Lantronix Ethernet - Manual (Page 15)

Introduction
WiBox2100E User Guide 15
Serial Connector Pinouts
The two DB9M DTE serial ports provide default settings for RS-232C
communications of 9600 baud, 8 bits, no parity, and 1 stop bit (9600, 8, N, 1).
Figure 2-5. DB9M DTE Serial Connector
Alternatively, you can configure the WiBox for RS-422/485 4-wire communications
(
Figure 2-6 ) or for RS-485 2-wire communications ( Figure 2-7 ).
Figure 2-6. RS-422/485 4-Wire Pinouts