Leviton CN100 User manual

Raising Worker
Productivity
Through Modern
Lighting Controls

TABLE OF CONTENTS
TABLE OF CONTENTS
CHAPTER 1: SYSTEM & COMPONENT OVERVIEW
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Energy Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Daylight Harvesting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Occupancy Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Environmental Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Additional Savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
User Control & Convenience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Computer Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
DIMMING POWER PACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Programmable Power Pack Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Power Pack Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
OCCUPANCY SENSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Selection & Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
PHOTOCELL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
CENTURA DIMMING CONTROLLER WITH IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
CENTURA DIMMING CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
CENTURA SWITCHING CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
INFRARED REMOTE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
DESKTOP LIGHTING CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
System Requirements for Leviton Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
LEVITON HTTP SERVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SMARTJACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
LEVITON PERSONAL DIMMER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
LEVITON PERSONAL DIMMER ADMINISTRATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
CHAPTER 2: CENTURA SYSTEM DESIGN SCENARIOS
Scenario 1: Energy Management System with Maximum User Control for Closed Rooms . . . . . . . . . . . . .14
Scenario 2: Basic Energy Management System for Closed Rooms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Scenario 3: Dimming System with Maximum User Control for Closed Rooms . . . . . . . . . . . . . . . . . . . . . .15
Scenario 4: Energy Management System for Open Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Scenario 5: Dimming System with Maximum User Control for Open Spaces . . . . . . . . . . . . . . . . . . . . . . .16
Non-Dimming Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
CHAPTER 3: INSTALLATION
WIRING & OTHER PRE-INSTALLATION CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
About LCnet Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Adding a New Node with a Tap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Wire Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Low-Voltage Wiring from CN100 Power Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
OTHER WIRING CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
For SmartJack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
For Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Node Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Peripheral Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
INSTALLING CENTURA COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
CN100 Dimming Power Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Occupancy Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Photocell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
CN200 Dimming Controller with IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
CN221 Dimming Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
CN220 Switching Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
SmartJack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Leviton Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Changing Switch/Jack Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

TABLE OF CONTENTS
CHAPTER 4: PROGRAMMING
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Helpful Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
SETTING ADDRESSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Set Power Pack Address (along with programming component’s address) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
With the CN200 Dimming Controller with IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
With the CN221 Dimming Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
With the CN220 Switching Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Set Other Controller Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
CN200 Dimming Controller with IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
CN221 Dimming Controller or CN220 Switching Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Set All Other Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
SETTING LIGHT LEVELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
With the CN200 Dimming Controller with IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Minimum Light Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Light Maintain Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
With the CN221 Dimming Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Minimum Light Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Light Maintain Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
CHAPTER 5:TESTING
TESTING YOUR CENTURA SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Basic Power Pack / System Operations with a CN221 or CN200 Controller . . . . . . . . . . . . . . . . . . . . . . . .34
Occupancy Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Photocell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Wall Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Infrared Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
SmartJack & Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
CHAPTER 6:TROUBLESHOOTING
LIGHTS WON’T TURN ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
And Sensor/Controller LED’s DON’T Light Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
And Sensor/Controller LED’s DO Light Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Basic Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
No Occupancy Sensors Attached . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Occupancy Sensor(s) AND Photocell Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
SOME Controllers Work while Others Don’t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Using a Personal Dimmer on the PC to Control Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
LIGHTS WON’T TURN OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Basic Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
LPDA Software is Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
An Occupancy Sensor is Attached . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
LIGHTS KEEP TURNING ON AND OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
LIGHTS ARE FLICKERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
LIGHT LEVELS DO NOT PROPERLY ADJUST TO FLUCTUATIONS
IN ROOM CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
EVERY TIME I BRIGHTEN THE LIGHTS, THEY DIM BACK DOWN
AFTER 30 MINUTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

