ADLINK C514 - Manual (Page 22)

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• Introduction
1.6.4 Connector Pin Assignment of C485
DB37 female connector pin assignment for C485.
DB37 Pin No. Signal Name DB37 Pin No. Signal Name
1 RXDA+(IN) 20 TXDA+(OUT)
2 --- 21 ---
3 RXDA-(IN) 22 TXDA-(OUT)
4 --- 23 ---
5 GND.A 24 RXDB+(IN)
6 TXDB+(OUT) 25 ---
7 --- 26 RXDB-(IN)
8 TXDB-(OUT) 27 ---
9 GND.B 28 ---
10 --- 29 ---
11 GND.C 30 ---
12 TXDC-(OUT) 31 RXDC-(IN)
13 --- 32 ---
14 TXDC+(OUT) 33 RXDC+(IN)
15 GND.D 34 ---
16 --- 35 TXDD-(OUT)
17 RXDD-(IN) 36 ---
18 --- 37 TXDD+(OUT)
19 RXDD+(IN) --