4 Setting Up
4.5 Installation
22
Version 2.4 04/07
4.5.3 Mounting the modules
The OZD Profi 12M … modules can either be mounted
on a 35 mm hat rail in accordance with DIN EN 50022
or directly on to a flat surface.
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Install the device in a location where the climatic and
mechanical limit values defined in the Technical Data
can be complied with.
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Ensure that there is sufficient room to connect the bus
and power supply cabling.
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Connect the optical fiber line before mounting the
module. This is easier than connecting it after the
module has been installed.
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Only mount the module on a low-impedance and
low-induction grounded hat rail or base plate. No
other grounding measures are required.
4.5.2 Connecting the optical lines
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Connect the individual modules using a dual-fiber
optical fiber line with BFOC/2.5 connectors.
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Ensure
– that the end faces of the optical plugs are free of
contamination.
– that respectively one optical input
a
and one
optical output
J
are connected to one another
(crossover connection).
The BFOC port sockets which belong to one other
are marked on the bottom of the front plate.
– that the optical plugs on the BFOC socket are
securely attached (bayonet fastener must be
slotted in).
– that, with single-mode optical fiber, the BFOC plug
spike is fully pushed into the optical fiber cable
sockets. If necessary, make sure that the optical
fibers are contacted correctly by gripping the
reinforcing sleeve and pushing the connector into
the socket.
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Ensure that there is sufficient strain relief on the
optical fiber line, and pay attention to the minimum
bend radius.
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Seal BFOC sockets which have not been assigned
using the supplied protective caps (note: an optical
port which has not been assigned should be switched
to the operating mode ”Line without optical fiber link
monitoring“ to avoid a break in the fiber line from
being signaled).
Extraneous ambient light can cause interference in
the network, especially under very bright conditions.
Optical components can be rendered useless if dust
infiltrates them.
䊳
Please note the maximum length of the optical fiber
line and the possible fiber types which are shown in
Table 1, p. 6 and in the Technical Data, p. 33.
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After installing the optical network, check the quality
of the link using the measuring sockets. The measured
values must be within the permissible range, as
shown in Appendix 8.7 ”Measuring sockets“, Diagram
1, p.37.
I
I
J
J
CH 2
CH 3
Fig. 8: View of the bottom of the module with the optical ports
2 and 3 (device with two optical ports).
