INSTALLATION AND CONNECTION
PROTECTIVE EARTH AND BONDING TERMINALS
The Intercom Unit must be permanently earthed.
The Unit is tted with an earth stud marked up with an earth label, the stud size is M3 and has a M3 Nyloc nut attached.
The earth wire must be at least 1mm² - 18AWG - 30/0.2mm Green/Yellow in accordance with normal electrical wiring
standards.
This earth wire will be terminated with a crimped M3 ring terminal and tted to the Earth Stud in the Backbox, the other
end will be attached with similar method to the Mounting steel post, or via an Earth Ground Spike where the Intercom
Unit is mounted on a masonry surface.
09
I
NSTALLATION MANUAL FOR OPTIMUS 4G LTE RANGE OF INTERCOM UNITS
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