CARLO GAVAZZI UWP 3.0, Руководство пользователя, Страница: 16 / 45

How to install an UWP 3.0 system
16
1.3 The Dupline® bus
The Dupline® bus is a signal transmission system that reduces the need for wires, as compared with
standard buses. Using only 2 wires, the information can be transmitted from up to 2 km away. Many input
and output modules are supplied from the same 2 wires. Both digital (on-off) and analogue (e.g.
temperature, light level, wind speed and other) data is present on the bus at the same time ; all signals
are processed by the
UWP 3.0 .
The
SH2MCG24 is the smart Dupline® bus generator that powers the Dupline® bus onto the local bus
and onto the terminals at the top. All the Dupline® slave modules have to be connected to one UWP 3.0
to be part of the building automation system.
The
SH2MCG24 is powered by 15 to 30Vdc.
The Dupline® modules in the building automation system can be divided into two groups:
- Decentralized modules: these are all the modules such as light switches, PIR sensors, lux
sensors, decentralized I/O modules, etc. which are mounted into the wall boxes or on the wall
- Centralized cabinet modules: these are the ones housed in the 1-DIN or 2-DIN housing for din
rail mounting
All our
decentralised Dupline® devices are connected to each other with a single 2-wire cable. This
cable carries the communication signal that comes from the bus generator UWP 3.0 . These 2 wires carry
a DC low-voltage pulsating signal, and therefore attention must be paid to keep the correct polarity of the
connection.
The Bus is overload and short-circuit protected, but anyway it is a good rule to avoid to invert the
polarity.
The modules cannot withstand voltages other than the Dupline® signal voltage (5.5V to 10V).
Dupline® bus
Dupline® bus