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Audio Expander with Control Inputs and Outputs

The Audio Expander is a versatile device designed for expanding audio inputs and outputs. With numerous control inputs and outputs, it offers a wide range of options for audio connectivity. The device features input and output transformers, supervised and non-supervised input contacts, and a maximum cable length of 1km. It also includes contact specifications for output contacts, including 24V/1A DC and 120V/0.5A AC. The Audio Expander supports different audio input and output connections, including XLR-M, XLR-F, and Cinch.

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Audio Expander with Control Inputs and Outputs

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  1. Audio Expander Aexp, more details

  2. Main PCB I/O Board Audio Expander The inside

  3. Output transformers Input transformers Audio Expander The input and output transformers

  4. Audio Expander Control inputs

  5. 10 k 10 k Supervised input contact Non-Supervised input contact Audio Expander Control inputs Cable length max. 1km Don’t use a common line to wire the switches

  6. Audio Expander Output contacts

  7. C NC NO Audio Expander Output contacts • Contact specs • 24V / 1A DC • 120V / 0.5A AC

  8. Audio Expander Audio inputs and outputs

  9. XLR-M XLR-F Cinch 1 1 2 2 3 3 Audio Expander Audio inputs and outputs • Inputs • Mic. Input XLR : Electronic balanced • Phantom powering • Line input XLR : Transformer balanced • Line input Cinch : Unbalanced • Outputs • Line output XLR : Transformer balanced • Line output Cinch : Unbalanced

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