User`s manual

Universal PCI Board Pin Assignments
5-15
DB44 (Female): RS-422
Pin Signal Pin Signal Pin Signal
1 RXD3+(B) 16 CTS3+(B) 31 TXD3-(A)
2 TXD3+(B) 17 RXD3-(A) 32 CTS3-(A)
3
RTS3+(B)
18
RTS3-(A)
33
GND3
4 --- 19 --- 34 ---
5 RXD2+(B) 20 CTS2+(B) 35 TXD2-(A)
6 TXD2+(B) 21 RXD2-(A) 36 CTS2-(A)
7 RTS2+(B) 22 RTS2-(A) 37 GND2
8 --- 23 --- 38 ---
9 RXD1+(B) 24 CTS1+(B) 39 TXD1-(A)
10 TXD1+(B) 25 RXD1-(A) 40 CTS1-(A)
11 RTS1+(B) 26 RTS1-(A) 41 GND1
12 --- 27 --- 42 TXD0-(A)
13 RXD0+(B) 28 CTS0+(B) 43 CTS0-(A)
14 TXD0+(B) 29 RXD0-(A) 44 GND0
15 RTS0+(B) 30 RTS0-(A) --- ---
DB44 (Female): RS-485 (4-wire)
Pin Signal Pin Signal Pin Signal
1 RXD3+(B) 16 --- 31 TXD3-(A)
2 TXD3+(B) 17 RXD3-(A) 32 ---
3 --- 18 --- 33 GND3
4 --- 19 --- 34 ---
5 RXD2+(B) 20 --- 35 TXD2-(A)
6 TXD2+(B) 21 RXD2-(A) 36 ---
7 --- 22 --- 37 GND2
8 --- 23 --- 38 ---
9 RXD1+(B) 24 --- 39 TXD1-(A)
10
TXD1+(B)
25
RXD1-(A)
40
---
11 --- 26 --- 41 GND1
12 --- 27 --- 42 TXD0-(A)
13 RXD0+(B) 28 --- 43 ---
14 TXD0+(B) 29 RXD0-(A) 44 GND0
15 --- 30 --- --- ---