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COM: Serial Port Connector
The motherboard has a serial port header for connecting RS-232 Port.
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
8
Clear to send
9
Ring indicator
10
Key
PRINT: Printer Port Connector
This header allows you to connector printer on the PC.
Pin
Assignment
Pin Assignment
1
-Strobe
14
Ground
2
-ALF
15
Data 6
3
Data 0
16
Ground
4
-Error
17
Data 7
5
Data 1
18
Ground
6
-Init
19
-ACK
7
Data 2
20
Ground
8
-Scltin
21
Busy
9
Data 3
22
Ground
10
Ground
23
PE
11
Data 4
24
Ground
12
Ground
25
SCLT
13
Data 5
26
Key
14 | Chapter 2: Hardware installation