1
SYSTEM & COMPONENT OVERVIEW • INTRODUCTION
Chapter 1: System & Component Overview
INTRODUCTION
Leviton’s Centura System is the convenient energy management lighting control system with functional
highlights including daylight harvesting, occupancy-sensor automation, desktop lighting control, and
remote controllability.The system consists of a number of components that can be mixed and matched
to create a lighting system with tailored levels of automation and user control. Choose amongst three
wall-mounted controllers, client software and a handheld remote control to adjust Centura system
lighting. Facilities personnel can alter system-wide settings and retain a high level of control over lighting
using the on-screen Leviton Personal Dimmer Administrator.
In This Manual
A number of Centura System scenarios configured to various lighting requirements are presented in the
next chapter, System Design Scenarios, in two basic installation types: closed room and open space.
Installation, Programming, and Testing are covered in the following chapters. The final chapter,
Troubleshooting, is intended to help you understand specific lighting situations, make adjustments
to the system, or solve lighting problems you might face.
SYSTEM OVERVIEW
The Centura product line is a combination of dimming and occupancy sensing systems with features
that enable energy management functions such as daylight harvesting and occupancy sensing, as well
as user convenience features such as a computer interface and remote control.
The following components may be incorporated into the Centura System.The Dimming Power Pack
is the only mandatory component.
• CN100 Centura Dimming Power Pack
• ODC-Series Low Voltage Ceiling-Mount Occupancy Sensor
• ODW-Series Low Voltage Wall-Mount Occupancy Sensor
• ODC0P Photocell
• CN200 Centura Dimming Controller with IR
• CN221 Centura Dimming Controller
• CN220 Centura Switching Controller
• NE200 Infrared Remote Control
• Leviton HTTP Server
• NE100 SmartJack
• Leviton Personal Dimmer (LPD)
• Leviton Personal Dimmer Administrator (LPDA)
Energy Management Features
The CN100 Dimming Power Pack provides 0 to 10VDC fluorescent ballast dimming control and can be
wired to several, peripheral components to add increasing levels of energy management.
Daylight Harvesting
Daylight harvesting means using surrounding ambient (often natural) light to supplement artificial light in
order to keep a constant lighting level while saving electricity. Within the Centura System, daylight
harvesting requires connecting the CN100 Power Pack directly to an ODC0P photocell, light fixtures, and
a dimming controller or client software.The “Light Maintain Level” must be programmed into the Power
Pack either via Leviton-provided software, one of the wall-mounted controllers, or through a handheld
remote control. Once wired, the Power Pack will receive the photocell’s comprehensive light
measurement and, when necessary, adjust its own output to keep steady the Light Maintain Level within
the photocell’s area of detection.

2
SYSTEM & COMPONENT OVERVIEW • SYSTEM OVERVIEW
The Centura System is designed to work intelligently. On a cloudy day, there can be frequent changes in
ambient light. If the Power Pack reacts too quickly to these changes, lights may dim and brighten
frequently.To avoid this potentially distracting effect and provide more constant lighting, the Power Pack
averages quick changes over time instead of reacting to them immediately.
The CN100 attempts to maintain a user-preset level of light in a room by adjusting
attached fixtures to compensate for other available light.The CN100 continuously receives
the measurement of ambient light recorded by the photocell.There are three basic states
from which regulation continually takes place to keep ambient light at the desired level:
1. Measured light level = Light Maintain Level ➔Output to lights remains constant
2. Measured light level < Light Maintain Level ➔ Lights are brightened
3. Measured light level > Light Maintain Level ➔Lights are dimmed
In general, the Power Pack will adjust a load’s output level to the lowest light level called for by an active
input: Leviton refers to this as the Least Light Law. For example, if the Power Pack is turned on (either
manually or by occupancy) and the Light Maintain Level calls for a lower output level than the last preset
manual level, the lights will adjust to the lower Light Maintain Level. On the other hand, if the manual
preset level is lower than the Light Maintain Level and the Power Pack is turned on, the lights will adjust
to the manual preset level—because it’s the lower level in this case. (Note:You CAN manually override
this level.) The Least Light Law is applied at all times, except when overriding Emergency, Service
Switch or Time Clock inputs are activated.
Additional rules of operation:
* If someone enters a room when the lights are off, the lights will remain off if the ambient light level is
already equal to the Light Maintain Level
* To preserve bulb life, even if there is enough outside light coming into a room to meet the Light
Maintain Level without artificial lighting, the lights will remain on at a minimal level. Too much
switching of fluorescent bulbs can diminish bulb life.
Occupancy Sensing
For maximum energy savings, you can monitor an entire area by connecting a number of Leviton
occupancy sensors to a Dimming Power Pack. As a result, lighting will automatically turn off after the
room is left unoccupied. (See Figure 3-3 on Page 20 for Power Pack limitations on the number of
occupancy sensors (and other components) that may be attached.)
Environmental Regulations
The Centura System with the CN100 Dimming Power Pack automatically adheres to California’s Title 24
and will, therefore, automatically revert back to the Light Maintain Level after 30 minutes at a brighter,
manually-set level. If your state does not require a similar standard to be met, you can change this
default by reprogramming any CN100 using either the Leviton Personal Dimmer Administrator from your
computer, or from a CN221 Controller attached to that Dimming Power Pack.
Note: A list of settings that can be programmed by each Centura controller or Personal Dimmer appears
under each component’s heading later in this chapter. When designing a Centura system, make sure
that you order components that enable the system to be configured to the installation’s specifications
and provide the appropriate level of control for users as well as facilities management.
Additional Savings
For additional energy savings, the Centura system can be tied to HVAC systems, which can be turned
off automatically after a room is left unoccupied for a period of time. Centura can also administer a
loadshed policy that reduces electric bills by lowering consumption during utility-defined peak periods.
And it can be driven by a time-clock function that turns lights off automatically.

