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Manual 104i-COM-8SM
16
Pin
Ch
RS-485 Functions
Ch
RS-422 Functions
Ch
RS-232 Functions
1
E
CD
2
E
DSR
3
E
TX/RX+
E
TX+
E
RX
4
E
TX/RX-
E
TX-
E
RTS
5
E
TX
6
E
RX-
E
CTS
7
E
RX+
E
DTR
8
E
RI
9
E
Ground
E
Ground
E
Ground
10
11
F
CD
12
F
DSR
13
F
TX/RX+
F
TX+
F
RX
14
F
TX/RX-
F
TX-
F
RTS
15
F
TX
16
F
RX-
F
CTS
17
F
RX+
F
DTR
18
F
RI
19
F
Ground
F
Ground
F
Ground
20
21
G
CD
22
G
DSR
23
G
TX/RX+
G
TX+
G
RX
24
G
TX/RX-
G
TX-
G
RTS
25
G
TX
26
G
RX-
G
CTS
27
G
RX+
G
DTR
28
G
RI
29
G
Ground
G
Ground
G
Ground
30
31
H
CD
32
H
HSR
33
H
TX/RX+
H
TX+
H
RX
34
H
TX/RX-
H
TX-
H
RTS
35
H
TX
36
H
RX-
H
CTS
37
H
RX+
H
HTR
38
H
RI
39
H
Ground
H
Ground
H
Ground
40
Table 6-2:
P2 Connector Pin Assignment
(8-port board only)