ETC Installation Guide
Echo-Echoflex Interface
Echo-Echoflex Interface
Page 2 of 15
ETC
Compliance
UL and cUL Listed, UL2043 listed for installation and use in a plenum space.
RoHS compliant
WEEE marked
FCC: Contains FCC ID: SZV_STM300U - the enclosed device complies with Part 15 of the FCC
Rules.
Operation is subject to the following two conditions: (i.) this device may not cause harmful interference and
(ii.) this device must accept any interference received, including interference that may cause undesired
operation.
Contains IC: 5713A-STM300U / Contient le module d´émission IC: 5713A-STM300U
Range Planning
The EEI interfaces Unison Echo communications with Echoflex controls using a 902 MHz wireless signal. For
best wireless performance, because radio waves can be susceptible to interference, some basic principles
should be followed when determining the location of the EEI to the Echoflex wireless stations and
controllers.
Additionally, ETC requires that the total combined length of an EchoConnect data run (using Belden 8471
or equivalent) must not exceed 1,640 feet (500 m). This requirement should be considered when
determining the location of the Echo-Echoflex Interface for installation.
Range Planning Guidelines for Wireless
When an event is triggered by a button station or sensor, a wireless message is sent between the EEI and
the linked Echoflex device(s). Radio signals become inherently weaker the further they travel and coverage
can be decreased by certain materials or obstacles between the stations and controllers. Although the
wireless signal can transmit through walls, they are dampened more than on a direct line-of-sight path.
Line-of-sight is always the best application when possible.
Typical Radio Range
Material
Range - Typical
Line of sight
80 feet (24 m) corridors
Line of sight
330 feet (100 m) open halls
Plasterboard
80 feet (24 m) through 5 walls
Brick
33 feet (10 m) through 3 walls
Concrete
33 feet (10 m) through 3 walls
FerroConcrete
33 feet (10 m)
Ceiling
1 drop ceiling (drywall not
recommended)
Signal Loss
Material
Attenuation
Wood/Plaster/Glass
0-10%
Brick/MDF
5-35%
Metal
90-100%
