ETC Installation Guide
Dual Tech Vacancy Sensor
Wire Specification
The Dual Tech Vacancy Sensor connects to the EchoConnect communication
bus. EchoConnect is a bi-directional protocol that uses one pair of wires
(data + and data -) for both data and power. ETC recommends using Belden
8471 Class 2 wire (or approved equal - see the ETC cable cross database
etcconnect.com/Support/Cable-Cross-Database
for equal alternatives). The
total combined length of an EchoConnect wire run using Belden 8471 may
not exceed 500 m (1,640 ft), with a maximum distance of 400 m (1,312 ft)
between any two devices.
Note:
All control wiring should be installed and terminated by a
qualified installer and should follow standard wiring installation
practices. Leave approximately 25.4 cm (10 in) of wiring in the back
box for connection and to allow slack for future service needs.
Note:
ETC requires that all stations and devices be grounded for
ESD protection. Pull an additional 2.5 mm
2
(14 AWG) wire for
grounding when control wires are not installed in grounded metal
conduit.
Note:
When using Category 5 (or equivalent) cable on the
EchoConnect communication bus, please note the following:
•
Cat5 wiring must be terminated using EchoConnect Cat5
Termination Kit and must be installed using a bus topology.
Refer to the installation guide that is provided with the Cat5
Termination Kit (7186A1207) for information to terminate
Cat5 wiring.
•
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.
Supplies
The following supplies are provided with the sensor:
•
Soft ceiling tile adapters
•
2 each mounting screws, 6-32 x 3/4" and 6-32 x 1 3/4"
•
Lens masks
•
WAGO connectors, 3-position
Dual Tech Vacancy Sensor
Page 3 of 12
ETC
