PCI Express Boards Pin Assignments
CP-118E-A-I/CP-138E-A-I
Board Side Pin Assignments—Female DB78
RS-232
Pin Signal Pin Signal Pin Signal Pin Signal
2 TXD7 22 DTR7 41 DSR7 61 RXD7
3 – 23 RTS6 42 – 62 DCD6
5 TXD6 25 – 44 DSR6 64 –
6 GND5 26 RTS5 45 CTS5 65 DCD5
7 TXD5 27 DTR5 46 DSR5 66 RXD5
9 GND4 29 DTR4 48 CTS4 68 RXD4
10 TXD4 30 – 49 DSR4 69 –
11 GND3 31 RTS3 50 CTS3 70 DCD3
12 TXD3 32 DTR3 51 DSR3 71 RXD3
13 – 33 RTS2 52 – 72 DCD2
15 TXD2 35 – 54 DSR2 74 –
16 GND1 36 RTS1 55 CTS1 75 DCD1
17 TXD1 37 DTR1 56 DSR1 76 RXD1
19 GND0 39 DTR0 58 CTS0 78 RXD0
20 TXD0
59 DSR0
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