User Manual

Rev: 29 April 2005
4 Hints and tips
4.1 Establishing a connection between two Serial port plugs.
In order to use two F2M01 plugs as a serial link (replacing a serial cable), they must have a connection
between each other. To ensure operating success, one device must be in connecting mode – Bluetooth
master and the other device in endpoint mode – Bluetooth slave. The connecting unit issues a connection
request and the endpoint unit accepts the connection request based on a connection rule. This implies that
both units cannot be in connecting or endpoint settings mode simultaneously.
There are many different configuration options existing that will allow for the desired functionality. In this
section two different options will be described, one is an easy to configure option whilst the other option is
more secure. The secure option involves a complete Bluetooth pairing procedure, allowing encryption etc.
In this section the overall procedure is described. To get detailed information about each step please read
the corresponding section of this user manual.
Also note that you may have to configure the serial port settings and the general settings in order to suit
your needs.
4.1.1 “Non secure” connection
The easiest way to configure two Serial Port Plugs is probably to establish a connection without
authentication. This option will not require two versions of the Free2move Configuration Software running
simultaneously, i.e. only one serial port and one computer is needed.
By using the following configuration steps no other ordinary Bluetooth units will have the possibility to
communicate with the two Serial Port Plugs. However it will be possible for one with in-depth Bluetooth
knowledge to eavesdrop on the traffic and to connect to the units. If used in applications where security
aspects are important please see the Paired secure connection section below.
The first step in configuring your devices is to determine which device will be master and corresponding
slave. You also need to determine the Bluetooth device address of both units. The address can be seen on
the label of the F2M01 or by using the configuration software (General settings tab).
Start by configuring the endpoint:
Attach the plug that will be the endpoint (Bluetooth slave) to the serial port and execute the configuration
software.
Slave configuration settings are found under the “Endpoint settings” tab. Select “Endpoint (Bluetooth slave)”
in the Device mode settings frame and choose the “No authentication” option. The next step is to enter
the Bluetooth address of the Connecting unit in the “Select accepted unit (Bluetooth address)” boxes. It
may be necessary to uncheck the “Accept all units” check box before entering the address
Click the “Write configuration” button to save the new settings to memory. Exit the configuration software.
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