Universal PCI Board
Pin Assignments
5-6
DB25 (Female): RS-422
Pin
Signal
Pin
Signal
1
---
14
---
2
TxD1-(A)
15
RxD1-(A)
3
GND1
16
---
4
---
17
---
5
TxD1+(B)
18
RxD1+(B)
6
---
19
---
7
---
20
---
8
---
21
TxD0-(A)
9
RxD0-(A)
22
GND0
10
---
23
---
11
---
24
TxD0+(B)
12
RxD0+(B)
25
---
13
---
---
---
DB25 (Female): RS-485 (4-wire)
Pin
Signal
Pin
Signal
1
---
14
---
2
TxD1-(A)
15
RxD1-(A)
3
GND1
16
---
4
---
17
---
5
TxD1+(B)
18
RxD1+(B)
6
---
19
---
7
---
20
---
8
---
21
TxD0-(A)
9
RxD0-(A)
22
GND0
10
---
23
---
11
---
24
TxD0+(B)
12
RxD0+(B)
25
---
13
---
---
---
DB25 (Female): RS-485 (2-wire)
Pin
Signal
Pin
Signal
1
---
14
---
2
---
15
Data1-(A)
3
GND1
16
---
4
---
17
---
5
---
18
Data1+(B)
6
---
19
---
7
---
20
---
8
---
21
---
9
Data0-(A)
22
GND0
10
---
23
---
11
---
24
---
12
Data0+(B)
25
---
13
---
---
---