Siemens FDCIO222 Input/Output Module - Nairobi Central - by Mrafuel

The four (4) input / (4) output interface module (Model FDCIO422) from Siemens ─ Fire Safety is designed to provide the means of interfacing directly shorting devices to the Device Loop Card (Model DLC and XDLCf), as well as the Desigo Fire Safety fire-alarm control panels (FACPs). Model FDCIO422 provides the “built-in” ISOtechnology feature - intelligent dual direction isolation meeting NFPA 72 Class X (Style 7) survivability requirements. Up to 252 isolator devices per loop and, in mixed-mode, up to 30 devices between isolator devices (non-isolated devices wired in polarity-insensitive mode). Additionally, the devices between isolators can either be legacy ‘H’-series or the more contemporary ‘X’-series devices.