USB-Connector, User Manual
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3 Power supply
The device is powered by the USB port and requires no external power supply. In
general, the device is operated internally with a supply voltage of 5 V DC.
4 KNX bus connection
4.1 KNX connection adapter
The adapter with which the USB-Connector is connected to the KNX bus via the D-Sub 9P
plug, exists in an encapsulated version, without a plastic housing or as DIN rail adapter.
4.1.1 KNX WAGO 243 211 adapter
The connection adapter forms a transition from the D-Sub-
9-Pin-connector to a WAGO 243 211 connector terminal.
These have prevailed in most KNX installations. The adapter
is supplied as a simple circuit board construction without
housing and is suitable for installation in non-visible locations.
4.1.2 KNX WAGO 243 211 adapter, encapsulated
The KNX connection adapter from the D-Sub-9-Pin to
the WAGO-243-211 connector terminal with housing also
connects the USB-Connector to the KNX bus. The encapsu-
lated model is especially suitable for the mobile use.
4.1.3 DIN rail adapter set
The KNX DIN rail adapter is connected to the
KNX bus before use and installed in the switch
cabinet. Afterwards the USB-Connector is
connected to the KNX bus by means of the 2
m extension cable (part of the set). While the
inexpensive DIN-rail adapter can be perma-
nently installed at different locations, only
one interface (the USB-Connector) is needed
for the KNX access, which can be connected
to the KNX bus on site without the need for
additional tools.