Application Sheet
Lit. No.
VY7FC102
Date:
2000-02-04
ECL2000/Comfort - LON Network Bus Topology
ECL 2000
Terminator
LON
Heat Meter
Terminator
ECL Comfort 200/300
Main station
The FTT system (Free Type Topology) is
also designed to support bus topology wir-
ing. FTT-10 transceivers can be located at
any point along the network wiring. High ca-
pability simplifies system installation and
makes it easy to add nodes should the sys-
tem need to be expanded.
For the ECL 2000 the TP/XF-78 transceiver
is available as a lower price solution.
Limitations:
Maximum total cable length FTT 10-A:
2700 m.
Maximum total cable length TP/XF-78:
1400 m.
Maximum length of cable from “bus” to
equipment 3 m.
Requires 2 and only 2 terminators, con-
nected at the ends of the bus.
If the cable length exceeds 2700 m (FTT
10-A) / 1400 m (TP-XF-78), a physical re-
peater (maximum one) or a logical router
has to be connected every 2700/1400 me-
ters of the cable.
What do I need?
• 2 network terminators
If bindings between ECL 2000/Comfort, Heat Meter, etc. are desired or visualisation possibili-
ties of data from the network:
• PC (Laptop)
• Interface between LON network and the PC
• Binding tool
• Visualisation software incl. Drivers
/