Hardware manual

Chapter 5 Wiring
5-10
5.3 Wiring CPU Modules
 AHCPU530-RS2  AHCPU530-EN
C
O
M
C
O
M
2
1
DB9 USB
SD Card
Ethernet
COM
USB
SD Card
Ethernet
DB9
 DB9 connector
Function
Pin
RS485 RS422 RS232
1 D+ RX+ N/C
2 N/C N/C RX
3 N/C N/C TX
4 N/C TX+ N/C
5 Ground Ground Ground
6 D- RX- N/C
7 N/C N/C N/C
8 N/C N/C N/C
9 N/C TX- N/C
12
3
45
67
89
 USB port
Pin Function
1 VBUS (4.4–5.25 V)
2 D−
3 D+
4 Ground
5 Ground