User guide
Chapter 3 – Using the Web Management Software 
50  Multi-Tech Systems, Inc. MultiModem rCell User Guide 
Serial Port > Server Settings 
This feature enables a TCP/UDP client on the Ethernet network to connect to the remote serial terminal connected to the DE9, 
RS232 port on the router. The router acts as a TCP/UDP server which allows two way traffic between the TCP/UDP client and 
the remote terminal on the serial port. 
The initial connection setup for the TCP/UDP server is as shown below. 
116B
TCP/UDP – Server Configuration 
Configures TCP/UDP Server through which the serial terminal connected to the RS-232 connector, DE9 on the back of 
the unit listens for the remote TCP/UDP client to communicate on the LAN/WAN. 
106BStatus:   Sets the client status to either Enable or Disable. The default is Disable 
107BServer Type:   Sets the client to either TCP or UDP. The default is TCP. 
Port:  Sets the server port. The default is None 
Connection Terminate By: Sets the connection terminate sequence as follows: 
Escape Sequence:   Set the escape sequence characters at which the connection should terminate. 
Inactivity timeout:  Set the inactivity timeout at which the connection should terminate. 
Others:   The other terminating sequences are: DTR-toggle or Always-On.  
    DTR-toggle: If DTR status goes low, the connection terminates. 
  Always-On:  Sets the terminate sequence as Always-on. 
108B136BSubmit Button 
Click the Submit button to save these settings. 
Router hardware 
 TCP/UDP 
Server 
Serial 
Device 
DE9 
Connector 
LAN / WAN 
TCP/UDP 
Client 
HyperTerminal / 
Minicom 










