PD2794 02/2017
Page 3
Understanding Low Voltage Load Capacity
The room controller is capable of providing a source of 24VDC to power the connected low voltage devices such as switches,
sensors and wireless transmitters.
The room controller’s current capacity is 250 mA. Since the control components require
different amounts of current to operate properly, the following table will help to determine how many low voltage devices can be
connected to a single room controller regardless of the RJ45 port in which the device is connected. If two or more room
controllers are connected together, the capacity is determined for each room controller based on the control devices that are
actually connected into that specific room controller. The maximum capacity per room controller is 30 Loads. Below is the
correlation in regards of current requirements per low voltage device.
Switches, Daylight Photocell, and PIR Occupancy Sensor = 1 Load
PIR only Occupancy sensor with RP option = 2 Loads
Dual Technology and Ultrasonic Occupancy sensor = 3 Loads
Dual Technology and Ultrasonic Occupancy sensor with RP option = 4 Loads
NOTE: Only one daylight sensor can be connected in each room/zone
Self-Configuration
The
room controller’s sequence of operation will automatically reconfigure as devices are connected as described in the
following sections. Note that self-configuration will automatically be disabled once the room has been manually configured.
See
Manual Configuration section.
Occupancy Sensors
The room controller is compatible with any Hubbell Wiring Device-Kellems low voltage occupancy sensor. An RJ45 wiring
adapter (
sold separately
) is required to make the sensor compatible with the connection to a RJ-45 port in the room controller.
See
Figure 3
and HBLRJ45A10 installation instructions
. This adapter is color coded to match the flying leads on the sensors.
An occupancy sensor connected to a room controller will be recognized after the first time it cycles occupancy.
When ONLY an occupancy sensor is connected to the room controller, the room controller will set its operation mode to Auto
ON / Auto OFF. Once a smart switch is connected to the room controller, the operation mode will automatically switch to
Manual ON / Auto OFF (vacancy mode). To change one or more load(s) to Auto ON operation see Manual Configuration
section below.
Figure 3