3
SYSTEM & COMPONENT OVERVIEW • POWER PACK
User Control & Convenience
The Centura System offers several user-interface options, in addition to more standard ON/OFF
and dimming controllers, which make it convenient for a wide variety of applications.
Computer Interface
For maximum user convenience and control, the Centura system can let you control lights right from
your computer. Once the 3 Leviton software programs (LPD, LPDA, and Leviton HTTP Server) along
with the SmartJack are installed, the Centura System uses the building’s existing Ethernet infrastructure
to enable desktop control of brightness and ON/OFF status as well as settings that determine how
lighting will operate. Details on how this works appear in the Desktop Lighting Control section later
in this chapter.
Remote Control
In many cases, especially in conference rooms and oversized offices, a handheld remote control can be
a very practical option. Leviton’s Infrared Remote Control administers on, off, dim, and bright commands,
as well as programming commands: such as Minimum/Maximum Light and Light Maintain Levels.The
remote also has 4 programmable preset brightness levels.
Note:To use a remote control with the Centura System, the CN200 Dimming Controller with Infrared
must be installed at the same location.
DIMMING POWER PACK
There’s one component every Centura System must have: a Dimming Power Pack. (See Figure 1-1.)
The Power Pack is the interface between lights and Leviton occupancy sensors, photocell, and various
control interfaces.The CN100 is suitable for use with dimmable electronic ballasts using a 0 to 10VDC
dimming signal, such as Advanced Mark VII, OSRAM Sylvania Quicktronic Helios, and ESI. LPDA
software supports building management functions such as time clock, emergency, and loadshed.
It also features a low-voltage relay to HVAC systems.
Figure 1-1: CN100 Centura Dimming Power Pack
Centura’s Dimming Power Pack is designed to be part of an
energy management lighting system and, therefore, conforms
to California’s Title 24 standards.To conserve energy, lighting
automatically reverts back to the Light Maintain Level after 30
minutes at a brighter, manually-set level.To override this default
setting, reprogram the Power Pack to retain manual adjustments
long-term using either the Centura Dimming Controller or the
Leviton Personal Dimmer Administrator.
Although you do program settings through controllers or
computers attached to the Power Pack, you are actually
changing settings on the Dimming Power Pack itself. Some of
these features must be programmed to each Dimming Power
Pack individually, and others only through the Leviton Personal Dimmer Administrator. Please note
that each Centura input device and application offers a unique set of programmability options: a listing
of programmable settings appears under each component’s heading and programming instructions
can be found in Chapter 4.

4
SYSTEM & COMPONENT OVERVIEW • POWER PACK
Programmable Power Pack Settings
1. Maximum Light Level
The maximum Power Pack output, which can be set lower than the maximum ballast output,
is adjustable between 60% and 100%.
2. Minimum Light Level
The minimum Power Pack output, which can be set greater than the minimum ballast output,
is adjustable between 0% and 40%.
3. Light Maintain Level
The level of light that the photocell measures and that the Centura System will try
to constantly maintain when using the daylight-harvesting feature.
4. Unoccupied State
Any time the occupancy sensor detects an absence of motion, it can be set to either
turn the lights off or dim them to the Minimum Light Level.
5. Time Clock
End of day sequence of light settings.
6. Dim/Bright
The speed at which the lights are brightened or dimmed to a new, selected light level.
7. ON Fade Rate
The speed at which the lights brighten to the Light Maintain Level.
8. OFF Fade Rate
The speed at which the lights dim to off.
9. Manual Timeout
When this setting is active, manual adjustments to lighting will only remain active for 30 minutes,
at which point they will revert to the Light Maintain Level if it is dimmer than the manually-adjusted
level.This setting can be disabled.
10. Loadshed Level
When this setting is actived, lights will be reduced either at the 25% default level
or at the selected percentage.
Note:There is a limit to the number of peripheral devices that may be attached to a single
Centura Dimming Power Pack. Please refer to Figure 3-3 on Page 20 for more details.
Power Pack Inputs
The CN100 Dimming Power Pack may receive several inputs at any one time and it prioritizes
these inputs in the following order.
1. Service (Air Gap) Switch: keeps lights off so service can be performed.
2. Emergency: lights turn to 100% brightness when system goes into emergency mode.
3. Program Mode: During reprogramming of default values and addresses, service switch
and emergency mode settings will always take precedence.
4. Occupancy On/Off: turns lights on and keeps them on as long as occupancy is detected
by sensor, and off when no motion is detected.
5. Manual Off: when a user turns lights off using a switch, remote control, or computer.
6. Time Clock: lights will adjust based on time clock settings.
6. Loadshed: decreases load output by a user-configurable percentage during loadshed periods.
7. Light Maintain Level: lighting adjusts its own output to maintain a user-set light level within
a photocell’s area of detection.
8. Manual On / Brighten / Dim: when a user adjusts lights using a switch, remote control, or computer.

