB-9)
Signal Name
Pin #
Pin #
Signal Name
DCD, Data carrier detect
1
6
DSR, Data set ready
RXD, Receive data
2
7
RTS, Request to send
TXD, Transmit data
3
8
CTS, Clear to send
DTR, Data terminal ready
4
9
RI, Ring indicator
GND, ground
5
10
Not Used