31InStALLAtIon And opErAtIon mAnuAL 25-13741-E January 2020 www.eaton.com10. Installation10.4 Cabling requirementsAll cabling must comply with local regulations, codes of practice and standards.panel / outstations: Enhanced Fp200 2x2 / 1x4 Core; 1.5mm2 is recommendedfor power and data connections to Outstations. Use screened cabling throughoutthe installation. Ensure screen wiring is securely bonded to the earth/shieldterminals provided.mains wiring: VoCALL 16 requires a mains supply exclusive to the panel that usesfixed three-core wiring (between 0.75mm2 and 2.5mm2) which is fed from a doublepole isolating fuse connection unit, fused at 3A. Unauthorized operation of the mainssupply must not be allowed and the fused spur should be labeled “EMERGENCYVOICE COMMUNICATION SYSTEM: DO NOT SWITCH OFF”. Mains wiring must besegregated from all other system wiring.Good practices:• Cables should be installed without external joints wherever practical.Joints should be enclosed in Fire resistant junction boxes, labeled with the words“EmErGEnCY VoICE CommunICAtIon SYStEm”.