5
SYSTEM & COMPONENT OVERVIEW • OCCUPANCY SENSORS
Power Pack Specifications
Input Voltage: 120 to 277VAC ± 10%
Input Current: 500mA
Power Consumption: 60W @ 120VAC, 106W @ 277VAC
Output: Isolated low voltage: + 24VDC @ 500mA
Primary Relay Rating: 2400VA @ 120VAC and 5500VA @ 277VAC fluorescent
Size: 4.3 x 4.0 x 3.6in. (10.92 x 10.16 x 9.14cm)
OCCUPANCY SENSORS
Basically, occupancy sensors turn lights on when someone enters a room and automatically off again
after they leave and a certain period of time has passed. This time-out period is self-adjusted by the
sensor itself and can be manually adjusted within a range that varies by sensor model. Using occupancy
sensors in a lighting system where energy savings are a key goal is a smart idea because automatic-off
lighting can reduce electricity bills by ensuring that lights are not inadvertently left on. Although most
installations can benefit from the use of occupancy sensors, there may be occasions where always-on
lighting is desired and, therefore, occupancy sensors should not be incorporated into the Centura
System.
Any Leviton ODC- or ODW-prefixed low voltage occupancy sensor (Figures 1-2 and 1-3) can be
incorporated into a Centura System.This range of models encompasses sensors with a number of
differentiating features. Sensors may use infrared, ultrasonic, or multi-technology—which encompasses
both—to detect motion. A variety of field of views are also available.
Figure 1-2: ODC-series Figure 1-3: ODW-series
Occupancy Sensor Occupancy Sensor

6
SYSTEM & COMPONENT OVERVIEW • OCCUPANCY SENSORS
Figure 1-4: Occupancy Sensor Placement
1ODCXX-M sensor used to provide 360° coverage of space while combining maximum ultrasonic
sensitivity with large-motion infrared sensing that prevents false triggers from air conditioning.
2ODCXX-M sensor used to provide coverage in area A that sensor 1 could not reach due to
the shape of the room. Passive infrared sensing prevents false triggers from hallway activity.
3ODWXX-M sensor can be mounted in corner and angled so it won’t react to motion outside room,
while its 110° view picks up all motion within the room. Using a multi-technology model is further
assurance that false-ons will be avoided.
4ODCXX-U sensor with 180° view picks up small motions with ultrasonic technology, while limiting the
view so that activity at the other end of the hall does not cause lights to turn on unnecessarily.
When selecting occupancy sensors, keep in mind that the Dimming Power Pack has its own
built-in HVAC relay, so the sensor DOES NOT have to have one. Also note that the Power
Pack provides power to Leviton occupancy sensors, so a separate box is NOT required.
Note: For additional information regarding occupancy sensor selection and placement,
contact a Leviton Representative.
Occupancy Sensor Specifications
Product ratings and specifications vary based on selected models and can be found in the Leviton
Lighting Controls or D-502-series or later catalogs, as well as within product packaging.
ODC-series
Diameter: 4.53in. (11.50cm)
Depth: 1.40in. (3.56cm)
ODW-series
Size: 6.58 x 2.73 x 3.72in. (16.7 x 6.9 x 9.4cm)
Selection & Placement
Sensors can be mounted in the middle of walls,
in corners, or on ceilings. In order to ensure that
motion is detected throughout an entire space,
occupancy sensors must be intelligently placed.
With a variety of models from which to choose,
care should be taken to select the proper
combination of sensors to cover an entire area
with motion detection. Factors to be considered
include usage patterns, false-ons from nearby
traffic, and airflow that can falsely register as
motion. Make sure you use a sensor with the
proper range for the square footage needing
coverage. Figure 1-4 is an illustrative example
of occupancy sensor placement.

7
SYSTEM & COMPONENT OVERVIEW • PHOTOCELL
PHOTOCELL
Centura’s ODC0P photocell (Figure 1-5) monitors ambient
light levels and sends this information to the Power Pack,
which adjusts fixtures to provide constant-level lighting.
This is called daylight harvesting and it means that lighting
in a room with windows—or significant, artificial ambient
light—will automatically brighten or dim depending on how
much light the photocell detects.
Figure 1-5: ODC0P Centura Photocell
Placement
The placement of each photocell is a key factor in determining
how daylight harvesting will work.The photocell measures light from any light source in the visible
spectrum that is within a 60° range. Since light reflects off ceilings, walls, floors and furniture, ambient
light levels can vary throughout different areas in a room. In order to ensure that lighting brightens and
dims appropriately, care must be taken in choosing a mounting location. Leviton recommends that the
photocell be mounted directly above the workspace where lighting is most critical. Only one photocell
should be installed per Power Pack.
When mounting a photocell: pick one
area per room that requires optimal
lighting and place the photocell
accordingly.Then supplement other
areas with tabletop or floor lighting.
(See Figure 1-6.)
Figure 1-6: Photocell Placement
Installing a photocell, with a Power Pack, can save electricity in any indoor space with windows,
or with substantial ambient light from adjacent indoor spaces. On the other hand, putting
a photocell in a room without windows, especially an enclosed one, is of little value.
Photocell Specifications
Input Voltage: 24VDC
Input Current: 10mA
Power Consumption: 1W
Light Sensitivity: 0 to 70 foot-candles
Output Voltage: 0 to 10VDC
Diameter: 2.51in. (6.4cm)
Depth: 0.99in. (2.5cm)
Centura
Photocell Fluorescent
Fixtures

