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 1 
 on: Today at 12:06:21 AM 
Started by Psimpson144 - Last post by Weaver
If an FTTC cabís battery goes flat and thereís no mains, how does it ever come back on again? If the mains isnít always off then the batteries will recharge and presumably service will come back up. If the mains is off then the batteries wonít recharge and the services will be down for good. Perhaps itís a design limitation that the PSU cannot draw enough current to drive the FTTC hardware and recharge the batteries at the same time. Is it the case that once the batteries go flat the fttc hardware canít provide service while the batteries are in the recharging state? ie the batteries have to recharge to a certain level before services become available. That level is presumably 100% because the downtime is 70-80 mins. Itís a state machine and I donít have a picture of it.

 2 
 on: May 27, 2022, 09:36:14 PM 
Started by Psimpson144 - Last post by tiffy
Like the video  ;D

Quote
@tiffy If the power to the Cab has failed they just change the batteries every 8 hours or so.
Ahh, yet another scenario I hadn't considered, a complete mains outage, was thinking more of a battery failure or charging issue with periodic mains loss!

Still, would have thought that TT would have been made aware of such an occurance if this is indeed the case and would have passed on the information to effected customers especially when they actually raised an issue with their ISP in the first place.

 3 
 on: May 27, 2022, 07:54:52 PM 
Started by Psimpson144 - Last post by RealAleMadrid
Can't be sure but from the symptoms it could well be a power problem at the FTTC cabinet, the fact that it is a regular interval is suspicious. Have look at this excellent U-tube video.. https://www.youtube.com/watch?v=TBMoR1NMwVg  :)

@tiffy If the power to the Cab has failed they just change the batteries every 8 hours or so.

On the other hand do TT not consider a noise margin of 0.0 to be possible problem?  :o

 4 
 on: May 27, 2022, 07:30:58 PM 
Started by Psimpson144 - Last post by tiffy
Quote
It could be that the DSLAM has lost power, is lasting 7 hours on batteries and the down time is batteries being changed?

Something that would never have occured to me I must admit.
Obviously that scenario would effect all VDSL subscribers on that cabinet so a considerable amount of queries/complaints would be expected to various ISP's who via their respective diagnostics would be aware that the DSLAM was down.
Wonder if this would be recognised as the "common factor" with a number of reported issues involving various ISP's who would be unlikely to have any occasion to talk to each other?

Would an OR engineer change out the DSLAM backup batteries without establishing that the previous set were actually being charged?

 5 
 on: May 27, 2022, 06:44:41 PM 
Started by Psimpson144 - Last post by burakkucat
Welcome to the Kitz forum.  :)

. . . I've noticed that the connection drops out every 7 hours (approx) and is then off line for 70-80 mins. . . .

That is an interesting observation. j0hn's suggestion as to the cause make sense to me as a set of SLA batteries, when brand new, could maintain the equipment in service for eight hours.

If you would be willing to disclose the cabinet number (and/or your location) we might be able to find some information regarding the infrastructure hardware.

 6 
 on: May 27, 2022, 06:39:18 PM 
Started by Weaver - Last post by Weaver
Damn, lost that section now; time has moved on and the modem only keeps a certain window of data, doesnít go back far enough. Iíll be watching out for another such event. All good recently.

 7 
 on: May 27, 2022, 06:27:46 PM 
Started by burakkucat - Last post by burakkucat
by, clutching a

 8 
 on: May 27, 2022, 06:26:32 PM 
Started by Psimpson144 - Last post by j0hn
It could be that the DSLAM has lost power, is lasting 7 hours on batteries and the down time is batteries being changed?

I can't think of any other reason for such a gap in service so frequently.

Check the local roadworks website for works upcoming next to your cabinet.

 9 
 on: May 27, 2022, 06:25:56 PM 
Started by burakkucat - Last post by burakkucat
compliance

 10 
 on: May 27, 2022, 06:25:04 PM 
Started by burakkucat - Last post by burakkucat
clippers

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