BSNL AONT-100c, AONT ups Backs up!?


New Member
Nov 1, 2014
Hey there i just got the BSNL FTTH connection with unlimited plan 675/- 2mbps upto 5 gb and 1mbps beyond!

They fitted me with AONT-100c modem with AONT ups that came with it! Does this provides backup in case of power failure!? when i checked manual it comes with a battery and it mentions it provides backup to the modem!!

It has 3 led indication AC-green, DC-green, Battery-Red also there is no backup during power failure, when i asked the BSNL service men about it he said it act as some sort voltage stabilizing unit and does not provide backup power of such!!! is it true!? i would like to know!!

Please respond !!
Last edited:

The Godfaather

New Member
Aug 19, 2018
The ups provided is for converting the wall AC supply to stable DC. The battery inside is used in the circuit as clamper for coverting AC to DC.