Signal name – IBASE MB961 User Manual
Page 28
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INSTALLATIONS
24
MB961 User’s Manual
J16, J17: COM3, COM4 RS232 Serial Ports
Signal Name
Pin # Pin #
Signal Name
DCD, Data carrier detect
1
2
RXD, Receive data
TXD, Transmit data
3
4
DTR, Data terminal ready
GND, ground
5
6
DSR, Data set ready
RTS, Request to send
7
8
CTS, Clear to send
RI, Ring indicator
9
10
Not Used
J15: 24-pin ATX Power Connector
Signal Name
Pin #
Pin #
Signal Name
3.3V
13
1
3.3V
-12V
14
2
3.3V
Ground
15
3
Ground
PS-ON
16
4
+5V
Ground
17
5
Ground
Ground
18
6
+5V
Ground
19
7
Ground
-5V
20
8
Power good
+5V
21
9
5VSB
+5V
22
10
+12V
+5V
23
11
+12V
Ground
24
12
+3.3V
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