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8/ Start Up
The KBox F-420-WLU must be only operated with the nominal voltage of 19 V ~ 24 V DC
of type SELV for models with Phoenix connector or of 12 V DA for models with DC jack.
For details refer to the chapter 10/ ''Technical Specifications''.
8.1. Connecting to DC Power Supply
The Phoenix connector (Figure 2, pos. 1) or DC power input jack (Figure 3, pos. 1) is located on the rear side of the KBox
F-420-WLU. The KBox F-420-WLU will be connected to a DC main power supply via the supplied Phoenix power plug
terminal (Figure 21) and corresponding power wires (prepared as described in the subsection 7.2.1 "Cabling") or be
connected to a AC-to-DC power adapter via the attached male DC power plug or supplied Phoenix power plug
terminal (Figure 18) as well as corresponding power cable to couple together the adapter and the AC power outlet.
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 KBox F-420-WLU must be connected DC main 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 KBox
F-420-WLU.
Even when the system is turned off via the power button (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 KBox F-420-WLU.
The wires used for power connections must be clearly marked (+/-) to ensure that they
will be proper connected to the DC IN connector of the KBox F-420-WLU and to the main
power source, corresponding to signals marked; refer to Figure 21 and Subsection 11.1.
The cables must have some form of support so as to minimize the strain on the unit's
connectors.
To connect the KBox F-420-WLU to a corresponding power supply, please perform the following steps:
For connection to DC main power supply:
1. Ensure that the DC power source is switched off via a disconnecting device (circuit breaker), in order to ensure
that no power is flowing from the external DC power source during the connection procedure.
2. Connect the Phoenix power plug terminal prepared as described in the subsection 7.2.1 "Cabling" to the DC input
Phoenix connector (Figure 2, pos. 1) of the KBox F-420-WLU. The DC input connector is located on the rear side.
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KBox F-420-WLU - User Guide, Rev. 1.0
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