8
SYSTEM & COMPONENT OVERVIEW • DIMMING CONTROLLER
CENTURA DIMMING CONTROLLER WITH IR
The CN200 Dimming Controller with IR (Figure 1-7) is a five-button wall
station that can be used to turn fixtures on, off, and set brightness levels
either manually or via hand-held remote control.The unit has five buttons:
On, Off, Dim, Bright, and Max (or full bright).The Decora style CN200
features five labeled buttons and ships as a white switch and wallplate
combination, with an ivory color change kit for the snap-on switch.
Figure 1-7: CN200 Centura Dimming Controller with IR
The remote control that works with the CN200 controller can be used from
40 feet away from this station, at a 100° angle. (Turn to Page 9 for more
details on the remote control unit.)
The CN200 is the right choice where the flexibility to adjust lighting
manually or via hand-held remote is desirable, or where remote controllability is required. Since these
manual adjustments may override automatic adjustments made by Centura’s photocell or occupancy
sensor(s), keep in mind that in providing user control they may override energy management settings.
The CN200 can be used to program
the following settings:
• Minimum Light Level
• Light Maintain Level
CENTURA DIMMING CONTROLLER
The CN221 Dimming Controller (Figure 1-8) is a dual-rocker wall switch
that can be used to manually turn fixtures on, off, and set their brightness
levels. The large, outside rocker switches lights on and off, while the small,
inset rocker is used to adjust the level of brightness. LED’s indicate
selected brightness setting.This Decora-style switch comes in white
with a matching wallplate, and with an ivory color change kit for
the snap-on switch.
Figure 1-8: CN221 Centura Dimming Controller
The CN221 is the right choice where standard, manual lighting control,
including dimming, is desired but remote controllability is not. Since
these manual adjustments may override automatic adjustments made
by Centura’s photocell or occupancy sensor(s), keep in mind that in
providing user control they may override energy management settings.Where the ability to use a hand-
held remote control is desirable, the CN200 Dimming Controller with Infrared should be installed.
The unit provides a Service Switch to temporarily cut power to fixtures while lighting is being serviced.
The Dimming Controller can be used
to program the following settings:
• Maximum Light Level
• Minimum Light Level
• Light Maintain Level
• Unoccupied State
• Manual Timeout
CN221 Specifications
Input Voltage: 24V
Input Current: 24mA
Power Consumption: 1W
Size: 4.13 x 2.38 x 1.59in. (10.5 x 6.1 x 4.0cm)
CN200 Specifications
Input Voltage: 24V
Input Current: 24mA
Power Consumption: 1W
Infrared Range: 40 feet
Angle of Acceptance: 100°
Size: 4.13 x 2.38 x 1.59in. (10.5 x 6.0 x 4.0cm)

9
SYSTEM & COMPONENT OVERVIEW • REMOTE CONTROL
CENTURA SWITCHING CONTROLLER
The CN220 Switching Controller (Figure 1-9) is a wall switch for turning
fixtures on and off. It cannot be used to adjust brightness levels.This
Decora-style rocker switch comes in white with a matching wallplate,
and with an ivory color change kit for the snap-on switch.
Figure 1-9: CN220 Centura Switching Controller
The unit provides a Service Switch to temporarily cut power
to fixtures while lighting is being serviced.
Certain areas, such as entranceways, require full lighting whenever
lights are on.The CN220 is the right switch for such non-dimming loads
that are part of a Centura System. Since the CN220 is a manual switch
only, if remote controllability is required, you can select the CN200
and use it as merely an on/off switch.
Note:The CN220 has no programming capabilities.
CN220 Specifications
Input Voltage: 24V
Input Current: 24mA
Power Consumption: 1W
Size: 4.13 x 2.38 x 1.59in. (10.5 x 6.1 x 4.0cm)
INFRARED REMOTE CONTROL
Leviton’s NE200 Infrared Remote Control (Figure 1-10) has been
specifically designed to allow lighting control and programming from up
to 40 feet from a CN200 Controller.The infrared remote control has four
programming buttons, four preset buttons, and four lighting control buttons:
On, Off, Dim and Bright.The remote control is the only component that can
program and select specific “preset” light levels. So, for example, someone
who works on their computer a few hours each day and to reduce glare
prefers a specific light level dim enough for that purpose yet not so dark as
to make other tasks impossible, could set Preset 1 to that exact level.
Figure 1-10: NE200 Centura Infrared Remote Control
The NE200 can be used to program the following settings:
• Minimum Light Level
• Maximum Light Level
• Light Maintain Level
• Preset Light Levels
Note: For instructions on how to use the remote to program the Centura System, see the User Guide.
Remote Control Specifications
Input Voltage: 6VDC
Batteries Required: 4 AAA (sold separately)
Size: 6.8 x 2.0 x .84in. (10.5 x 5.1 x 2.1cm)

