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Configuring Networks
3-8
SIMATIC NET Twisted-Pair and Fiber-Optic Networks
C79000-G8976-C125-02
Optical Star Coupler Cards
Interface Card Delay Equivalent Variability Value
ECFL 2 170 m *) **)
ECFL 4 130 m *) **)
Electrical Star Coupler Cards
Interface Card Delay Equivalent Variability Value
ECAUI 165 m *) **)
ECTP 3 55 m *) **)
UYDE 170 m *) **)
* The specified delay equivalents of the star coupler cards relate to only
one port (input or output), in contrast to the calculation for the OLM/ELM.
If, for example, there is a change from ECFL2 to ECTP3 at a star coupler,
the 170 m of the ECFL2 and the 55 m of the ECTP3 must be added. This
also applies when the changeover is between the two ports of the same
module, in this case the values of the corresponding interface card must
be doubled.
** The variability values of the star coupler cards depend on the
combinations of interface cards in the star coupler and are listed in Table
3-3.
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