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RS-422/485
TX-
RX-
RTS-
CTS-
TX+
RTS+
RX+
CTS+
GND
The RTS output is only available in RS-232 and RS-422 modes. The RTS output is tri-
stated in RS-485 mode and therefore unusable. The CTS input is available in all modes
©Sealevel Systems, Inc.
SL9219 – 04/2013
Port #
1
RS-232
TD
36
RD
37
RTS
17
CTS
16
DTR
35
DSR
18
DCD
38
RI
15
GND
34
7804e Manual
2
3
4
5
6
12
27
3
75
51
11
28
2
76
50
31
8
22
56
70
32
7
23
55
71
13
26
4
74
52
30
9
21
57
69
10
29
1
77
49
33
6
24
54
72
14
25
5
73
53
7
8
66
42
67
41
47
61
46
62
65
43
48
60
68
40
45
63
64
44
16
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