54 Keysight 34921A-34925A Low Frequency Multiplexer Modules User’s GuideLow Frequency Multiplexer Modules 34925A 40/80-Channel Optically-Isolated FET Multiplexer34925A Simplified Schematic for One-Wire ModeThis drawing shows two independent 40-channel, 1-wire MUXes.To change configuration modes, use the SYSTem:MODule:WIRE:MODE command.The three-digit number assigned to each switch represents thechannel number.Bank relays: FET non-latching; Analog Bus relays: Armaturenon-latchingHHH HHHABus2DMM(SENS)ABus3 ABus4923913 914924922912911921ABus1DMM(MEAS)001002003004005006007008009010021022023024025026027028029030011012013014015016017018019020031032033034035036037038039040041042043044045046047048049050051052053054055056057058059060061062063064065066067068069070 H071072073074075076077078079080 HLH LH LH LHLHLHLHLHLHLHBank 1Bank 2COM 2COM 1Analog BusesOvervoltage Protection(each channel)100H51.111 11100Current-Limiting CircuitryArtisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com