Winmate I330EAC-201, User Manual

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Users Manual EAC BOX
17
SW1 (On Back side): COM3(J3) / COM4(J8) RS-422/485 Mode Switch
D-Sub 9P RS-232/RS-422/RS-485 (J3,J8)
Used connector: DB9 Female
Related connector: DB9 Male
Pin No. Symbol Description
1
P1 DCD/D-/TX-/RX-
2
P2 RXD/D+/TX+/RX+
3
P3 TXD/RX+/TX+
4
P4 DTR/RX-/TX-
5
GND Ground
6
P6 DSR/NC
7
P7 RTS/NC
8
P8 CTS/NC
9
P9 RI/NC
Pins definition of J3 and J8 of 3 types
1. RS-485
Pin No. Symbol Description
1
P1 D-
2
P2 D+
2. RS-422 Master
Pin No. Symbol Description
1
P1 TX-
2
P2 TX+