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Software/Firmware
Vantage’s thermostat interface stations are compatible with InFusion Design Center software and
QLink software. NOTE: The Q-ETS3 requires QLink version 2.50 and Controller firmware version
5.70 or higher. The STHERR101 requires QLink version 4.0 - build 310 and Controller firmware
version 7.4 or higher. Full featured communication requires updated software and firmware. For
new projects it is recommended that firmware and software be kept to the most current release.
Station Connection
The Q-ETS3 connects to the Vantage System Station Bus with the two black wires labeled Station
Bus. The Station Bus wire should comply with the Vantage wiring specification. The STHERR101
connects to the Vantage System via a RadioLink® enabled system.
Mounting the Q-ETS3 or STHERR101
The Q-ETS3 or STHERR101 may be mounted behind the thermostat in a single gang box or may
hang through a 1¾” (4.44cm) hole in the wall. The Black wire X1 and Green wire X2 attach to
terminals labeled X1 & X2 of the thermostat sub base. The Red wire 24V attaches to the R terminal
(screw terminals on right) of the thermostat sub base along with the 24V power source. The
Q-ETS3 or STHERR101 do not supply power to the thermostat.
Configuration, Q-ETS3, WireLink™
When the Q-ETS3 and the thermostat are first powered, the STATUS LED will blink twice followed
by a pause and the thermostat display will flash THERMOSTAT STATION UNCONFIGURED. It is
configured like any other station. From Design Center, click on the Configure Stations button on the
toolbar or From QLink, Select System | Configure Stations menu and select the radio Configure
button in the online configuration section. The thermostat display will flash CONGIGURATION
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