Installation, Operating & Maintenance Instructions 
Series 650 DN 100-250 (I.D. 4“ - 10”), CC-Link 
 
 
 
VAT Vakuumventile AG, CH-9469 Haag, Switzerland 
Tel +41 81 771 61 61   Fax +41 81 771 48 30   CH@vatvalve.com www.vatvalve.com 
280672EB 
2010-12-15 
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2.6.10 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 120 resistor that can be set in the 
link adapter for the valve (refer to chapter «2.6.10.1 Link adapter»)  
 
 
 120 terminator  category 5 link cable  120 terminator 
valve cluster daisy chain