2: Evaluation Kit
PremierWave® 2050 Enterprise Wi-Fi® IoT Module Evaluation Kit User Guide
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Table 2-3 RS-422 4-Wire Signals on J6 and J7 Serial Ports
PremierWave 2050 Evaluation Board PIN
FUNCTION
SERIAL PORTS
DB9
Pin #
TX- (Data Out)
3
RX+ (Data In)
2
TX+ (Data Out)
7
RX- (Data In)
8
GND (Ground)
5
Table 2-4 RS-485 2-Wire Signals on J6 and J7 Serial Ports
PremierWave 2050 Evaluation Board PIN
FUNCTION
SERIAL PORTS
DB9
Pin #
TX-/RX- (Data IO)
3
TX+/RX+ (Data IO)
7
GND (Ground)
5
The J6 and J7 DB9 ports are configured for RS232, RS422 (4-wire), or RS485 (2-wire) by
jumper settings on JP10, JP11, JP13, and JP14. The table below lists the correct jumper
installation for each mode.
Table 2-5 JP10, JP11, JP13 and JP14 Jumper Settings for Serial Ports
Serial Port 1 Mode (J6)
JP10
JP11
Serial Port 2 Mode (J7)
JP13
JP14
RS232 (Default)
OUT
OUT
RS485 2-wire
IN
IN
RS422 4-wire
IN
OUT
All of the PremierWave 2050 serial port signals can be used as configurable pins. Jumper
headers JP9 and JP12 have been included to allow for each of the serial port signals to be
connected or disconnected from the serial port transceiver. The tables below list the JP9 and
JP12 serial port signal connections. Install jumper or remove as needed for desired function.