10
SYSTEM & COMPONENT OVERVIEW • DESKTOP LIGHTING CONTROL
DESKTOP LIGHTING CONTROL
With Centura, you have the option to control lighting right from the desktop by linking the Leviton lighting
control network (LCnet) and a building’s Intranet.There are two levels of control: user and administrator.
The average user can utilize the Leviton Personal Dimmer, a new software program installed on their
computer, while building managers and facilities personnel can control lights and settings across the
entire network using the Leviton Personal Dimmer Administrator. In addition to these Personal Dimmers,
you must also install Leviton HTTP Server software and the NE100 SmartJack. Note: Since the software
is likely to be installed after the initial installation of other components is completed, this manual covers
installation of only the SmartJack in detail and not the software. Software installation is covered in more
detail in the User Guide.
Specifically, desktop control is enabled by installing server software, connecting a SmartJack to the
server host, and installing client software on as many IBM-compatible desktop computers as you like.
Using the existing Intranet infrastructure eliminates the need for additional hardwiring.The system allows
you not only to dim and brighten lights and turn them on and off, but also to adjust the settings that
direct automatic functions such as daylight harvesting. On one hand, numerous workstations can be
set to control lighting attached to a single Power Pack. On the other hand, a single workstation can be
configured to access multiple Power Packs and, therefore, multiple lighting subsystems.
Here’s how it works: A 2-way connection is formed between each computer and the lighting
controls in an office through the building’s existing network infrastructure.The SmartJack
translates messages between the low voltage lighting system and software on the
designated Centura Dimming System server (called Leviton HTTP Server) through a
serial port. Leviton HTTP Server transfers information between the SmartJack and the
building Intranet (using HTTP).
For example, suppose you want to brighten the lights in your office from your computer. If you keep
the Leviton Personal Dimmer open, on your desktop, the fastest way is to move the Quick Slider to a
new position.The client software now sends an HTTP message to the server software over the building
Intranet, which is routed just like any other HTTP message from a networked computer.The server
software receives the message, converts it, and sends a message on its serial port to the SmartJack.
The SmartJack translates the message from the serial protocol to the LCnet protocol and sends it to
the Power Pack.The Power Pack adjusts the lights based on the message content. Figure 1-11
illustrates this process.
Dimming Power Pack
receives message
and changes light level
Dimming
Power Pack
Power Pack sends
message with new
level, and the process
is reversed
Fixture
LCnet
Leviton Control Network (LCnet)
User adjusts
light level
from onsite PC
or offsite laptop Building
Ethernet
HTTP
HTTP
serial
Fire Wall/VPN
Dial-up
Computer running
Leviton Personal
Dimmer sends HTTP
message to server
SmartJack
SmartJack
translates
message
OR
Server running Leviton
HTTP Server translates HTTP messages
and sends serial message to SmartJack
56
4
3
1 2
Figure 1-11: LCnet Communication Flow

11
SYSTEM & COMPONENT OVERVIEW • SMARTJACK
This process also works in reverse.The Power Pack sends a message over the lighting
control network and the SmartJack recognizes that it must be sent to the server. It
translates the message and sends it out in serial format to the server.The server
software then translates the message to HTTP protocol and sends it via the building Intranet.
Finally, the client software on your computer receives the message and updates the screen with
the new light level.
Installing Centura desktop lighting control is an especially good choice where there are few options for
wall-mounting switches yet occupants need the ability to adjust lighting. In fact, the Leviton Personal
Dimmer offers more convenient control over lighting than any of the wall-mounted or remote controllers
because you can do it without moving from your desk. Note: Since manual adjustments may override
automatic adjustments made by Centura’s photocell or occupancy sensor(s), keep in mind that
providing user control may allow users to override energy management settings.
Note: If you need the system to retain brightness settings for longer than 30 minutes at a time (for
example, to adhere to California’s Title 24), you must use a Leviton Personal Dimmer or the
CN221 Dimming Controller to reprogram the system.
System Requirements For Leviton Software
Operating System:Windows 95/98 or Windows NT 4.0 See website for latest OS compatibility.
Hardware Requirements: CD-ROM drive, Ethernet card, HTTP support
LEVITON HTTP SERVER
The function of the server software (called LPDS) is to translate messages between the HTTP protocol
and the lighting control network. Leviton HTTP Server contains a configuration file with data on users
as well as server settings and can display this information. A file within Leviton HTTP Server maps
each computer to the correct Power Pack address so that only those authorized to control certain
lights can do so.
Leviton HTTP Server must be installed on a computer attached to a SmartJack,
and kept running at all times.
SMARTJACK
The SmartJack is a low voltage Class II wiring device that installs in
a standard wallbox.To set up a Centura lighting control system with
desktop control, you must install a SmartJack (Figure 1-12) attached to
a computer running Leviton HTTP Server.Two LED’s on the face of the
SmartJack indicate communication status.The SmartJack comes with a
matching white Decora wallplate, an ivory color change kit for the jack
insert, a cable for connecting the SmartJack to a personal computer and
software. Software upgrades will be posted on Leviton’s Centura Website
Figure 1-12: NE100 SmartJack
SmartJack Specifications
Connectivity: RJ11 to DB9 cable
Input Voltage: 24VDC
Input Current: 40ma
Power Consumption: 1W
Size: 4.41 x 1.76 x 1.69in. (11.2 x 4.5 x 4.3cm)

