Chapter 2 Using the SCXI-1129© National Instruments Corporation 2-9 SCXI-1129 User ManualFigure 2-6. 8 × 16 Matrix Configuration4 x 16 MatrixRelays4 x 16 MatrixRelays4 x 16 MatrixRelays4 x 16 MatrixRelaysB1R0–B1R3B1C0–B1C15B2R0-B2R3B1R4-B1R7B2C0–B2C15B2R4–B2R716 columns16 columns16 columns16 columns4 rows4 rows4 rows4 rows0123012301230123AB0AB1AB2AB3High-VoltageRearSignalConnectorDigitalComm.Low-VoltageRearPanelSignalConnectorSCXIBusConnectorB1R0 = Bank 1 Row 0B1C0 = Bank 1 Column 0Each row and column consists of two wires. One for source (+) and one for return (–).Note: The analog bus relays have a built-in safety interlock. For safety reasons, they cannot be closed unlessa terminal block is connected.0123Com0Com1Com2Com3SCXIBusInterface128 K x 8 SRAMScan List MemoryDigital Interfaceand Control(FPGA)Calibration EEPROMSCANADVDEXTRIGINFront SignalConnectorConnection RelaysAnalog Bus RelaysSCXI-1337TerminalBlockSCXI-1129Module
