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LPT-10
Abbreviation for Link Power Transceiver.
This transmission medium is a twisted pair variant. Technically it corre-
sponds to the "Free topology FTT-10" variant, except that it has the advan-
tage that the unit supply voltage can be jointly transmitted via the bus line.
In this manner a conductor pair is saved in the cable, and the chances of a
mistake when connecting (what is the bus and what is voltage?) is reduced.
However, LPT-10 requires an additional supply voltage level, namely a spe-
cial link power supply (input voltage e.g. 48 - 56 V, output voltage approx.
42 V/1.5A).
There are also limitations with regard to loading capacity - only a limited
number of units can be supplied with power by a link power pack (important
is, for example, units with light diodes or relays, which often have a higher
current requirements). Installation advantages include above all buildings in
which wiring of push-buttons and switches are to be found. Link power sig-
nals can also be switched on TP/FT-10 units, if these contain the corre-
sponding block capacitors, which blocks off the supply voltage.
Note:
A prior consideration of the economics may be necessary prior to using
LPT-10.
Ensure that the power supply is of a suitable level with reserve capacity, in
accordance with the worst case for all units in the segment!
In addition also check the LPT-10 compatibility of TP/FT-10 units.
N
Network interface
The network interface describes the interface from a node to the network.
It consists of multitude of objects, whereby for each task one object will be
defined. This objects in turn consist of a set of network variables (NVs) and
a set of configuration properties (CPs).
Network Management Tool Software
A Network Management Tool Software ist a software, with which network
devices (nodes) can be integrated, addressed, maintained and binded net-
work variables. The network management tool should be based on LNS.
Withit the start of configuration Plug-Ins from various manufacturers is pos-
sible via the NM tool.
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