SYSTEM & COMPONENT OVERVIEW • LPD DIMMER
Navigation to the
Settings Screen
Lighting
Adjustments
LEVITON PERSONAL DIMMER
The Leviton Personal Dimmer (LPD) is computer software that interfaces with the Centura lighting
system. Figure 1-13 shows the main LPD screen.The LPD must be installed on every computer on
which lighting control is desired, and can be configured to control the lights above that user’s
workspace.The LPD has a number of buttons for adjusting lights to real-time individual needs—
overriding automatic settings. For quick light level changes, the LPD can be accessed by right
clicking and adjusting the familiar, volume-type slider. (See Figure 1-14.)
Figure 1-13:
Main Leviton
Personal
Dimmer
Screen Figure 1-14:
Leviton Personal
Dimmer Quick Slider
The LPD also displays information about the status of the Power
Pack. In addition to numbered readouts (of light levels, etc.) and
status indicators (for additional parameters), the slider position
reflects the current light level.The SET button opens another
window (Figure 1-15) where light levels and additional modes can
be adjusted. Certain parameters, although they may be visible to
any user, may only be adjusted by an administrator.
Figure 1-15:
Leviton Personal Dimmer Settings Screen
The Leviton Personal Dimmer can be used
to program the following settings:
•Maximum Light Level
•Minimum Light Level
•Light Maintain Level
•Unoccupied State
Because using a computer to adjust lighting
levels and settings may be new to most
users; Leviton provides a separate User
Guide to familiarize users with Centura
lighting concepts and how to use the LPDA
to achieve the desired lighting.
12

13
SYSTEM & COMPONENT OVERVIEW • LPDA
LEVITON PERSONAL DIMMER ADMINISTRATOR
The Leviton Personal Dimmer Administrator (LPDA) is software that allows the lighting administrator to
view and control the whole system from a single location, without having to run to different stations.The
LPDA interacts with the HTTP Server to obtain information on all nodes in the system (see Figure 1-16.)
and generates printouts. It also activates emergency, loadshed, and time clock functions.
Figure 1-16:
Main Leviton Personal Dimmer
Administrator Screen
The LPDA is a tool that
administrators can
use to setup addresses and adjust
settings during initial setup, and
later to respond to user questions
and requests. Any adjustments a
user can make from their own PC
can be made by an administrator
using the LPDA.
Because using a computer to
configure and adjust lighting may
be new to many building and
facilities administrators, Leviton
provides a separate User Guide to familiarize administrators as well as users with Centura lighting
concepts and controls. On-screen help will also be available.
The Leviton Personal Dimmer Administrator can be used to program the following settings:
•Maximum Light Level
•Minimum Light Level
•Light Maintain Level
•Unoccupied State
•Manual Timeout
•Addresses
•Light Regulation Level
•Loadshed Level
•Fade Rates

14
SYSTEM DESIGN SCENARIOS
Power
Pack
Photocell
LPD
Occ. Sensor
Dimming
Controller
w/IR
Remote
Control
SmartJack
Chapter 2: Centura System Design Scenarios
To help you understand more fully how to select the right combination of Centura products to meet your
lighting control requirements; we give you a number of representative Centura System scenarios. Each
scenario is geared towards achieving specific goals within a certain type of space.
The scenarios are broken down into two types of installations: closed room and open space. For
illustrative purposes, a closed room is a typical room or office with a window to the outside. If you are
installing an energy management system in an office or other closed room that has no such window, you
will probably want to leave out the photocell. On the other hand, we define an open space as a large
area where there is little (if any) natural light, and plenty of cubicles. In general the lack of wall space in
such areas makes standard wall switches impractical and PC control desirable. Note that the wall
controller selected in each scenario varies.
Scenario 1: Energy Management System with Maximum User Control for Closed Rooms
In a closed room with at least one window to the outside, you can utilize the fullest range of energy
management features: including a photocell and occupancy sensors. (See Figure 2-1.) In an office
where lighting needs may change with the task at hand—such as doing layout on a computer or
projecting a presentation—you can supplement automatic lighting control with a handheld remote
control, a wall-mounted switch, as well as a Leviton Personal Dimmer on the computer.
Centura components needed for this system include:
1. CN100 Centura Dimming Power Pack 6. Leviton Personal Dimmer
2. Leviton Occupancy Sensor 7. Leviton Personal Dimmer Administrator
3. ODC0P Photocell 8. Leviton HTTP Server
4. CN200 Centura Dimming Controller With IR 9. NE100 SmartJack
5. NE200 Infrared Remote Control
Figure 2-1:
Energy Management System
Scenario with Maximum User Control
for Closed Rooms
Scenario 2: Basic Energy Management System for Closed Rooms
As long as there’s a window to the outdoors, you can incorporate all Centura energy management
features in a system that provides automatic lighting control.The occupancy sensor and photocell take
care of the automatic on/off as well as maintaining the Light Maintain Level. A CN221 controller is added
to give the user the ability to set light levels and for the occasional, manual dim/bright or on/off
adjustment.This scenario is ideal for offices where the user doesn’t need to change the level often
and energy savings are a goal.
Centura components needed for this system include:
1. CN100 Centura Dimming Power Pack 3. ODC0P Photocell
2. Leviton Occupancy Sensor 4. CN221 Centura Dimming Controller

