Digi TX40 User Manual page 779

Applications
Example: Configure a custom port to listen for incoming socket connections
The following example Python script configures a custom port, port 9999, to accept incoming socket
connections.
You will also need to add a custom firewall rule to accept the incoming traffic on this port.
Example script
import socket
import socketserver
class MyTCPHandler(socketserver.BaseRequestHandler):
"""
The request handler class for our server.
It is instantiated once per connection to the server, and must
override the handle() method to implement communication to the
client.
"""
def handle(self):
# self.request is the TCP socket connected to the client
self.data = self.request.recv(1024).strip()
print("{} wrote:".format(self.client_address[0]))
print(self.data)
# just send back the same data, but upper-cased
self.request.sendall(self.data.upper())
if __name__ == "__main__":
HOST, PORT ='', 9999
# Create the server, binding to localhost on port 9999
with socketserver.TCPServer((HOST, PORT), MyTCPHandler) as server:
# Activate the server; this will keep running until you
# interrupt the program with Ctrl-C
print("Waiting for data...")
server.serve_forever()
Create a custom firewall rule

Web
1. Log into Digi Remote Manager, or log into the local Web UI as a user with full Admin access
rights.
2. Access the device configuration:
Remote Manager:
a. Locate your device as described in
device.
b. Click the Device ID.
c. Click Settings.
d. Click to expand Config.
Local Web UI:
TX40 User Guide
Use Digi Remote Manager to view and manage your
Develop Python applications
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