Setting the Q.RCU-D-xx Sensor
Subnet ID
Each Q.RCU-D-xx communicating sensor connected to a controller’s
Subnet Port must be set to a unique subnet ID address. The address is
set through the DIP switch located next to the Subnet Port connectors.
See
Figure 3: Connectors and Dipswitch Locations
Switch Position
Q.RCU-D-xx
Subnet ID Address
1
2
3
4 (EOL)
OFF
OFF
OFF
ON or OFF
See
1
ON
OFF
OFF
1
OFF
ON
OFF
2
ON
ON
OFF
3
OFF
OFF
ON
4
ON
OFF
ON
5
OFF
ON
ON
6
Q.RCU-D-xx sensors and Q.RCU-DC-xx sensors share
the same adressing range.
Subnetwork Bus Topology and
EOL Terminations
Only a daisy-chain topology is acceptable for the room device
subnetwork bus. T-connections are not allowed.
Onla the EOL terminations of the last subnetwork bus device are set
to
ON
.
All other subnetwork bus devices must have their EOL terminations
set to
OFF
.
The controller must be the first device on the Cat 5e Cable Subnetwork
bus as its internal EOL termination is permanently enabled.
See
Table 2 : Number of room devices supported
by controller model, and allowed adressing range
for the number of room devices that a given controller
model can support.
Typical Room Devices
Cat 5e Cable Subnetwork Bus
Controller Series:
· Q.RC-D1xxx series
Adapter
EOL set to ON
at the last
sensor at the
end of the Bus
Back of Q.RCU-D-Txx
ON
OFF
6
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Installation Guide | 26-604_ENG01 02-2016
www.sbc-support.com
Saia-Burgess Controls AG
Q.RCU-D-xx Series