15
SYSTEM DESIGN SCENARIOS
Scenario 3: Dimming System with Maximum User Control for Closed Rooms
This scenario is suited to a basic room where the user wants full control over all lighting and an
automated system is not desired. For instance: an Art Director’s office where a variety of light levels are
necessary to perform daily tasks such as doing layout on the computer and making presentations to
executives. Because no automation is required, this configuration requires no occupancy sensor or
photocell.The user will have complete and remote control over all lighting without any unoccupied
“timeouts”or automatic light adjustments.
Centura components needed for this system include:
1. CN100 Centura Dimming Power Pack 5. Leviton Personal Dimmer Administrator
2. CN200 Centura Dimming Controller With IR 6. Leviton HTTP Server
3. NE200 Infrared Remote Control 7. NE100 SmartJack
4. Leviton Personal Dimmer
Scenario 4: Energy Management System for Open Spaces
This setup is ideal for the average “cube farm”or open space where the absence of walls makes it
more practical for users to control lighting via computer. In this scenario, a Leviton Personal Dimmer is
loaded onto each PC, which is given control over only one load bank. Occupancy sensors are added
to make sure that no load is inadvertently left on, therefore conserving energy and saving money.
(See Figure 2-2.) Leviton software can also be used by building management to track how individuals
are using lighting.This information can be used to devise methods for achieving even greater
cost savings.
Centura components needed for this system include:
1. CN100 Centura Dimming Power Pack 4. Leviton Personal Dimmer Administrator
2. Leviton Occupancy Sensor 5. Leviton HTTP Server
3. Leviton Personal Dimmer 6. NE100 SmartJack
Power Pack Occ Sensor Fluorescent Fixture
SmartJack
Computer running
LPDA and HTTP Server
Computer running Leviton Personal Dimmer
Figure 2-2:
Energy Management
System Scenario for
Open Spaces

16
SYSTEM DESIGN SCENARIOS
Scenario 5: Dimming System with Maximum User Control for Open Spaces
If you don’t want automatic light adjustments, you can use Centura as a comprehensive dimming
system. In an open area, especially with cubicles, Centura is a great choice because it provides a
Leviton Personal Dimmer that can be loaded onto individual PC’s.This allows occupants to adjust their
lighting without walking to a wall switch, which may be across a large room and bunched up with so
many other switches as to be hard to distinguish.The CN200 must be selected as a controller as
long as remote controllability is also desired.
Centura components needed for this system include:
1. CN100 Centura Dimming Power Pack
2. CN200 Centura Dimming Controller With IR
3. NE200 Infrared Remote Control
4. Leviton Personal Dimmer
5. Leviton Personal Dimmer Administrator
6. Leviton HTTP Server
7. NE100 SmartJack
Non-Dimming Loads
In reality, non-dimming loads may be part of any lighting scenario, especially in hallways,
corridors and entryways. If this is the case in your installation, install Centura’s basic
ON/OFF switch, the CN220, to control non-dimming fixtures.

17
INSTALLATION • PRE-INSTALLATION CONSIDERATIONS
Chapter 3: Installation
WIRING & OTHER PRE-INSTALLATION CONSIDERATIONS
Before you can begin installing individual components, you must lay the wiring across which the Centura
components will communicate.To do this you’ll need to understand a few, key concepts and basic facts.
You must also understand how addresses factor into the Centura equation.This section, combined with
any job drawings you may have in your possession, should give you all you need to know.
About LCnet Wiring
Centura is based on a low-voltage communication bus called the Leviton Control Network (LCnet),
which must be wired in accordance with a some basic principles (see Figure 3-1).The LCnet is a
combination of industry-standard and custom technologies that sends digital information between
devices via a Controller Area Network (CAN): a standard in the automobile and industrial automation
industries for low-voltage, high-speed control networking.
Leviton has developed a custom communication protocol that works “on top of” CAN to
ensure that every Centura device uses the same message structure.
CAN technology is based on a bus structure (using a differential signal) where all devices are
connected to one twisted pair of wires. A differential signal is simply the difference in voltage between
two wires in a twisted pair of wires.To communicate, a device sends a message on the bus
that all other devices can hear. Every device on the LCnet is addressed, so that only the device(s) a
message is intended for will process it.
Figure 3-1: LCnet Wiring Schematic
Notes: (1) Leviton recommends using Cat-5 twisted pair wire for best performance.
(2) Every LCnet device must be connected as a tap to the LCnet wire.
SmartJack
Drop Length
≤29 feet
Bus Length ≤1640 feet
CAN_L-blue/white
CAN_H-blue
222
00 11
nn 15 15
Terminated
Terminated
Dimming Power PackController Occupancy Sensor Photocell