I have a UPS that was powering my Monitor and CPU unit whenever main power was failing. I also have a modem that provides internet connection to the entire house. Now, the modem gets power from mains, so whenever main power goes off, there is no internet connection. I wanted to prevent this from happening because I am having online exams and a power failure(hence no internet) is a disaster for me.
So, I stopped using the UPS for Monitor and CPU unit and I tried to use it for my modem. But UPS is not able to provide power to it. UPS is working fine and so is the modem. Let me provide some more information-
The UPS model is not listed on it's official site(MicroTek) anymore, however it can be found in an Indian E-Commerce site named Flipkart-Here. In case the link goes down, here is the picture of the specs:
- The UPS(say X) has input specs- 230VAC, 50/60 Hz, 4.5A and output specs- 230VAC, 50/60 Hz, 2.9A(Also DC Voltage 12V is mentioned which I do not know why since output is AC). It has one plug that goes into mains for charging itself and 3 output sockets giving AC output.
- The adapter(say Y) or plug that gives power to modem from mains has input specs- 100V-265V Max, 0.3A, 50 Hz and output specs- DC 12V, 1A
- An adapter(say Z) that charges my phone has following input specs-100-240V, 50-60 Hz, 0.35A and output specs- 5V(DC presumably as output cable is micro USB), 2A
So, what is astonishing is that Z works perfectly with X and mains(hence my phone gets charged), Y works only with mains, when Y is plugged into X, modem doesn't power up. And you can notice that the specifications of Y and Z are very similar. So, I'm not able to understand why UPS can't power up the modem.