Universal PCI Board
Pin Assignments
5-11
CP-118U-I
This board supports RS-232, RS-422, and RS-485 (both 2 and 4-wire).
Model
Board Connector
Supported Accessories
Serial Connectors
CP-118U-I
DB78 (female)
CBL-M78M9x8-100
8×DB9 (male)
CBL-M78M25x8-100
8×DB25 (male)
DB78 (Female): RS-232
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