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3 Installation
3.1 Mounting
The USB hub CU8004-0000 can be snapped onto a 35 mm mounting rail conforms to EN 50022.
To release the CU8004-0000 from the C mounting rail
•
first pull the lug at the bottom of the hub downwards by using a screw driver
•
then pull the hub from the mounting rail
3.2 Power Supply
The USB hub CU8004-0000 requires a 24 V
terminal X10, labeled 24 V. This supply feeds the hub electronics and, over the USB downstream ports, the
connected USB devices (5 V
3.2.1
UL requirements
For the compliance of the UL requirements the USB hub CU8004-0000 should only be
supplied
Danger
To meet the UL requirements, the USB hub CU8004-0000 must not be connected to
unlimited power sources!
Danger
CU8004-0000
supply for it's operation. The connection is made by means of the
DC
). It is protected against polarity reversal.
DC
•
by a 24 V
supply voltage, supplied by an isolating source and protected by means
DC
of a fuse (in accordance with UL248), rated maximum 4 Amp.
•
by a 24 V
power source, that has to satisfy NEC class 2.
DC
A class 2 power supply shall not be connected in series or parallel with another
(class 2) power source!
Installation
6
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