User Manual

www.siemens.com/gamma
Factor non-communicative
devices into KNX
I/O-pushbutton interface UP 220/21 and UP 220/31 – small, universal
and independent
Various fields of application
These interfaces enable the use of
various applications: conventional
operating points for room functions are
connected to KNX, gateways for
transmitting digital signals, e.g. window
contact, fault messages, to KNX. Status
LEDs can also be controlled in
conventional circuit breaker inserts.
The simple solution for KNX
Communication
Pushbutton interfaces provide an ideal
option to use KNX actuators for
operating conventional switches and
pushbuttons, especially in countries
where pushbuttons and socket outlet
designs are equipped with a bus
pushbutton.
Highlights
 Suitable for standard UP socket
outlet thanks to their low
mounting height
 Connecting cables up to 10 m for
connecting remote operating
points
 Comprehensive range of
applications for universal use
 High output current for directly
controlling status LEDs
Reference to the GAMMA catalog:
- Chapter Input Devices – Binary
Input Devices