Specifications

Crestron Commercial Lighting Design Guide
60 Doc. 4775B | Crestron.com
GLS-LOL and GLS-LCL
Crestron Photocell Light Sensors are designed for
daylight harvesting applications to control the balance of
natural and artificial lighting in an indoor space. By
harnessing natural daylight from windows and skylights,
electrical lighting can be turned off or dimmed, reducing
energy usage while maintaining a consistent light level for
a more efficient and comfortable work space. Outdoor
lighting may also be turn off and on automatically using a
photocell light sensor.
The GLS-LCL is used to monitor and adjust based on the
reflected light levels at a certain location, such as a desk.
The GLS-LOL is used to look at a window and monitor
how much light is entering from outside.
Model
Type Location Field of View Light Sensitivity
GLS-LCL
Closed-
Loop
On Ceiling Above Work
Area
60 degree cone, aimed straight
down
0 to 70 ft candles
GLS-LOL
Open-Loop
On Ceiling Near
Window
60 degree cone, aimed 45 degrees
down
3 to 6000 ft
candles
Partition Products
GLA-PART
Surface mount partition sensor easily connects to Crestron GLS-SIM or control processor to manage divisible
room environments.
Sensor Interfaces
GLS-SIM
The GLS-SIM is a compact interface device designed to allow Crestron
Green Light sensors to connect directly to a Cresnet control network. The
GLS-SIM installs easily at the sensor location, mounting conveniently
inside the electrical box or exposed above the ceiling. Wiring connections
to the network and sensor are facilitated using miniature screw terminals.
The GLS-SIM is compatible with Crestron GLS-series sensors, as well as
with most 24 Volt-powered sensors from any manufacturer. Up to 1A at
24 Vdc power is available to support multiple sensors in parallel. The
GLS-SIM actually includes two sensing inputs, each capable of sensing a
contact closure, logic level, or 0-10V signal. When used with a Crestron
IPAC or iLux system, setup is simplified using onboard DIP switches to
select the sensor type (e.g., occupancy, photocell, partition, etc.) and
operating mode (i.e., normally-open or normally-closed).
GLS-LCL LS-LOL