8/ Starting Up; Connecting To Dc Power Supply - Quanmax QBOX-2090 Series User Manual

8/ Starting Up

The QBOX-2090 Series must be only operated with the nominal voltage of 12V DC of
type SELV. For details refer to the chapter 10/ "Technical Specifications".

8.1. Connecting to DC Power Supply

The DC power input jack (Figure 2, pos. 1) is located on the rear side of the QBOX-2090 Series. The QBOX-2090 Series
will be connected to a AC-to-DC power adapter via the supplied male DC power plug and corresponding power cable
attached to the adapter.
Before using your system, become familiar with the system components and check that
everything is connected properly. Following a proper cabling procedure will prevent a
false power-on condition, which could result in unit operational failure.
When you install/disconnect the unit, the functional earth connection must always be
made first and disconnected last.
Also, it is recommended that the last connections attached to the system should be the
power wires!
The QBOX-2090 Series must be connected DC power supply complying with the SELV
(Safety Extra Low Voltage) requirements of EN 60950-1 standard. It must be observed
that wiring and short-circuit/overcurrent protection is performed according to the
applicable standards, regulations and respect to the electrical specification of the
QBOX-2090 Series.
Even when the system is turned off via the power switch (Figure 1, pos. 1) parts of the
system are still energized.
The disconnecting device (fuse/circuit backer) rating must be in accordance with the
wire cross-section and the rated current of the QBOX-2090 Series.
The cables must have some form of support so as to minimize the strain on the unit's
connectors.
To connect the QBOX-2090 Series to a corresponding DC power supply, please perform the following steps:
1. Connect the power adapter cable to the DC jack (DC IN, Figure 2, pos. 1) of the QBOX-2090 Series.
2.
Connect the power cable to the power adapter.
3. Connect the power cable to a power outlet.
4. Press the power switch (Figure 1, pos. 1) on the front panel to turn on the system.
QBOX-2090 Series - User Guide, Rev. 1.2
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