Help converting an audio intercom into a handsfree audio intercom

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nanomess

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Hi,
I have a BPT Agata C200 4-wire internal audio intercom machine (please see the attached pdf for info), that I'd like to replace with a cleaner looking handsfree system. Unfortunately, no such system exists that is compatible with my outdoor BPT unit. The C200 is literally the only compatible model with the outdoor BPT unit. I also own a Siedle AIB 150-0 which is a 2-wire handsfree indoor audio intercom.

I'm looking for someone (preferably UK/EU based, since I'm here) that can help modify the Siedle so it can work with my 4 wire system, or alternatively, modify the internals of the Agata C200 and fit in the Siedle casing so it works as a handsfree setup.

Thanks,
Farbod
 

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  • BPT AGATA C 200 UK Intercom Handset Data Sheet.pdf
    799.2 KB · Views: 285

A telephone hybrid is needed to translate 2 wire to 4 wire. Bias and gain may be needed in addition.

I presume you have no info about used audio levels and DC bias, need to measure it in system.
 

Hi,
Thanks for the response.
Yes, you're absolutely right. How can I find out this information?
 

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