09.07.2018, 08:47
(This post was last modified: 09.07.2018, 08:47 by Erwin van der Zwart.)
Hi,
KNX specifies that you can use a power supply on both ends of the line with a minimal distance of 200m between each PSU (to avoid over-current / burned cables on short circuit)
I have seen this in practice and it's very hard to maintain. When you have a power interruption in one of the PSU's the other one will go into overload error and you can only boot it up again by enabling the PSU's at the same time.
My advice is to never do this, and always use a line coupler with new PSU.
BR,
Erwin
KNX specifies that you can use a power supply on both ends of the line with a minimal distance of 200m between each PSU (to avoid over-current / burned cables on short circuit)
I have seen this in practice and it's very hard to maintain. When you have a power interruption in one of the PSU's the other one will go into overload error and you can only boot it up again by enabling the PSU's at the same time.
My advice is to never do this, and always use a line coupler with new PSU.
BR,
Erwin