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NX ROOM CONTROLLER

INSTALLATION AND OPERATION 

Model Numbers: NXRC-1R-UNV, NXRC-2R-UNV, NXRC-1RD-UNV, NXRC-2RD-UNV

PRECAUTIONS

•  Read and understand all instructions before beginning installation.

•  NOTICE: 

 For installation by a licensed electrician in accordance with National and/or 

local Electrical Codes and the following instructions. 

•  Disconnect switch or a circuit breaker must be provided and marked as the 

disconnecting device.  

•  Disconnect switch / circuit breaker must be within reach of operator.  

•  CAUTION: RISK OF ELECTRICAL SHOCK

. Turn power off at service panel before 

beginning installation. Never wire energized electrical components.

•  CAUTION: USE COPPER CONDUCTOR ONLY

•  Confirm device ratings are suitable for application prior to installation.  Use of device in 

applications beyond its specified ratings or in applications other than its intended use 

may cause an unsafe condition and will void manufacturer’s warranty.   

•  NOTICE: 

 Do not install if product appears to be damaged.

SAVE THESE INSTRUCTIONS!

DESCRIPTION

Hubbell Building Automation’s NX Room Controller is a self-contained intelligent power 
pack. It contains either one or two independently controlled outputs. Optional 0-10VDC 
outputs are available for controlling dimmable ballasts and LED drivers. The NX Room 
Controller also features four Smart Ports that provide plug and play support for NX 
occupancy sensors, daylight sensors and manual control switches. The NX Room Controller 
can operate stand alone or networked with other NX controls. 

SPECIFICATIONS

Max Load Rating  120/277/347VAC (SPST)
  20A 

Incandescent

 

 

20A Magnetic Ballast 

 

 

16A Electronic Ballast/Driver

 

 

1HP motor load

Dimming  

0-10VDC, Current sink, 60mA per channel

Operating Temp  0°C to +40°C 
Certifications  

Conforms with UL916 and Certified to CAN/CSA C22.2 #205-12 

  Plenum 

rated

Warranty   

Five-year limited warranty

INSTALLATION

1.  DO NOT DISCARD THE INCLUDED MAC ADDRESS LABELS. SEE STEP (5) BELOW.
2.  Turn power off at the service panel.
3.  Mount the Room Controller (RC) to the outside of a junction box using the Room 

Controller’s extended ½” chase nipple. Secure to box with enclosed EMT nut. (See 
Figure 1)

4.  The Room Controller has a MAC address label affixed to the outside of the unit. Place 

the enclosed MAC address label(s) in a log book and record the location of the Room 
Controller and the circuit(s) it controls. The MAC address will be needed later during 
the system setup process. 

5.  If control devices (e.g. occupancy sensors, daylight sensor and switches) are going to 

be used, attach them to any available Smart Port with the appropriate CAT5 device 
cable. Similar devices (e.g. switches) may be daisy chained together from the same 
Smart Port. ( See Figure 2)

6.  Electrically connect the Room Controller to the circuit(s) as shown in Figure 3. Reapply 

power at service panel.

7.  Test installation as follows: 
       a. Momentarily press Button A to toggle Load A (red wire) ON and OFF
       b. Momentarily press Button B to toggle Load B (blue wire) ON and OFF (2 Relay   
            Models Only) 
       c. With Load A ON, press and hold Button A down to dim Load A down. 
           Release Button A and press again to dim Load A up. 
       d. With Load B ON, press and hold Button B down to dim Load B down. 
           Release Button B and press again to dim Load B up. 

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.  

NETWORKED

Lighting Controls

TM

Figure 1: Room Controller mounted to 4x4 junction box

Figure 2: Room Controller SmartPORTs – Connect control devices (e.g. oc-

cupancy sensors, daylight sensor and switches) to any available Smart Port

Figure 3

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 maunally 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.  

The sensor can be connected to the Room Controller Smart Port using a pre-terminated 
CAT5 cable (see Figure 3).  Alternately, the adapter can be connected to the Room 
Controller Smart Port and one or more sensors connected using traditional low voltage 
wiring. The adapter is color coded to match the flying leads on the sensors.

NOTE: Once any NX digital switch station is connected to the Room Controller, the mode 
of operation will automatically switch to vacancy mode (manual on) for all loads.  To 
change one or more load(s) to automatic on operation see Manual Configuration section.

DIGITAL SWITCH STATIONS

The NX Digital Switch Stations will automatically configure themselves to control the 
available loads within 5 seconds after being connected to the Room Controller.  For best 
results, do not press any buttons for 5 seconds after plugging in a switch station.  This allows 
time for the system to self configure and stabilize.  

Model number switch stations 

NXSW-1, NXSW-2, NXSW-3, NXSW-4, NXSW-6

 will have 

all buttons configured for ON/OFF toggle operation by default.  These stations will self 
configure to sequentially control the loads.  For example, a 

NXSW-1

 will control load 1, a 

NXSW-2

 will control loads 1 and 2, etc.  The relationship between the buttons and the loads 

can be changed.  See Manual Configuration section.  

NOTE: If the zone has more loads 

than buttons, the last button in the sequence will automatically control the remaining 
loads.  This insures that no load is left uncontrolled during the self configuration process.

The NX Specialty Switch Stations model 

NXSW-OO

 and 

NXSW-TO

 will self configure the 

same as the 

NXSW-1

 as described above.

The NX Specialty Switch Stations model number 

NXSW-RL

NXSW-SS

 and 

NXSW-ORLO

 

have dimming functionality and will self configure to control all loads.  The relationship of 
the stations to the dimmed loads can be changed.  See Manual Configuration section.

* See addressing Instructions 

provided with the NXSW Switches 

for “Daisy Chain” series connection 

installation. 

*

*

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