TD 93021US
17 July 2017 / Ver. PF3
25
Installation Guide
teleCARE IP
5.3
Preparing the Room Bus and Power Cables
It is important to prepare the cables appropriately and to guide the wires correctly inside the housing in
order to avoid the wires pressing on the printed circuit board which could result in damage and also
prevent the top section from closing properly.
The following instructions apply to the room bus cables, the power supply cable, and the corridor lamp
cables.
5.3.1 Stripping the Outer Jacket of the Cables
The first step is to strip the outer jacket of the cables to a length of 6.0in (150mm), then position the
cable in the back box so that only the stripped wires enter the NIRC3 housing.
Figure 20. Stripping and positioning the cables for the NIRC3
Caution:
Each room bus requires four wires. If the cable contains more than four wires the
excess wires should be carefully stowed in the back box, away from the printed circuit board
and other components to avoid electrical faults and safety problems.