Series 642 INSTALLATION
742280ED Edition 2017-11-24 31/
4.5.8 Valve cluster connection
The valve cluster uses a two wire bus for the inter communication between the Master and the Slave
valves. The valves are connected in a daisy chain and the bus must be terminated on both sides by a
120Ω resistor that can be set in the link adapter of the valve (refer to chapter «4.5.8.1 Link adapter»).
Example of valve cluster daisy chain
120Ω terminator category 5 link cable 120Ω terminator
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