PEB-7605 Series User’s Manual
9
2.2.5 ATX_20P Power Connector (PWR1)
2.2.6 COM1/COM2/COM3/COM4 Interface
2.2.7 DIO Interface
PIN No.
Signal Description
1 +3.3V
2 +3.3V
3 Ground
4 +5V
5 Ground
6 +5V
7 Ground
8 PW_OK
9 +5V
SB
10 +12V
11 +3.3V
12 -12V
13 Ground
14 PS
ON
15 Ground
16 Ground
17 Ground
18 -5V
19 +5V
20 +5V
PIN No.
Signal Description
1
Data Carrier Detect
2 Received
Data
3 Transmit
Data
4 Data
Terminal
Ready
5 Ground
6
Data Set Ready
7 Request
To
Send
8 Clear
To
Send
9 Ring
Indicator
10 Not
used
PIN No.
Signal Description
1 GPIO
32
2 GPIO
36
3 GPIO
33
4 GPIO
37
5 GPIO
34
6 GPIO
38
7 GND
8 GND