Multifunctional serial to Ethernet module user manual http://en.usr.cn
Jinan USR IOT Technology Co., Ltd tec@usr.cn
Page 21 /
/
/
/ 9
The serial port is TTL level ( 3 * TTL serial port, can be directly connected to MCU ) .
number name Description
1 ETH_TX+ Ethernet TX+
2 ETH_TX- Ethernet TX-
3 ETH_RX+ Ethernet RX+
4 ETH_RX- Ethernet RX-
5 LED_DATA Ethernet Data
6 TXD0 Uart0 transmit data pin
7 RXD0 Uart0 receive data pin
8 485_en(RTS0) RS485 enable （ Uart0 require to send ）
9 Reload Restore to factory
10 RST reset
11 GND ground
12 GND ground
13 +5V +5V power
14 +5V +5V power
15 LED_LINK Ethernet link
16 +3.3V +3.3V power
17 RXD1 Uart1 receive data pin
18 TXD1 Uart1 transmit data pin
19 RXD2 Uart2 receive data pin
20 TXD2 Uart2 transmit data pin
21 CTS0 Uart0 RS232 clear to send
22 RTS1 Uart1 require to send
23 CTS1 Uart1 RS232 clear to send
Diagram 3 - 8 connector interface(include uart0, uart1, uart3)
Note:
1) Uart2 have no RTS and CTS
To Next Page
Loading...
Need help?
General
