Pepperl+Fuchs LS611 Series, Руководство пользователя

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Dat
e of
I
s
sue
04/
22/
2008
Par
t No.
194341
Optical data coupler LS611
Initial operation
18
As the internal bus connections are switched parallel, the inputs and outputs for the bus
cable are identical for the bus cable.
6.6 Topology
A pair of optical data couplers acts as a repeater; the maximum bus cable lengths refer
to the respective segments only. In case of illustration 6.16 the maximum length can be
laid between the terminating resistors, and the maximum number of stations can be con-
nected to all lines.
Table 6.15 Topology
Like in repeaters, star or tree topologies may be set up through light paths.
Illustration 6.16 Topology
Baud rate
[kBit/s]
Maximum segment length
[m]
93.75 1200
187.5 1200
500 400
1500 200
A
A
A
A
A A
A
A A A
LS611 LS611 LS611
LS611 LS611 LS611
LS611 LS611
A
Units Units
Units Units
Units Units Units Units
= Terminal resistor