23.2 Hardware modules IP14529-1 v123.2.1 Overview M11562-3 v9Table 628:Basic modulesModule DescriptionPower supply module (PSM) Including a regulated DC/DC converter that suppliesauxiliary voltage to all static circuits.• An internal fail alarm output is available.Numerical module (NUM) Module for overall application control. All information isprocessed or passed through this module, such asconfiguration, settings and communication. Themodule provides four SFPs for Ethernet traffic.Local Human machine interface (LHMI) The module consists of LEDs, an LCD, a push buttonkeyboard and an ethernet connector used to connecta PC to the IED.Transformer input module (TRM) Transformer module that galvanically separates theinternal circuits from the VT and CT circuits. It has 12analog inputs.Analog digital conversion module (ADM) The module converts the VT and CT analog signalsfrom the TRM to digital signals processed by the NUM.Carrier for communication boards.Combined backplane module (CBM) The module has two main purposes: to distributesupply voltages from the PSM to the other modulesand to act as a communication carrier via its twobuses, CompactPCI for fast I/O and communicationand CAN for slow I/O.Universal backplane module (UBM) The module is used to interconnect the TRM and theADM. It also connects the NUM with the LHMITable 629:Application specific modulesModule DescriptionBinary input module (BIM) Module with 16 optically isolated binary inputsBinary output module (BOM) Module with 24 single outputs or 12 double-polecommand outputs including supervision functionBinary I/O module (IOM) Module with 8 optically isolated binary inputs, 10outputs and 2 fast signalling outputs.Optical Ethernet module (OEM) Module used for Ethernet traffic. It has support for twoSFPs.Optical Ethernet SFP Small form factor pluggable for EthernetcommunicationGalvanic RJ45 Ethernet SFPs Small form factor pluggable for EthernetcommunicationTable continues on next pageSection 23 1MRK 511 408-UUS AIED hardware804 Phasor measurement unit RES670 2.2 ANSITechnical manual
