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New Member

FXO card query

Can i know

that can FXO cards used with EPABX

And can FXS card be used with EPABX?

If yes then wat is difference between both ?

Are FXO and FXS cards used with Dot Line?

Regards

Auromira

3 REPLIES
Silver

Re: FXO card query

FXO and FXS cards can be used to interface to PBX's, but they are not the recommended way of doing this. This is what E&M interfaces were designed for - and E&M gives you answer and disconnect supervision, which is often not available on PBX ports.

A FXS port provides line power (-48VDC) and ringing singal to the attached device , which is normally a telephone handset. It is similar to a extension port on a PBX.

A FXO port is passive, meaning it expects to see the -48VDC line power coming from an external source. It senses the ring signal and goes off hook and plays a secondary dial tone. It can be compared to a PBC trunk port that interfaces to an exchange line.

You will have to tell us what a "Dot Line" is so we can confirm if FXO or FXS ports will work with one.

New Member

Re: FXO card query

Hi,

I meant by Dot Line as the phone line. I mean the normal phone through which we use Dial up connections

Regards

Sejal

Silver

Re: FXO card query

A FXO port will work with a normal phone line from the telephone exchange.

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