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Lake LM Series Operation Manual
Also see for LM 26: SpecificationsOperation manualQuick start guide
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44Back Panel InterfaceLake LM Series Operation M anual R ev 1.3.5The method shown in Figure 7-6 uses twin-and-screen (balanced) cable and standard XLR pin connectionsat the LM Series device end, with the cold wire and the cable screen connected to the signal ground of theequipment at the source end.This usually provides better noise and hum rejection than the more common method of joining pins 1 and3 together in the XLR. However, if only a single-core (unbalanced) cable is available, the method shown inFigure 7-7 may be used.123HOTSCRNHOTSCRNUnbalanced Output(Typically phono)Balanced Input(XLR)Figure 7-7: Unbalanced Analog Wiring and Pin Out7.1.5 Iso-Float Electronic BalancingThe analog input and output electronic balancing circuits use the Lake Iso-Float system.The Iso-Float technology combines the benefits of transformer-coupled isolation with the advantages ofclean, direct-coupled inputs and outputs. The audio converters are galvanically isolated, and not connectedto the main ground. High-quality transformers and opto-isolators create a barrier between the device andpossible grounding aberrations from the outside electrical environment.Iso-Float settings are adjustable via the front panel menu or the Lake Controller software.7.2 AES3 Digital I/O7.2.1 AES3 DB25 ConnectorA DB25 connector following the Yamaha pin-out standard is provided for AES3 connectivity on the LMSeries device.Figure 7-8: AES3 DB25 Connector and Pinout Reference |
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