• Networking

  • Errors and DC issues. Any electrician recommendation?

I ended today by getting a telephone cable and installed it externally through my building shaft and directly to home.
Also isolating one of the faaulty telephone lines inside my home.
Results:
SNR 23
CRC 0

when elevator works SNR drops to 15 which is still acceptable and CRCs to 1 or 2 max until the elevator stops SNR bumps to 22-23.

Before today SNR used to drop to 3 and 5 with 30000 CRCs
leblinux wrote
Adnan wroteDefinitely, same problem. If you happen to install a shielded cable please inform us of the outcome.
Try what i did, connect router to electic room of the building directly to Ogero's box and have someone pull the elevator let me know if SNR drops
Did that à few weeks ago. The ogero box is in the first floor and it is not affected by the EMF. The device causing the EMF is in the elevator room in the seventh floor and I live on the 5th.

It's practically impossible to get the cable through a different route so if a shielded cable can work I'll get one.
I recorded my router's stats while using the elevator which turned out to be affecting my line too!
CRC errors jumped from 933 to 1529 to 2151 and the SNR margin used to reach at some points 0.1.
So is the only solution replacing the phone lines with Cat6 cables if I don't plan to switch to VDSL? And why is this happening at only my house and not others? Maybe because the phones lines which are not shielded are running very close to the electrical lines?
The phone lines don't even have to be close to any electrical cable. It's all due to the huge electromagnetic field generated by some device used in the elevator room. Go upstairs and check it out.
2 years later
You need to take power from outside the building grid..i use a separate dc power for my phone line that i passed outside the regular cable walkway
duke-of-bytes wroteYou need to take power from outside the building grid..i use a separate dc power for my phone line that i passed outside the regular cable walkway
you mean take all telephone cable from outside ?
masrour wrote
duke-of-bytes wroteYou need to take power from outside the building grid..i use a separate dc power for my phone line that i passed outside the regular cable walkway
you mean take all telephone cable from outside ?
It doesn't solve the problem, but it does help a lot. You will still get a deterioration in your signal when the elevator is running, but less pronounced. The ultimate way to fix it is to ground the elevator and to do it after the fact is expensive or to move the phone room from te electric roam which Ogero doesn't like doing.
12 days later
leblinux wrote

The thing is I took today the router and went straight down to the post inside the building electrical room, hooked it on my line directly and monitored SNR as we pressed the elevator and still it affects SNR, I think the whole building is affected with EMF!
Depressing...
Hey
Can you guide me through how can I do that?
How can I connect the router to the box down the building.
I found out which are my cables down, but how do I connect it to the router?
I don't really know much about networking and wiring, do you still happen to have that contraption of a cable you made to connect it?