nCM ADC / nCM ADCX
AUTOMATIC DIMMING PHOTOCELL
CEILING MOUNT • LOW VOLTAGE
SPECIFICATIONS
FEATURES
Automatically Dims Lighting via Remote or Local Dimming Output(s) Full On/Off Switching of Lighting
Communicates w/ nLight Network
Remotely Configurable/Upgradeable
Self-calibrating Set-Point
Push-Button Programmable
100 Hr Lamp Burn-in Timer
Green LED Indicator
PHYSICAL SPECS
SIZE: Circular 4.55” Dia. (11.56 cm)
1.55” Deep (3.94 cm)
WEIGHT: 6 oz
MOUNTING:
Ceiling Tile Surface
Round Fixture Box
Single Gang Handy Box
COLOR: White
nLIGHT NETWORK PORTS: 2 RJ-45
ELECTRICAL SPECS
POWER CONSUMPTION: < 3 mA
DIMMING LOAD of LOCAL OUTPUT(s): Sinks < 20mA; 0-10 VDC LED Drivers / Fluorescent Ballasts
WIRES:
nCM ADCX - None
nCM ADC - 20 AWG (2), 18 AWG (1)
OTHER
UL and CUL Listed
Title 24 System Component
5 Year Warranty
Assembled in the U.S.A.
The nCM ADCX communicates with remote
nLight switching and/or dimming devices (e.g.
nIO D, nIO LEDG, nIO EZ, nPP16 D, and
nPANEL) to automatically adjust a zones lighting
levels. The nCM ADC can communicate with
remote devices as well as control the dimming
level of any directly wired 0-10 VDC dimmable
driver or ballast through its integrated output.
The nCM ADC(X) can be used alone in a zone
or together with occupancy sensors.
OPTIONS
DUAL ZONE (DZ)
• Ideal for classrooms w/ individually
controlled parallel rows of light
• Controls a second remote relay or
dimming output
• For on/off operation, sensor uses a
relative set-point for the second
pole that is a percentage of the first
pole’s set-point
• For dimming control, the second
zone’s dimming output is controlled a
selected percentage higher than the
primary output [Note: if controlling
remote dimming output devices,
dimming offsets can also be achieved
via each device’s “SECONDARY
DIMMING (DUAL) ZONE OFFSET”
setting]
• ADC DZ version adds a second
integrated 0-10 VDC dimming output
(20 AWG violet/white striped wire)
SENSOR OPERATION
LOW TEMP/HIGH HUMIDITY (LT)
The sensor controls a zones lighting to achieve
• Sensor electronics are coated for
maximum daylight harvesting while maintaining
corrosion resistance
a minimum light level referred to as the set• Operates down to -40º F/C
point. When no daylight is available, the sensor
allows dimming outputs to operate at their full
bright level. As daylight increases and begins
to contribute to the overall light level of the room, the sensor starts dimming the controlled
lights proportionally. When sufficient daylight is present to maintain the set-point without any
contribution from the lights, a relay located elsewhere within the sensor’s zone is signaled
to switch the line voltage lighting load off
AMPLE DAYLIGHT
completely.
The lights will remain off until the daylight level
drops below the set-point. At this point, the
lights will be turned on with dimming outputs
at their full dim level. As the daylight levels fall
further, the sensor will reduce the dim level
(increasing the brightness) in order to achieve
the necessary light level. At the point when all
daylight contribution is gone, the lighting will be
back at its full bright level. To make the series
of adjustments unnoticeable to room occupants,
a 10 to 20% safety factor is maintained to
prevent the system from cycling when the light
level is very near the set-point. There is also a
user selectable 45 second to 25 minute delay
before the sensor transitions the lights on or off
prevents the system from cycling.
DIMMING
ENVIRONMENTAL SPECS
OPERATING TEMP:
14º to 160º F (-10º to 71º C)
RELATIVE HUMIDITY:
20 to 90% non-condensing
SILICONE FREE
ROHS COMPLIANT
OVERVIEW
The nLight nCM ADC(X) Series photocell sensor
provides both on/off and automatic dimming
control for daylight harvesting applications. Ideal
for spaces with windows, such as vestibules,
corridors, classrooms, or offices, the sensor
works by monitoring daylight conditions in a
room, then controlling the lighting so as to ensure
that adequate lighting levels are maintained.
