R&S OSP
Applications
Operating Manual 1505.3896.12 - 14
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8.3.2.2 Connection with Fiber-Optic Cables
For larger distances between both OSP units or if the R&S OSP150 is operated inside
an anechoic chamber with the R&S OSP120 or R&S OSP130 placed outside the
chamber, a fiber-optic connection can be used. The fiber-optic connection with suitable
fiber-optic feed-through connectors ensures that the shielding effectiveness of the
chamber is maintained.
The fiber-optic connection is a transparent extension of the CAN bus. Two converters
are required to transform the CAN bus signal from electrical to optical and vice versa.
Standard off-the-shelf equipment can be used for the fiber optic link. Contact your R&S
representative for further information or recommendation.
Converter
R&S OSP 150
R&S OSP 120
Converter
Fiber
optic
cable
Connection
cable
Connection
cable
The fiber-optic extenders can be supplied with DC power from the R&S OSP devices
via the CAN bus connectors and appropriate connection cable.
See chapter ‘Rear Panel Connectors’ for details on the CAN bus connector pinout.
8.3.3 How to Register the R&S OSP150
Assume you have connected one R&S OSP150 to your R&S OSP120. When starting
for the first time, it is required to register the configuration on the R&S OSP120. In
order to do so, first the R&S OSP120 has to be registered, as described in
chapter
. Then, in a second step, the R&S OSP150 has to be registered on frame F02
with the address 5xxxxxx where xxxxxx is the serial number of the R&S OSP150.
If there are more cascaded R&S OSP150 units, use the frame numbers F03 and
higher for registration.
