Data Sheet for Product

4
A6V11868511
2021-06-16
Technical design
Voltage supply
The supply provides controlled voltages for inputs and outputs. The room automation
stations also supply AC 24 V and DC 24 V field supply. The supply is located in the device to
simplify wiring and diagnostics.
The processor controls voltage supply. This ensures clean conditions for the field devices
connected to the I/Os during startup, shutdown, and undervoltage.
Bus power supply
The room automation station includes the bus power for KNX PL-Link. The bus power is
switched on by default, but can be switched off via a web interface or configuration in the
Automation Building Tool (ABT).
The internal KNX PL-Link supply cannot be operated parallel to external power supplies. The
internal KNX PL-Link power must be switched off during the engineering phase for external
power. This is typically the case if the 50 mA from the internal supply is not enough to supply
all devices connected on the KNX PL-Link bus.
Type summary
Order numbers
Type Stock number Applications Inputs Outputs
DXR2.M17C-103B
(Version with 30
data points)
S55376-C137 Variable airflow, pressurized room
control, radiant ceiling, radiator, 4
luminaires & 2 blinds
or
fume hood control, 1 luminaire
3 DI, 4 UI, 2
resistive
inputs,
SCOM
4 triacs, 4 AO
DXR2.M17CX-103B
(Version with 60
data points)
S55376-C161 Variable airflow, pressurized room control
with 2 segments, radiant ceiling, radiator,
4 luminaires & 2 blinds
or
fume hood control, 1 luminaire
3 DI, 4 UI, 2
resistive
inputs,
SCOM
4 triacs, 4 AO
Accessories, lab specific
Type Stock number Designation Datapoint
count
DXA.S04P1 S55376-C139 Airflow Pressure Sensor 1
DXA.S04P1-B S55376-C140 Airflow Pressure Sensor with IP54 enclosure 1
QMX3.P87-1WSC S55624-H111 Fume Hood Operating Display (QMX3.P87) 3
QMX3.P88-1WSC S55624-H112 Fume Hood Operating Display (QMX3.P88) 3
DXA.S12C S55376-C138 Sash Open Area Module 1
DXA.B130 S55376-C158 Cable Sash Sensor (1300mm/50in) 1
DXA.B200 S55376-C159 Cable Sash Sensor (2000mm/80in) 1
DXA.H180 S55376-C120 Terminal cover for DXR.. 180 mm, 2 pieces n/a