
Universal PCI Board User’s Manual Pin Assignments
11-10
Pin Signal Pin Signal Pin Signal
1 GND7 27 DTR5 53 CTS2
2 TxD7 28 RTS4 54 DSR2
3 --- 29 DTR4 55 CTS1
4 GND6 30 --- 56 DSR1
5 TxD6 31 RTS3 57 ---
6 GND5 32 DTR3 58 CTS0
7 TxD5 33 RTS2 59 DSR0
8 --- 34 DTR2 60 DCD7
9 GND4 35 --- 61 RxD7
10 TxD4 36 RTS1 62 DCD6
11 GND3 37 DTR1 63 RxD6
12 TxD3 38 RTS0 64 ---
13 --- 39 DTR0 65 DCD5
14 GND2 40 CTS7 66 RxD5
15 TxD2 41 DSR7 67 DCD4
16 GND1 42 --- 68 RxD4
17 TxD1 43 CTS6 69 ---
18 --- 44 DSR6 70 DCD3
19 GND0 45 CTS5 71 RxD3
20 TxD0 46 DSR5 72 DCD2
21 RTS7 47 --- 73 RxD2
22 DTR7 48 CTS4 74 ---
23 RTS6 49 DSR4 75 DCD1
24 DTR6 50 CTS3 76 RxD1
25 --- 51 DSR3 77 DCD0
26 RTS5 52 --- 78 RxD0
DB78 (Female): RS-422, RS-485 (4-wire)
Pin Signal Pin Signal Pin Signal
1 GND7 27 RxD5-(A) 53 ---
2 RxD7+(B) 28 --- 54 ---
3 --- 29 RxD4-(A) 55 ---
4 GND6 30 --- 56 ---
5 RxD6+(B) 31 --- 57 ---
6 GND5 32 RxD3-(A) 58 ---
7 RxD5+(B) 33 --- 59 ---
8 --- 34 RxD2-(A) 60 TxD7-(A)
9 GND4 35 --- 61 TxD7+(B)
10 RxD4+(B) 36 --- 62 TxD6-(A)
11 GND3 37 RxD1-(A) 63 TxD6+(B)
12 RxD3+(B) 38 --- 64 ---
13 --- 39 RxD0-(A) 65 TxD5-(A)
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