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SERIAL Digital I/O Series User Manual Eagle Technology - Data Acquisition
Pin Assignments
SERIAL µDAQ RS232 – DB9 (M)
The table below shows the RS232 pin assignments for the DB9(M) connector.
Pin Name Pin Name
1 NC 6 NC
2 RXD 7 NC
3 TXD 8 NC
4 NC 9 NC
5 DGND 10 DGND (shell)
Table 3-2 SERIAL µDAQ RS232 Connector – DB9 (M)
SERIAL µDAQ RS485 – DB9 (M)
The table below shows the RS485 pin assignments for the DB9(M) connector.
Pin Name Pin Name
1 NC 6 NC
2 RXA 7 TXA
3 TXB 8 RXB
4 NC 9 NC
5 DGND 10 DGND (shell)
Table 3-3 SERIAL µDAQ RS485 Connector – DB9 (M)
SERIAL µDAQ DIO A/C – DB25 (M)
The table below shows the pin assignments for the DB25(M) digital I/O connectors found on
the SERIAL µDAQ DIO A and C.
Pin Name Pin Name
1 PA0 14 PA1
2 PA2 15 PA3
3 PA4 16 PA5
4 PA6 17 PA7
5 PB0 18 PB1
6 PB2 19 PB3
7 PB4 20 PB5
8 PB6 21 PB7
9 PC0 22 PC1
10 PC2 23 PC3
11 PC4 24 PC5
12 PC6 25 PC7
13 DGND
Table 3-4 SERIAL µDAQ DIO Connector – DB25 (M)
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