User Instructions

Stollmann
E + V GmbH
BlueRS+I
DesignGuide
Author: cl Date of Savin
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: 19.03.04 Ref: Revision: 1.2 Pa
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e 6 of 22
3 Applications
BlueRS+I can be used in different applications. Some typical are described in this
chapter. For application requiring an external adapter please refer to other BlueRS+
versions from Stollmann.
3.1 Cable Replacement Serial Point-to-point
To establish a cable replacement between two devices with a serial interface,
BlueRS+I can be used.
3.2 Cable Replacement Multipoint
Since several devices may be connected with a master device via Bluetooth, several
end devices can also be multiplexed via Bluetooth. This adaptation is shown below
for a desktop device.
In order to handle multiple links a multiplexing protocol is required for the
communication between devices, the BlueRS+ and the host. The BlueRS+ has to be
adapted to the routing scheme of the protocol to transmit the data in an appropriate
way. This includes Bluetooth connection control (i.e. are the Bluetooth links
permanently active or only on demand) and data distribution (i.e. are all data from
the host to be forwarded to all devices or only depending on the address header; are
data from the devices are transmitted to the host transparently or is an address
header to be added). In case you have a multipoint application please contact
Stollmann for specific support.
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RS-232
BlueRS+
Control Unit
BlueRS+I
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Multiplxing
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RS-232
BlueRS+
Control Unit
Device
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BlueRS+I
BlueRS+I