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DCE / DTE Connection Description
DCE DTE DCE
DTE
DB-9 DB-9 DB-25 DB-25
1
1
(PG)
1
1
2
3
3
2
2
3
3
2
2
3
3
2
8
7
5
4
4
5
7
8
4
5
5
4
6
6
6
6
(DSR)
6
6
5
5
7
7
SG
7
7
1
1
8
8
(CD)
8
8
9
9
9
9
10
10
10
10
11
11
11
11
12
12
(SCD)
12
12
13
13
(SCS)
13
13
14
14
(STD)
14
14
15
15
(TC)
15
15
16
16
(SRD)
16
16
17
17
(RC)
17
17
18
18
18
18
19
19
(SRS)
19
19
4
4
20
20
(DTR)
20
20
21
21
(SQD)
21
21
9
9
22
22
(RI)
22
22
23
23
(DRS)
23
23
24
24
(XTC)
24
24
25
25
25
25
Tx
Rx
Rx
Tx
RTS
CTS
CTS
RTS
Cable
25/25 or
9/25 pin
IC-485AI
Device’s Connector Pin #
DCE
DTE
DB-25 DB-25
Summary of Contents for IC-485AI
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