Installation guide
1-2 
transmit/receive data functions as well as RTS, CTS, DTR, DSR, and DCD 
control signals. 
The NPort Server Lite can be used with your existing applications that support 
serial communication. A utility program is included that provides simple 
step-by-step installation instructions and a maintenance wizard that gives you 
easy access to your asynchronous devices. 
Features 
y  Auto-detecting 10/100 Mbps Ethernet 
y  RS-232 or RS-422/485 serial interface 
y  1, 2, or 4 port models 
y  LCD control panel with IP address display and configuration 
y  Built-in Ethernet and TCP/IP protocol 
y  Each port configurable for Driver, TCP Server, TCP Client, or UDP 
Server/Client operation mode 
y  Pair Connection operation available for DE-301 and DE-331 
y  Windows Real COM drivers and Linux real tty drivers 
y  Automatic network connection recovery 
y  Desktop and DIN-rail installation 
Specifications 
Hardware   
Processor  16 bit CPU 
I/O Controller: 
DE-301/331 
DE-302/332 
DE-304/334 
16C550C or compatible × 1 
16C550C or compatible × 2 
16C550C or compatible × 4 
Memory 512 KB 
Connector Type  DB9 Male 










