SiboTech ENB-302MT, Руководство пользователя

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Pin Signal Description
S1 TXD+
，
Transmit Data+, Output
S2 TXD-
，
Transmit Data-, Output
S3 RXD+
，
Receive Data+, Input
S4 Bi-directional Data+
S5 Bi-directional Data-
S6 RXD-
，
Receive Data-, Input
S7 Bi-directional Data+
S8 Bi-directional Data-
3.4.3 RS-232/RS-485 interface
ENB-302MT support standard RS485 and RS232 interfaces.
RS232 interface:
Pin Signal Description
1 TX, connect with RX of user device
2 RX, connect with TX of user device
3 GND
RS485 interface:
Pin Signal Description
1 B+
，
RS485
2 A-
，
RS485
3 GND
The RS-485 interface of ENB-302MT is standard, and the RS-485 characteristics of the product are shown
B+
A-
GND
1
2
3
TX
RX
GND
1
2
3