Appendix D: Cable Connection Diagrams
68 Siemens Energy & Automation, Inc.
Koyo 205 (PLC Direct)
Koyo 305 (PLC Direct)
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
DTU 3005B
Koyo 205
2 TXD
3 RXD
7 Ground
1 Ground
3 RXD
4 TXD
DB-25 Male
RJ11
Cable Type: Round Phone Cable
2-Wire RS422 or RS485 Communications: No
65 432 1
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
DTU 3005B
Koyo 305
2 TXD
3 RXD
7 Ground
1 RXD
2 TXD
4 Ground
DB-25 Male
RJ04
Cable Type: Round Phone Cable
2-Wire RS422 or RS485 Communications: No
4321
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