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fibre optic transmitter (LLS) X30
fibre optic receiver (LLE) X31
to the plug-in power supply
FIG. 14 SIGNAL CONVERTER RS 232/FIBRE OPTIC
LLV.V
The fi bre optic distributor supply LLV.V is the basic component for the fi bre optic system. It serves
to connect star distributors and to amplify the light signals received. Its power supply is suffi cient
for supply of fi ve fi bre optic distribution components of the type LLV.4.
The amplifi cation of LLV.V in the fi bre optic data path is suffi cient for increasing the distance for
each LLV.V by about 50 m, so that overall longer transmission paths are possible then.
LLV.4
The fi bre optic distributor LLV.4 is connected to the base component LLV.V. It is able to distribute
the optical signal to respectively receive from four connections and therefore multiplies the signal
from the computer to Thyro-P by four units each. The maximum distance from LLV.4 to Thyro-P
should not exceed about 25 m.
In case of optimum installation conditions (number of bends, connection mounting, etc.), the dis-
tances stated in the following table may be realized:
DEVICE PC LLV.V LLV.4 THYRO-P
PC – – 50 m – – 25 m
LLV.V 50 m 50 m – – 25 m
LLV.4 – – 50 m – – 25 m
Thyro-P 25 m 25 m 25 m – –
TAB. 23 FIBRE OPTIC DISTANCES