User guide

A
RF45-PRO
User Guide
Ref. 11-06-V0-ffr
p 43
Network Communication mode
A serial tunneling communication is a communication between two serial
devices connected over an IP-based network.
Two ARF45-PRO modem devices can be used to create a “serial tunnel” over
an IP network (it does not matter whether the connection is a point to point
connection, in the case of ad-hoc network, or a connection via an AP, in case
of infrastructure network). This can be thought of as cable replacement.
The ARF45-PRO supports two tunneling connections simultaneously on its
serial port. One of these connections is Connect Mode and the other
connection is Accept Mode.
When any character comes in through the serial port, it gets copied to both
the Connect Mode connection and the Accept Mode connection (if both are
active). See the figures on the next pages.
Connect mode
In this mode, the ARF45-PRO actively makes a connection. In other words,
the ARF45-PRO behaves like an IP client. The receiving node on the network
must listen for the Connect Mode’s connection.
Note
: Connect Mode is disabled by default!
For Connect Mode to function, it must be enabled, have a remote station
(node) configured, and a remote port configured (TCP or UDP).
Enter the remote station as an IP address or DNS name. The ARF45-PRO will
not make a connection unless it can resolve the address.