4201N | Invensys REMOTE EXTENDER MODULES

RXMs are multi-mode fiber optic modules that allow expansion chassis to be located up to 1.2miles away from the main chassis. An RXM connection consists of three identical modules,serving as repeaters/extenders of the Tricon I/O bus that also provide ground loop isolation. The Tricon V9 was qualified with the 4210N and 4211N primary and remote RXM set whichused single mode fiber optic cable. The V10 was qualified with the 4200N Primary and 4201Nremote RXM set which uses multimode fiber optic cable. Both use the same software (seeTable 2 above) and differ in the type of fiber optic cable that is supported. The V10 supportedmultimode fiber optic cable is capable of a 1.2 mile span while the V9 supported single modeversion is capable of a 7.5 mile span. Though both RXM sets have been qualified, they are notinterchangeable across the platforms because they were not qualified as interchangeable.