[asterisk-users] DB9 e1 to RJ45 pinout

[Niklas Larsson]

On Fri, 24 Nov 2006 17:34:52 +0100, Alban wrote:
> I had some troubles once with db9 and RJ45... It was due to an
> impedance pb. As I remember, you have to change the impedance in
> the adaptor (with adding some R-C)... I haven't done it, and my
> line was half-working (sometimes yes, sometimes not...).
> So, I suggest you to check if the impedance are the same...

On the equipment used by telia in Sweden the rx is pin 1&6 and tx pin 5&9 and it's 120 ohm (same as rj45).

mvh,

Niklas Larsson