[Asterisk-Users] PSTN/phone/FXO/FXS cabling issue

[Lyle Giese]

Line 1 is always the center two pins.  Line2 (on a two line analog jack) are
the pins just to the outside of the center two pins.

Now you know why the center two pins are pair 1 and the pins to the outside
of them is pair 2.  The rj11/12 jack will plug into the wider rj45 just
fine.  You just have to make sure you center it when plugging it in.

Lyle

----- Original Message ----- 
From: "Florin Andrei" <florin at andrei.myip.org>
To: <asterisk-users at lists.digium.com>
Sent: Friday, July 16, 2004 5:11 PM
Subject: [Asterisk-Users] PSTN/phone/FXO/FXS cabling issue


> I just received a Wildcard TDM400P by FedEx yesterday. I noticed that
> the FXO/FXS modules use connectors similar to Ethernet.
>
> Now, i want to connect the TDM400P to the PSTN connector in the wall,
> and also to a regular analog phone. Both the PSTN conn and the phone use
> smaller connectors, typical for analog phones.
>
> I searched the "official" docs and the Wiki, there's good information
> about T1 cabling and whatnot, but not much about analog lines.
>
> I could make my own cables, but i don't know how to connect the larger
> Ethernet-style connector to the smaller analog-style one (which pins go
> to which?).
>
> Any help is appreciated. Thanks,
>
> -- 
> Florin Andrei
>
> http://florin.myip.org/
>
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