Biostar G31-M4 Setup Manual page 17

JCOM1: Serial Port Connector
The motherboard has a Serial Port Connector for connecting RS-232 Port.
JPRNT1: Printer Port Connector
This header allows you to connector printer on the PC.
Pin Assignment
1 -Strobe
2 -ALF
3 Data 0
4 -Error
5 Data 1
6 -Init
7 Data 2
8 -Scltin
9 Data 3
10 Ground
11 Data 4
12 Ground
13 Data 5
Pin Assignment
1 Carrier detect
2 Received data
3 Transmitted data
4 Data terminal ready
5 Signal ground
6 Data set ready
7 Request to send
2 10
8 Clear to send
9 Ring indicator
10 Key
1 9
2 2 6
1 2 5
Pin Assignment
14 Ground
15 Data 6
16 Ground
17 Data 7
18 Ground
19 -ACK
20 Ground
21 Busy
22 Ground
23 PE
24 Ground
25 SCLT
26 Key
G31-M4
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