Installation Instructions
LMIO-301
Digital Lighting Management
Photocell Input Module
Specifications
Voltage ................................................................................................24VDC
Current Consumption ........................................................................... 20mA
Power Supply............................................... WattStopper Room Controllers
Connection to DLM Local Network...........................................2 RJ-45 ports
Analog Input Voltage Range
Input 1 (terminal 9) ....................................................................... 0-5VDC
Input 2 (terminal 10) ................................................................... 1-10VDC
Supply Output @24VDC +/- 15%.............................................................. 5mA
Environment ...................................................................For Indoor Use Only
Operating Temperature.................................... 32° to 104°F (0° to 40°C)
Storage Temperature ......................................23° to 176°F (-5° to 80°C)
Relative Humidity........................................... 5 to 95% (non condensing)
Other:
RoHS compliant
UL2043 Plenum rated
5-year warranty
UNIT DESCRIPTION
The LMIO-301 photocell input module is an accessory for a
networked Digital Lighting Management (DLM) installation
that allows an LMSM segment manager to read ambient
light levels for use in controlling exterior lighting or interior
lighting installed in brightly day-lit spaces such as atriums.
The LMIO-301 works in conjunction with either the LMPO-
200 exterior or LMPS-6000 skylight low voltage photocell
heads.
OPERATION
The LMIO-301 operates on Class 2 power supplied to a DLM
local network by one or more room controllers or an LILM
panel. It transmits light levels over the segment network
as read from one of the remote analog LMPO or LMPS
photocell sensors. The LMIO-301 converts the analog signal
from the photocell sensor to a digital signal that is shared
across the network. The segment manager controls the
lighting based on user-defined setpoints and time delay
settings.
APPLICATION
The LMIO-301 photocell input module is an ideal solution
for any application where exterior lighting needs to be
controlled based on actual ambient exterior light levels
such as parking, site and landscape lighting. Applications
with large expanses of skylight, clearstory or atrium glazing
can also benefit from controlling lighting based on ambient
light entering the building through the glazing.
When controlling outdoor lighting, the LMPO-200 photocell
head mounts on the roof of the building facing North. The
LMPO-200 photocell head is waterproof and has a built in
hood to shield the lens from direct sunlight.
The LMPS-6000 photocell head is designed for indoor
applications with direct exposure to extremely high light
levels as would be present adjacent to the glass in an
atrium, skylight or clearstory.
For full operational details and more features
of the Digital Lighting Management (DLM
System), see the DLM System Installation Guide
available at www.wattstopper.com
INSTALLATION SHALL BE IN
ACCORDANCE WITH ALL
APPLICABLE REGULATIONS,
LOCAL AND NEC CODES.
For Class 2 DLM devices - To be
connected to a Class 2 power source
only.
For Class 2 Device Wiring Only –
Do Not Reclassify and Install as
Class 1, or Power and Lighting
Wiring.
Wire connections shall be rated
suitable for the wire size (lead
and building wiring) employed.
#20 AWG up to 250 feet
#18 AWG up to 1000 feet
Class 2 wiring
LMPO-200
Sensor
Watertight J Box
North
Sensor Hood
To DLM Local Network
LMIO-301
#20 AWG up to 250 feet
Class 2 wiring
LMPS-6000
Sensor
Skylight
Well Vertical
Orientation
Option
To DLM Local Network
LMIO-301
LMPO-200 Outdoor Application
LMPS-6000 Skylight Application
Warranty Information
WattStopper warranties its products to be free of defects in materials and workmanship for a period of five (5) years. There are
no obligations or liabilities on the part of WattStopper for consequential damages arising out of, or in connection with, the use
or performance of this product or other indirect damages with respect to loss of property, revenue or profit, or cost of removal,
installation or reinstallation.
1/2011
13132r3
Please
Recycle
2800 De La Cruz Blvd.
Santa Clara, CA 95050
Phone: 800.879.8585
www.wattstopper.com
