Splitting POTS between FXO and modem

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Feb 6th, 2008
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We are having intermittent problems connecting a modem/ cash advance machine to an ATA. As a workaround, we are thinking of splitting one of the POTS lines, connecting it to the modem and a port in the FXO card. Will this work or will it cause a problem?

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Rob Huffman Wed, 02/06/2008 - 07:39
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Hi Thomas,

I do think this will cause problems unless you install a "cut-off switch" along with the splitter (to turn the POTS On/Off to either device). If this was used in only one application at a time and controller by the switch you would probably be OK. If it were me I would just designate the line for the Cash Advance modem and remove it from the FXO alltogether :)

Hope this helps!


thomuff Tue, 02/12/2008 - 11:09
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Thanks, your post has been helpful. No cut-off switch. So far, we haven't had a problem. We did place it in the FXO port that is least preferred.


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