Advantech PPC-100 Manual page 34

I/O Connector A (CN4)
Pin Function
1 NC
3 GND
5 Mouse clock
7 Mouse data
9 VCC for MS & KB 10
11 COM1 RTS
13 COM1 RX
15 COM1 DSR
17 COM1 RLSD
19 COM2 RTS
21 COM2 RX/Tx+
23 COM2 DSR
25 COM2 RLSD/Tx- 26
27 COM3 RI
29 COM3 TX
31 COM3 DTR
33 COM3 RTS
35 COM4 RI
37 COM4 TX
39 COM4 DTR
41 COM4 RTS
43 GND
45 DO3
47 DO1
49 DI3
51 DI1
53 NC
Peripheral Power Input (CN5)
Pin Function
1 -12V
3 GND
* Active low
53 51 49
54 52 50
Pin Function
2 NC
4 GND
6 KB clock
8 KB data
GND for MS & KB
12 COM1 RI
14 COM1 DTR
16 COM1 CTS
18 COM1 TX
20 COM2 RI
22 COM2 DTR/RX-
24 COM2 CTS
COM2 TX/Rx+
28 COM3 DSR
30 COM3 RX
32 COM3 RLSD
34 COM3 CTS
36 COM4 DSR
38 COM4 RX
40 COM4 RLSD
42 COM4 CTS
44 GND
46 DO2
48 DO0
50 DI2
53 DI0
54 NC
Pin Function
2 GND
4 -5V
Chapter 3 The Engine of PPC-100 (PCM-4865) 29
.... 5 3 1
... 6 4 2
4 3 2 1