OPERATION GUIDE
The NX Room Controller is designed to control and manage lighting within a single room or zone in a building. Working in conjunction with an
occupancy sensor(s), daylight sensor, and wall switch station(s), the room controller intelligently responds to inputs to perform the required lighting
control sequence of operation. The room controller operates with the connected control devices as a stand-alone local control system but can be
extended to participate in a building-wide networked lighting control system with the addition of the NXHNB Network Bridge Module.
(e.g. occupancy sensors, daylight sensor and switches) to any available Smart Port
CONNECTING MULTIPLE ROOM CONTROLLERS
Room controllers can be inter-connected to expand the number of relays and dimmers in the room or to allow the use of more than one voltage. Use
CAT5 cable(s) to connect the room controllers in a daisy chain configuration. That is, no more than one RJ45 port in each room controller should be
used for this connection. A maximum of 8 room controllers may be connected for a maximum of 16 relays and 16 dimmers. Self configuration will
function normally up to a maximum of 6 loads. Manual configuration will be required beyond 6 loads.
CONNECTING LOW VOLTAGE CONTROL DEVICES
The Room Controller provides a source of 24 VDC current to power the connected control devices such as switch stations and sensors. A maximum
of 250 mA of 24 VDC current is available. Since the control components draw differing amounts of current, the following table should be used to
determine how many control devices can be connected to a single room controller. In cases where two or more room controllers are connected
together, the power budget is determined for each room controller based on the control devices that are plugged into that room controller. See
Figure 3.
MAXIMUM POWER BUDGET PER ROOM CONTROLLER = 30 LOADS
Switch station = 1 Load
PIR only Occupancy sensor = 1 Load
PIR only Occupancy sensor with RP option = 2 Loads
Dual Technology and Ultrasonic Occupancy sensor = 3 Loads
Dual Technology and Ultrasonic Occupancy sensor with RP option = 4 Loads
Daylight Sensor (photocell) = 1 Load
NOTE: Only one daylight sensor can be connected in each room/zone
SELF CONFIGURATION
The sequence of operation in the room will automatically reconfigure as devices are plugged into the room controller as described in the following
sections. Note that self configuration will automatically be disabled once the room has been manually configured. See Manual Configuration section.
OCCUPANCY SENSORS
The NX room controller is compatible with any low voltage Hubbell Building Automation vacancy/occupancy sensor that uses the red/black/blue
control wires. A wiring adapter (RJ45ADAPTOR) is required to make the wiring transition from the flying leads on the sensor to the RJ-45 Smart Port
on the room controller. Hubbell Building Automation sensors ordered under model NXOS series model numbers are automatically supplied with the
adapter and a short CAT5 jumper cable.
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identifiers are trademarks ™ or registered trademarks ® of Hubbell Lighting, Inc. or their respective owners. Use of them does not necessarily imply any
™
Figure 1: Room Controller mounted to 4x4 junction box
Figure 1: Room Controller mounted to 4x4 junction box
Figure 2: Room Controller SmartPORTs – Connect control devices
Figure 2: Room Controller SmartPORTs – Connect control devices (e.g. oc
cupancy sensors, daylight sensor and switches) to any available Smart Port
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