Tuesday, May 17, 2011

UPS Part 2 of 2

I have my PC protected on Part 1 of 2. I have to get another UPS for my Synology 209 and 1511+...


APC Back-UPS Pro BR900GI, 900VA or 540W in standard package (2 x power jumper cable and 1 APC proprietary USB data cable).

Size comparison with Back-UPS CS650...





The Back-UPS Pro series is quite similar in technical spec (i.e. output wave form) with Back-UPS but with few additional/enhanced features:
  • It comes with a LCD screen.
  • Protect against input voltage fluctuation without using battery. In other words, it readjusts and regularize the input (boost when TNB's supply is under voltage or trim when is over voltage) and outputs a steady consistent voltage value to the connected devices. The Back-UPS series does protect devices against voltage fluctuation by using the battery, therefore it degrades the battery lifespan faster than the Pro series.
  • It has intelligent charging that protects and maximizes the battery performance and lifespan.
  • In addition to phone line protection, it also has Ethernet (gigabit) shield protection.
  • Intelligent outlets. As you can see from the photo above, some outlets are controlled by the master outlet. These outlets will be shut down when the master outlet is off. This provides the user a "one-button" convenience, for instance, one turn on the PC and the printer (or ADSL modem) will be turned on as well.
  • It run self test automatically bi-weekly. It will alert user when there is any component failure, making proactive protection to ensure it's up and running when user needs it most (during blackout).

Similar to Back-UPS CS650, the battery is shipped in disconnected mode...




I doubt I would be able to fit in after market battery like the old UPS, the shape of the battery and compartment, plus the connector seem proprietary to APC.

Turn the battery upside down and it turns from red to green, indicating right placement, direction, polarity and is safe to connect and power it up...


The battery shipped with some juices...


I usually drain the charge completely, make a full recharge with no connected devices before I put the UPS onto production.

The screen can be toggled for few status info...






The input voltage of 236V operating on 50Hz frequency; the UPS reported 6 event logs; it can last for 70min with current load of 80W, which is 15% of what the UPS is capable to handle (total 540W).

I connected the bundled USB monitoring cable to one of the NASes...


The amount of seconds translates to 71min, pretty accurate to what the UPS reported.

I also enabled UPS server feature on the NAS with UPS (connected with the USB monitoring cable) so that the other NAS (as UPS client) can get the UPS status and shut down gracefully when the UPS is draining out.

On the other NAS (UPS client), I pointed it to the NAS with UPS connected...


Now both of my NASes (also the wifi router) are fully protected.