Lantronix 1-T2 User Manual

Incoming Connections

Using the MSS

The MSS supports TCP/IP socket connections to ports 2001 and 3001. 
Opening a TCP session to port 3001 will form a raw TCP/IP connection to the 
serial port. Port 2001 can be used when Telnet IAC interpretation is needed. 

To specify a connection to a socket, use the Telnet command followed by the 
MSS IP address (or resolvable name) and the desired socket number.

TCP/IP Socket Connection

The MSS supports SPX socket connections to port 9001. To make a socket 
connection, use the SPX command followed by the SAP name of the MSS.

SPX Socket Connection

Most VMS applications require the creation of a LAT application port to 
access the MSS serial port. Programs can use the LAT application port as they 
would use a physical port for input and output. For example, an application 
might be conÞgured to use port LTA3419 which would allow it to access a 
device connected to the MSS serial port.

To conÞgure LAT on your VMS host, create a new and unique application 
port using the hostÕs LATCP program (in Figure 5-3, LTAnnnn represents any 
unused LAT port number). Map the application port to the MSS by specifying 
the MSS node name and the serial port name. Enter the following commands 
at the VMS prompt:

Creating a LAT Application Port

% TELNET mymss:2001

Local> SPX MSS_xxxxxx_S1

$ RUN SYS$SYSTEM:LATCP

LCP> CREATE PORT LTA

nnnn/APPLICATION

LCP> SET PORT LTA

nnnn/node=mssname/port=port_1

LCP> SHOW PORT LTA

nnnn

LCP> EXIT