D25User's Manual GE Grid Solutions122 994-0081-3.00-21 GE InformationDDSP ModulesDDSP Modules Dual DSP (DDSP) modules contain the analog-to-digital conversion anddigital signal processing (DSP) circuitry required for processing analogsignals from the AC analog input cards.The following DDSP variants are available:• DDSP 32 MHz, 1 MB Memory (504-0009) – Special Order• DDSP 50 MHz, 1 MB Memory (504-0011) – Obsolete• DDSP 50 MHz, 2 MB Memory (504-0015)Location DDSP board is mounted on top the WESDAC Board, just left of center.Removing theDSP BoardCarefully grasp the board on both sides, and pull away from the WESDACBoard. A slight rocking motion may assist in freeing the board from itsconnectorsDiagram ofType I DSPModuleNote: The DDSP card is mounted with component side facing toward theWESDAC main board.Replacing theDSP Board1. Carefully position the DDSP Board on top of the WESDAC Board, andalign the connectors.2. Firmly press down on the connectors until completely seated withWESDAC board connectors.Polarized Connectors. The DDSP Cards can only be inserted right side up.DO NOT ATTEMPT TO INSTALL UPSIDE DOWN.To Remove, Grasp hereand pull upTo Remove, Grasp atboth sides and pull upTo Replace, pressfirmly on connectorsTo Replace, pressfirmly on connectors
