MI SERIES
– Manual (v1.7)
Obelux Oy, Kutomotie 6 B, 00380 Helsinki FINLAND
© Obelux Oy 2017 Technical information in this document is subject to change without notice.
Page: 8(28)
5 INSTALLATION
5.1 Device installation
Mount the obstruction light to selected mounting point using quality-made fasteners. This aviation obstruction
light comes with four bolt holes to mount this product securely. One of the mounting points is not painted.
This mounting point can be used as additional grounding. Level the light using spirit level (bubble level) if the
mounting point is not already levelled. Tighten bolts & nuts. Obelux recommends 100 Nm tightening torque
for M12 hot-dipped 8.8 bolts with suitable washer between bolt and mounting plate. When the service access
hatch (door) is open, check that there is no inflow of water (incl. hail and snow) into aviation obstacle light.
Photocell is located on top of the light. Photocell should have an uninterrupted view of the sky to work
correctly. All dimensions are in millimetres (mm).
Figure 3: Dimensions
5.2 Wiring
Route cables using cable glands on side of the light head. Connect the cable wires securely to appropriate
terminal block connectors. Connectors can be disconnected from the terminals on the main circuit board for
easier access. Second row of terminals in the Alarm relay / RS485 connector can be used to distribute alarm
and data signals to next light head.
Figure 4: Terminal block connector
Mains Power
Alarm relay / RS485 data
