10INM 9493-PS-XXX rev 14 BACKPLANE MOUNTING VARIANTPLEASE NOTE: The backplane mounting variant is only available by prior special arrangementPlease contact MTL product line to discussThe alternative to DIN-rail mounting is to use a standard MTL backplane that accommodates 8modules with 24V dc dual redundant power supplies. In applications where a number of backplanesare installed, the power supply can be interconnected. Optional earth-rail and tagging-strip kits areavailable for the backplanes.WARNING !If this module is to be connected to intrinsically safe apparatus, it must be installed, operatedand maintained only be trained competent personnel and in accordance with all appropriateinternational, national and local standard codes of practice and site regulation and in accordancewith the instructions contained here.4 1 AccessoriesAccessories are available that enable the user to mount the backplanes. These include surface-mounting kits, T-section and G-section DIN-rail mounting kits and end stops.MOUNTING KITS ACCESSORIESDIN-rail 19-inch Earth-rail Tagging SpareSurface (T or G) rack kit strip kit fuse packSMS01 DMK01 – ERK08– TSK08 FUS084 2 Protection of equipmentWhen the power supply is mounted in a safe area ensure that the local environment is cleanand free of dirt and dust and note the ambient temperature considerations given in Section 5.WARNING !When mounted in a Zone 2 hazardous area the module must be protected by a suitablycertified enclosure. See the Special Conditions for Safe Use provided in the ATEX SafetyInstructions at the end of this manual for further details of operation in Zone 2 hazardous areas.4 3 Backplane mountingSee the table for details of the kits and accessories applicable to the mounting methods and Figure4.1 for dimensions and mounting centres.Note: Before mounting a MTL 9493-PS-XXX on a backplane two minor modifications must be made.1. Remove the DIN-rail mounting clip by compressing the small spring inside the clip with ascrewdriver and then removing it; the clip may then be removed easily from its mounting.2. Remove the power supply plug located in the side of the unit, then fit the small plastic platesupplied to cover the hole in the module case. Figure 4 1:CPS08 backplanefor MTL 9492-PS-PLUSmodules