nLight nCM ADCX RJB User manual

Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: [phone] www.acuitybrands.com/nLight
© 2014-2021 Acuity Brands Lighting, Inc. All rights reserved. Rev. 12/28/21
nCM ADCX (PC) RJB - TN-140-001
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OVERVIEW
The nCM ADCX RJB and nCM PC RJB photocell sensors are ceiling/surface mount devices
that provide a range of daylight harvesting features for nLight Control System installations with
nished ceilings (e.g. ceiling tiles, sheetrock, plaster). The nCM PC RJB version provides on/off
photocell control by default, while the nCM ADCX RJB provides automatic dimming photocell
control by default. Ideal for spaces with windows, such as vestibules, corridors, classrooms, or
ofces, these sensors work by rst monitoring daylight conditions in a room. They then signal
networked nLight control devices to adjust their dimming outputs (and/or turn lighting off) to
obtain maximum energy savings while ensuring adequate lighting levels are maintained.
The nCM ADCX RJB sensor controls nLight enabled luminaires (e.g.VTLED Family from Lithonia),
nLight dimming relay packs (e.g. nPP16 D or nSP5 PCD), or auxiliary dimming output devices
(e.g. nIO D). The nCM PC RJB switches nLight enabled luminaires or any relay/dimming device
in an nLight system (e.g. nPP16). Both sensors can also be used together with nLight occupancy
sensors. Manual override or adjustment of the dimming level is possible via WallPod dimmers or
through the SensorView software.
Both versions are powered via the nLight network bus and can communicate with one or more
nLight enabled luminaires or nLight relay/dimming packs to enable control of xtures
individually or in groups. These congurations work standalone and do not require a connection
to a larger nLight network.
FEATURES
• Automatic Dimming Photocell Control (nCM ADCX RJB model only)
• Full On/Off Photocell Switching Control (disabled by default on nCM ADCX RJB)
• Optional Inhibit mode: Photocell can prevent lights from turning on if adequate daylight is
available, but does turn lights off (nCM PC RJB model only)
• LED status indicator
• Adjustable settings (e.g. set-point) via push-button or SensorView software application
• Broadcasts photocell information over a local nLight channel
• Remotely upgradeable rmware
Catalog Number: Date: Project:
nCM Example: nCM ADCX RJB
Series Dual Zone Temp / Humidity Additional Features (choose 1) Buy America(n)1
nCM ADCX Automatic Dimming
Control Photocell
nCM PC On/Off Control Photocell
[blank] Single Zone Control
DZ Dual Zone Control
[blank] Standard
LT Low Temp/ High
Humidity
RJB Rear RJ45 (CAT5e patch
cable & RJ45 splitter
included)
[blank] Standard
BAA Buy America(n) Act
Compliant
ORDERING INFORMATION
Capable
This item is an A+ capable component, which has been designed and tested to provide out-of-the-box
luminaire compatibility with simple commissioning, when included as part of an A+ Certified™ Solution.
To learn more about A+, visit www.acuitybrands.com/aplus.
Buy American
BAA variants of this product are assembled in the USA and meet the Buy America(n) government
procurement requirements under FAR, DFARS and DOT.Please refer to www.acuitybrands.com/buy-american
for additional information.
Warranty
Five-year limited warranty. Complete warranty terms located at:
www.acuitybrands.com/support/warranty/terms-and-conditions
Note: Actual performance may differ as a result of end-user environment and application.
Specifications subject to change without notice.
nCM ADCX RJB
nCM PC RJB
Daylight Harvesting
Photocell
Notes:
1. Not available with LT
Buy American

Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: [phone] www.acuitybrands.com/nLight
© 2014-2021 Acuity Brands Lighting, Inc. All rights reserved. Rev. 12/28/21
nCM ADCX (PC) RJB - TN-140-001
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PHOTOCELL OPERATION
The nCM ADCX RJB sensor continuously adjusts a space’s lighting to achieve maximum daylight harvesting while maintaining a minimum light level, referred
to as the set-point.When no daylight is available,the sensor allows the controlled dimmable lighting to operate at its full bright level.As daylight increases and
begins to contribute to the overall light level of the room, the Automatic Dimming Control (ADC) feature starts dimming the room proportionally, eventually
reaching the full dim level (or optionally switching off, see paragraph below). As the daylight levels fall, the ADC feature will again take control of the lights;
reducing the dim level (increasing the brightness) in order to achieve the necessary total light level. At the point when all daylight contribution is gone,
lighting will be back at its full bright level.
The nCM PC RJB sensor does not control dimming, but instead signals nLight devices located elsewhere within the sensor’s zone to switch a controlled lighting
load on when more light is needed.The lights are also signaled to turn off when light is above the set-point plus a 10% safety factor and deadband.The safety
factor will prevent the system from cycling when the light level is very near the set-point. The deadband is the level of light contributed by the articial lights
being controlled. This level is tracked so if the lighting conditions change (for example a lamp burns out) the point at which the lights turn off is adapted
accordingly. If the photocell can not view the lights being controlled (for example if it is looking up at skylights), there is no deadband and the sensor is said to
be working open loop. There is also an adaptive cloud delay (optional) before the photocell turns the lights off to prevent the system from cycling on a cloudy
day.
AMPLE DAYLIGHT
Set-point
Lights Turn ON Lights Turn OFF
DEADBAND
NO DAYLIGHT
AMPLE DAYLIGHT
Set-point
Lights Full ON Lights Full DIM
DIMMING
ON/OFF CONTROL (nCM PC RJB)
AUTOMATIC DIMMING (nCM ADCX RJB)

Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: [phone] www.acuitybrands.com/nLight
© 2014-2021 Acuity Brands Lighting, Inc. All rights reserved. Rev. 12/28/21
nCM ADCX (PC) RJB - TN-140-001
3 of 4
WIRING
WHT (neutral)
BLU (line in)
BLU (line out)
VIO (low voltage dim out)
GRY (low voltage common)
GRN
CAT-5e
nPP16 D
or
nPP16 DS
0-10 VDC
Ballast or
LED Driver
120 VAC
OR
277 VAC1ORN1(line in)
BLK1(line in)
To other nLight
devices (optional)
CAT-5e Splitter
(included)
CAT-5e CAT-5e
To other nLight
devices (optional)
nCM ADCX RJB
T568B pin/pair assignment is recommended for all CAT-5e cables. Sensor power is provided via the CAT-5e connection to an nLight power pack/supply,
nLight enabled digital luminaire, or nLight Bridge.
CAT-5e
To other nLight
devices (optional)
nLight Enabled
Luminaire
CAT-5e Splitter
(included)
CAT-5e CAT-5e To other nLight
devices (optional)
nCM ADCX RJB
or
nCM PC RJB
Wiring an nCM ADCX RJB to an nLight Dimming Relay Pack
Wiring to an nLight Enabled Luminaire
nPP16
WHT (neutral)
BLU (line in)
BLU (line out)
CAT-5e
120 VAC
OR
277 VAC1
BLK1(line in)
ORN1(line in)
LOAD
To other nLight
devices (optional)
CAT-5e
CAT-5e Splitter
(included)
CAT-5e CAT-5e
To other nLight
devices (optional)
nCM PC RJB
Wiring an nCM PC RJB to an nLight Relay Pack
Several operational settings for the nCM ADCX RJB and nCM PC RJB are available and congurable through the unit’s push-button and/or SensorView
software, including:
Common Settings:
• Photocell Broadcasting (Enable/Disable)
• Photocell Broadcasting Channel (1-16)
• LED Indicator (Enabled/Disable)
• Automatic Set-point Calibration Mode
• Blink-back Set-point (in footcandles)
• Set-point (0-200 fc)
• Sunlight Discount Factor (1-10)
• Photocell On/Off Transition Time (45 sec - 25 min)
nCM PC RJB Specic Settings:
• Adaptive Cloud Delay (Enable/Disable)
nCM PC DZ RJB Specic Settings:
• Photocell Pole 2 Broadcasting Channel (1-16)
• Photocell Mode:
¤Duo - Automatic step dimming
¤Duo (Never off) - Automatic step dimming with one load always
left on
¤Inhibit - Loads will be held off if sufcient daylight present, but
once on will not turn off from daylight
• Dual Zone Off-Point (110 to 200%)
nCM ADCX RJB Specic Settings:
• Override (Full Dim/Full Bright/Normal)
• Switch Tracking (Enable/Disable)
• Switch Tracking Channel (1-16)
• WallPod Dimming Adjustment (Temporary, Photocell Temporary Override,
Permanent)
• Occupied Bright Level (1-100%)
• Unoccupied Dim Level (1-100%)
• Dimming Rate
• Photocell On/Off (Enable/Disable)
nCM ADCX DZ RJB
• Photocell Pole 2 Broadcasting Channel (1-16)
• Dual Zone Percentage Offset (-200 to 200%)
• Dual Zone Off-Point (110 to 200%)
DEVICE SETTINGS
Note 1
BLK - 120 VAC
ORN - 277 VAC (or 347 VAC if unit has 347 option)

Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: [phone] www.acuitybrands.com/nLight
© 2014-2021 Acuity Brands Lighting, Inc. All rights reserved. Rev. 12/28/21
nCM ADCX (PC) RJB - TN-140-001
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Electrical Input Ratings 15-24VDC, 3mA, Class 2 (nLight network power)
Output Ratings 24 VAC/VDC, 1A - Resistive (AR option)
Relay Type Latching (AR option)
Standards/ Ratings Energy Management Equipment, UL916 (E167435)
Mechanical Dimensions 4.55”W x 1.55”D (116mm x 40mm)
Mounting Single-Gang or Octagonal Box, Surface Mount
Color White
Finish Matte
Connection Type RJ-45 nLight Network Ports (2 ports via included RJ-45 splitter)
Low-Voltage Leads (AR option)
Environmental Warrantied Operating Temperature Standard: 14°F to 185°F (-10°C to 85°C)
LT option: -4°F to 185°F (-20°C to 85°C)
Relative Humidity Up to 90%, Non-Condensing
Standards/ Ratings RoHS
General Standards/ Ratings System Component to aid in compliance with Title 24,ASHRAE 90.1, IECC
SPECIFICATIONS