Aes3 Digital I/O - Lake LM Series Operation Manual

Back Panel Interface
The method shown in Figure 7-6 uses twin-and-screen (balanced) cable and standard XLR pin connections
at the LM Series device end, with the cold wire and the cable screen connected to the signal ground of the
equipment at the source end.
This usually provides better noise and hum rejection than the more common method of joining pins 1 and
3 together in the XLR. However, if only a single-core (unbalanced) cable is available, the method shown in
Figure 7-7 may be used.
7.1.5 Iso-Float Electronic Balancing
The 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 of
clean, direct-coupled inputs and outputs. The audio converters are galvanically isolated, and not connected
to the main ground. High-quality transformers and opto-isolators create a barrier between the device and
possible 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/O

7.2.1 AES3 DB25 Connector
A DB25 connector following the Yamaha pin-out standard is provided for AES3 connectivity on the LM
Series device.
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Lake LM Series Operation Manual Rev 1.3.5
HOT
SCRN
Unbalanced Output
(Typically phono)
Figure 7-7: Unbalanced Analog Wiring and Pin Out
Figure 7-8: AES3 DB25 Connector and Pinout Reference
2 1
HOT
SCRN
3
Balanced Input
(XLR)