User manual

Connect Tech Xtreme/104 Plus, PCI-104 and PCI/104 Express Family User Manual
Revision 0.11
35
21.5 Xtreme/104 Plus 16 Port
Table 3: I/O Signal Assignments for 16 Port model
Port
Pin
RS-232
Direction
RS-
422/485
Direction
Port
Pin
RS-232
Direction
RS-
422/485
Direction
1 or 9
1
DCD
Input
RxD+
Input
5 or 13
41
DCD
Input
RxD+
Input
2
DSR
Input
CTS-
Input
42
DSR
Input
CTS-
Input
3
RxD
Input
RxD-
Input
43
RxD
Input
RxD-
Input
4
RTS
Output
RTS+
Output
44
RTS
Output
RTS+
Output
5
TxD
Output
TxD+
Output
45
TxD
Output
TxD+
Output
6
CTS
Input
CTS+
Input
46
CTS
Input
CTS+
Input
7
DTR
Output
TxD-
Output
47
DTR
Output
TxD-
Output
8
RI
Input
RTS-
Output
48
RI
Input
RTS-
Output
9
SG
Signal
Ground
SR
Signal
Ref
49
SG
Signal
Ground
SR
Signal
Ref
10
NC
NC
NC
NC
50
NC
NC
NC
NC
2 or 10
11
DCD
Input
RxD+
Input
6 or 14
51
DCD
Input
RxD+
Input
12
DSR
Input
CTS-
Input
52
DSR
Input
CTS-
Input
13
RxD
Input
RxD-
Input
53
RxD
Input
RxD-
Input
14
RTS
Output
RTS+
Output
54
RTS
Output
RTS+
Output
15
TxD
Output
TxD+
Output
55
TxD
Output
TxD+
Output
16
CTS
Input
CTS+
Input
56
CTS
Input
CTS+
Input
17
DTR
Output
TxD-
Output
57
DTR
Output
TxD-
Output
18
RI
Input
RTS-
Output
58
RI
Input
RTS-
Output
19
SG
Signal
Ground
SR
Signal
Ref
59
SG
Signal
Ground
SR
Signal
Ref
20
NC
NC
NC
NC
60
NC
NC
NC
NC
3 or 11
21
DCD
Input
RxD+
Input
7 or 15
61
DCD
Input
RxD+
Input
22
DSR
Input
CTS-
Input
62
DSR
Input
CTS-
Input
23
RxD
Input
RxD-
Input
63
RxD
Input
RxD-
Input
24
RTS
Output
RTS+
Output
64
RTS
Output
RTS+
Output
25
TxD
Output
TxD+
Output
65
TxD
Output
TxD+
Output
26
CTS
Input
CTS+
Input
66
CTS
Input
CTS+
Input
27
DTR
Output
TxD-
Output
67
DTR
Output
TxD-
Output
28
RI
Input
RTS-
Output
68
RI
Input
RTS-
Output
29
SG
Signal
Ground
SR
Signal
Ref
69
SG
Signal
Ground
SR
Signal
Ref
30
NC
NC
NC
NC
70
NC
NC
NC
NC
4 or 12
31
DCD
Input
RxD+
Input
8 or 16
71
DCD
Input
RxD+
Input
32
DSR
Input
CTS-
Input
72
DSR
Input
CTS-
Input
33
RxD
Input
RxD-
Input
73
RxD
Input
RxD-
Input
34
RTS
Output
RTS+
Output
74
RTS
Output
RTS+
Output
35
TxD
Output
TxD+
Output
75
TxD
Output
TxD+
Output
36
CTS
Input
CTS+
Input
76
CTS
Input
CTS+
Input
37
DTR
Output
TxD-
Output
77
DTR
Output
TxD-
Output
38
RI
Input
RTS-
Output
78
RI
Input
RTS-
Output
39
SG
Signal
Ground
SR
Signal
Ref
79
SG
Signal
Ground
SR
Signal
Ref
40
NC
NC
NC
NC
80
NC
NC
NC
NC
Note: [1] 22Ω to GND. Each Signal Ground or Signal Ref is connected to the
DC ground by a 22Ω resistor to reduce ground loop current.