28 New installation of S8 / S 81 ceiling mountM-30-1382-en S8 / S81 Ceiling Mounts Issue 12.0Printed on 19. 11. 2007Customer's preparatory responsibilities, overviewe Mounting of the pre-installation set.e Installation and connection of the systems's power cables on the pre-installation set.e The power line of the ceiling mount must be protected by a 1-pole au-tomatic circuit breaker (230 V: 10 A, 115 V: 20 A) or a 1-pole slo-blofuse (230 V: 10 A, 115 V: 20 A). The fusing must be installed in thephase wire.e A 2-pole power switch with an admissible contact load of min. 230 V:10 A (115 V: 20 A) must then be installed. Alternatively, a powerswitch can be integrated in the system as part of the instrument con-nector option. Also see page 48 and page 52.e Installation of the wall socket (flush or surface socket).e Installation of conduits and cables fore power line, 3 x 1.5 mm 2 (3 x AWG16)e wall socket for foot control panel (as required)e potential equalization (as required)e video, internal diameter 50 mm (2") (as required)e OR illuminators (24 V DC with backup power supply, customer'sresponsibility) (as required)e other OPMI accessories such as BIOM/SDI, additional illumina-tion, AUX output port, etc. (as required)e We recommend installing further conduits, e.g. to the central ORcontrol panel, for future upgrades.e The maximum admissible cable length for SpeedFokus is 10 m(394"). If this is not sufficient, a signal amplifier must be provided.