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Question of the Day: What's the most interesting small town you've visited in South Africa?
Local exchanges and loadshedding
- Thread starter Dr Who
- Start date
Depends where you are located. I know most/all exchanges have UPS's however, the rural ones tend to die out after a short while as their batteries aren't go great anymore. If you're close to the city, you'll be fine...
Where I previously lived (Rural Drakensberg, KZN), the exchange would hold out for about 25 mins and then die...
TehStranger
Executive Member
If the UPS ends up in your veins you're doing it wrong.
Can't speak for all, but in Randpark Ridge I have internet through load shedding with my router on the inverter circuit.
Dan C
Honorary Master
What ? You say I live in a Rural area ?
Ours dies about 15-20mins into loadshedding, and yes I'm in a normal suburb.
MickeyD
RIP
Correct.
MSANs and ISAMs also have their own backup power that should last around 8 hours but realistically last around 4/5 hours under strain.
eddief1
Expert Member
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- Feb 26, 2008
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Get used to this more often guys as Telkom move away from a centralized exchange to using the remote MSAN units. Next time one is open in your area, go take a peak, do the math and be surprised.
EDIT: Mickey beat me to it
EDIT: Mickey beat me to it
You live in EL?What ? You say I live in a Rural area ?
Ours dies about 15-20mins into loadshedding, and yes I'm in a normal suburb.
Most of that province is rural
Do you know how big these backups are for IMAX and normal DSLAMS? I get served by a IMAX and it holds fine for 2 hours and I make sure I download during those 2 hours of loadshedding too.
ld13
Honorary Master
Our(my?) problems start once the power comes back on - my line successfully syncs, but no ISP account can manage to establish a connection for hours after a load shedding event. I report the problem every time, then it starts working again, they close the fault and I open one again the next time... 
Our(my?) problems start once the power comes back on - my line successfully syncs, but no ISP account can manage to establish a connection for hours after a load shedding event. I report the problem every time, then it starts working again, they close the fault and I open one again the next time...
Yes happened to me a couple of times after loadshedding.The line will sync but no account authenticates. Everytime I would see under the Telkom notices Birdswood IMAX outage and after the tech fixes it. then next time same story. Eventually looks like theyr replaced the batteries as it no longer goes down during loadshedding.
MickeyD
RIP
Do you know how big these backups are for IMAX and normal DSLAMS? I get served by a IMAX and it holds fine for 2 hours and I make sure I download during those 2 hours of loadshedding too.
IMAX or ISAM?
IMAX is in the exchange and should have plenty of backup power... banks of batteries as well as a big-ass diesel generator.
ISAM will have batteries within the cabinet on the street corner as per my earlier post. If the ISAM is in the exchange (central office) then it will be as above.
Telkom call it a IMAX and even Telkom rep said I'm connected to the Birdswood IMAX but I can assure you it just looks like a normal dslam because the exchange is very far away in another suburb....
MickeyD
RIP
IMAX in a remote cabinet... tricky in terms of what batteries they have in that cabinet.
The MSAN/ISAM cabinets are standard.
Cool because it used to die like within 10min but after many faults logged they fixed it and now last the full duration of loadshedding here in Rbay which is just 2 hours daily.
sybertiger
Expert Member
mine stays on at the day time,dont know about the night
starts up gen,and it all works that is at daytime tho
dont have a gen at home
starts up gen,and it all works that is at daytime tho
dont have a gen at home
All exchanges run on DC power, they have large battery banks to supply continous power & then the generators kick in. If you're on a curb side kit for example that will only last as long as the batteries have charge.