Set-point
NO DAYLIGHT
Lights Turn ON
Lights Turn OFF
ON/OFF & DIMMING
ORDERING INFO
nCM [DAYLIGHTING] [DUAL ZONE] [TEMP/HUMIDITY]
OPTIONS
DAYLIGHTING
DUAL ZONE
ADC = Auto Dimming Control Photocell (with 0-10 VDC wires)
ADCX = Auto Dimming Control Photocell (no wires)
Blank = None
DZ = Dual Zone1
TEMP/HUMIDITY
Blank = Standard
LT = Low Temp
1. Not available with ADCX option. Dual zone operation can be
achieved via the networked devices with dimming outputs.
Revised 09.30.14 © 2014 Sensor Switch
WIRING (DO NOT WIRE HOT)
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.
nCM ADCX
nCM ADC
CAT-5e
BLK - 120 V
ORN - 277 V
nPP16
CAT-5e
CAT-5e
nPP16
BLK - 120 V
ORN - 277 V
LOAD
VIO (Dim Output)
CAT-5e
LOAD
GRY (Common)
GRN *
VIO/WHT STRIPED
[DZ] Dual Zone dimming output
*Note: A green wire is available for an optional connection to an approved
ground. This wire is isolated from the class 2 circuitry of the sensor. Connection
will provide improved network protection in case of accidental landing of line
voltage to VIOLET or GRAY dimming wires. If an approved ground is not
available the green wire should be capped.
nLIGHT OPERATION
This sensor is a native nLight device, meaning it has the ability to communicate over an nLight network. When connected, using CAT-5e
cabling, with other nLight sensors, power packs, or WallPods, an nLight control zone is created. Once linked to a Gateway, directly or via a
Bridge, the zone becomes capable of remote status monitoring and control via SensorView software.
DEVICE SETTINGS
Several operational settings for the nCM ADC(X) are available:
• Automatic set-point calibration mode
• Dual zone set-point offpoint % (110-200%)
• 100 hr burn-in timer mode
• Dual zone dimming offset (.5-10 VDC)
• Blink back set-point (in footcandles)
• Photocell transistion off timer (45 sec to 25 min)
• 10’s digit of set-point (0-200 fc)
• Photocell transistion on timer (45 sec to 25 min)
• One’s digit of set-point (0-9 fc)
• Photocell broadcasting (enable/disable)
• Dimming range upper limit (0-10 VDC)
• Photocell broadcast channel (1-16)
• Dimming range lower limit (0-10 VDC)
• Sunlight discount factor (1-8)
INSTALLATION
PUSH-BUTTON
RJ-45 PORTS
• Mount sensor directly to a ceiling tile or a metallic grid (two selftapping screws provided)
• Sensor’s mounting holes also align with standard round fixture or
single gang handy box (screws not provided)
• Interconnect unit (via RJ-45 ports) with other nLight devices in
lighting zone using CAT-5e cables
• Once power is received via CAT-5e connection, all devices in zone
will automatically begin functioning together according to each
device’s defaults
PROGRAMMING
Refer to included instruction card for default settings and directions on programming the sensor via the push-button.
WARRANTY: Sensor Switch warrants these products to be free of defects in manufacture and workmanship for a period of 60
months. Sensor Switch, upon prompt notice of such defect, will, at its option, provide a Returned Material Authorization number and
repair or replace returned product.
LIMITATIONS AND EXCLUSIONS: This Warranty is in full lieu of all other representation and expressed and implied warranties
(including the implied warranties of merchantability and fitness for use) and under no circumstances shall Sensor Switch be liable for
any incidental or consequential property damages or losses.
TN-110-05
900 Northrop Road, Wallingford, CT 06492 • 1.800.PASSIVE • sensorswitch.com