ETC Echo Light Sensor - Manual (Page 2)

E T C I n s t a l l a t i o n G u i d e
Echo™ Light Sensor
Echo Light Sensor Installation Guide Page 2 of 12
Remoting the Light Sensor Head
The Light Sensor Controller provides termination for up to two remote Light
Sensor Heads. Each Light Sensor Head must be separately wired to the
controller using no more than 1000 feet (304m) of 16 AWG wire total per
controller. These wire runs must remain separate from EchoConnect wiring.
ETC recommends using Belden 8471 (or equivalent) wire.
Installation Environment
The Light Sensor Controller is intended for installation to a finished ceiling
surface, soft ceiling tile, attached to a round junction box or single-gang RACO
junction box. The controller operates in ambient temperatures of 0°C to 70°C,
non-condensing humidity.
The Light Sensor Head can be mounted directly into the controller, installed to
a 1/2” conduit knockout, or installed into a soft ceiling tile using the provided
thread extender. The Light Sensor Head can be installed outdoors when
mounted to a weatherproof enclosure. The sensor in this weatherproof
installation scenario operates in ambient temperatures of -25°C to 70°C.
N o t e : All control wiring should be installed and terminated by a qualified
installer and should follow standard wiring installation practices.
Leave approximately 10 inches (254mm) of wiring in the back box
to allow slack for future service needs.
N o t e : ETC requires that all sensors be grounded. Pull an additional 14
AWG (1.5mm
2
) wire for grounding when control wires are not
installed in grounded metal conduit.
N o t e : When using Category5 (or equivalent) cable on the EchoConnect
communication bus, please note the following:
- Not all topologies are supported using Cat5; careful planning is
required to ensure the proper termination kits are available and
the wire is pulled appropriately.
- Cat5 wiring must be terminated using EchoConnect Cat5
Termination Kit, and it must be installed using a bus topology.
Refer to the installation guide provided with the Cat5 Termination
Kit (7186A1207) for information to terminate Cat5 wiring.