Solvline Eddy DK Ver 2.20 - Manual (Page 12)

Chapter 2. Getting Started
(Eddy-DK-C mode is to provide RS422/485 testability to Eddy-CPU module. Eddy-CPU module within its logic
supports only RS232. In order to test Eddy-CPU on RS422/485 mode, mount Eddy-CPU to development board and set
Product Setting Switch to Eddy-DK-C.)
2.3.2.3. COM1 Select Switch
If you set Product Setting Switch to Eddy-DK-C model, you can use COM PORT 1 for RS232 and RS422/RS485.
Set Product Setting Switch to Eddy-DK-C, connect this jumper, and select RS422 or RS485 in web environment
setting. However you have to be careful because it will operate in RS232 regardless of the web environment setting
if the jumper is not connected.
This jumper allows you to use RS422/RS485 when the Product Setting Switch is set as Eddy-DK-C; if you set the
switch to other models do not connect this jumper.
2.3.3 Power and Communication Port
Power Jack
Debug Port
LAN Port
COM2 Port
COM1 Port
2.3.3.1. LAN Port
Lan Port automatically recognizes Cross/ Direct.(auto MDIX)
Pin Signal Description
1 TXD+ Transmit Data +
2 TXD- Transmit Data -
3 RXD+ Receive Data +
2-4