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Help with Telex intercom and PSU

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  • Help with Telex intercom and PSU

    I've got a system to reinstall in a facility with an Audiocom BTR-300 intercom system, BP-1002 beltpacks and a Telex PS-1F. It was removed by someone else, so I'm not sure how they had it installed initially. The beltpacks need the 24volt output of the PS-1f power supply, but I don't see a place on the BTR-300 to inject this power. The BTR-300 has it's own 12 volt supply. I'm afraid to tie the two units together for fear of releasing the magic smoke inside. None of the PDF's I could find show how you integrate these pieces. Any ideas?

    Thank you.

    Greg Begland