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2.2.2 Electrical installation
There are two versions of NTP clock: PoE or 230V
.
Read the product label to determine your version.
The lighting (if this option has been selected) is always powered via a mains power supply.
However, power supply for the circuit board may vary according to your model:
NTP PoE model: power supply of the board is provided via the Ethernet cable.
NTP 230V
model: power supply of the board is provided via a second power supply (15V)
connected to the mains.
2.2.2.1 Electrical installation - NTP 230V model
Where the lighting is controlled by the clock, a single mains cable is enough.
It is possible to create an electrical bridge as per illustration A.
Where the lighting is controlled by another line, two mains cables are required
(case described below).
- With lighting option: pass the first mains cable through the wall bracket then connect this cable to
the terminal block
1
in the terminals L-N-
dedicated to the lighting
,
- Pass the second mains cable through the wall bracket then connect this cable to the
terminal block
in the terminals L-N-
dedicated to the circuit board
,
1
(Both mains cables must come from the same building)
- Attach these cables to the central bracket with cable retainers
,
- Pass the Ethernet cable through the wall bracket (crimp and test the cable if necessary),
- Connect the Ethernet cable to the circuit board via the Ethernet port
,
2
- Connect the back-up battery cable (if there is one) to the circuit board
,
3
- Clean the seal and then apply silicone oil on it,
4
3
2
5
A
1
4
- Move the disassembled clock face closer and then reconnect the flat cable
that goes from the
circuit board to the movement
located on the disassembled clock face. The clock face / flat
5
cable A corresponds to the disassembled face, the one that gives access to the circuit board
(grommet side).
- Limit the length of the cable by passing it through the cable clip in order to avoid shading in the
case of the lighting option (contact of the cable with the dial once the clock is closed),
- Close the clock again by putting the disassembled clock face back in its original position,
- Tighten the four cover screws (1,2 Nm) on the reassembled clock face,
- Replace and tighten the air inlet screw (15 Nm) located on the underside of the wall bracket.
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