Carmanah Technologies Corp. | 250 Bay St, Victoria, BC V9A 3K5, Canada | 1-877-722-8877 |
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G SERIES USER MANUAL
2.0 INTRODUCTION
2.2 Ambient Brightness Sensor
Each Energy Management System (EMS) in a G Series is equipped with an ambient brightness sensor on its
circuit board. Through a combination of a light pipe attached to the circuit board and a window on the top of the
cabinet, the G Series can detect ambient light levels outside the cabinet. The G Series uses that data to
determine whether it is day or night, and the amount of AAA (Ambient Auto Adjust) to apply (if enabled). Keep the
ambient brightness sensor clean and clear of debris to ensure accurate light measurements.
Dual EMS G Series systems have a second antenna and ambient brightness sensor window
2.3 Radio Communication
Radio communication between products is standard in R820-G and SC315-G systems and is an option in R829-G
systems. In addition to the G Series, Carmanah also manufactures smaller, self-contained E and F Series
products in which the solar panel, batteries, EMS, and third-party devices reside together in a “solar engine”
enclosure. Wireless communication works seamlessly between products regardless of whether they are E, F, or
G Series. R820 and SC315 systems will also activate each other when a pedestrian pushes the pushbutton.
The radio modules use 2.4GHz DSSS (Direct Sequence Spread Spectrum) with an AES128 encrypted signal and
have been tested with clear line of sight (with no nearby interference or reflected signals) to 1,000 feet (305
meters). Performance is reduced if clean line of sight is not possible.
The G Series products use a low-profile antenna that does not require any special orientation or adjustment and
is resistant to vandalism.
To increase the reliability of radio communications, the different units should be located and
oriented so that there is direct line-of-sight between the antennas and so that structures or
sources of interference (large signs, overpasses, powerlines, etc.) are as far away from the
communication path as practical.
2.4 Label Explanation
The G Series identification labels appear in two formats—one for solar-powered and one for AC-powered. The
information appearing on the labels is described below:
Ambient Brightness Sensor Window
Dual EMS Only
Antenna
