FSP EP 1000 UPS review - Why need an UPS these days?

  • Published in Case/ PSU reviews

First Look

Don’t expect special packaging when it comes to an UPS. For example, the EP-1000 comes with an assortment of cables, including: power-cables, USB, and serial-COM cable. The USB is used to connect the UPS to the PC, and with the added software (that’s included in a package CD or available online) it can remotely monitor and manage the UPS, even via LAN or Internet.

 FSP UPS EP 1000 - Accessories

As for the power-supply itself, it doesn't look very different from other mid-range UPSs. Instead of featuring any kind of display, FSP opted to use three LEDs: red, yellow and green - each indicating the UPS status. Above them, is a slightly recessed power-button.

FSP UPS EP 1000 - Front


Turning it around, you get a number of connectivity options. EP-1000 comes with 2-IEC320 plugs and 2 Shuko type power-sockets. At the top there is an RS-232 serial port (a connector that is rarely encountered on modern-day MOBOS), and right next to it, the USB socket. Lastly, you have 2x RJ45 ethernet sockets and a reusable 10A automatic fuse.

FSP UPS EP 1000 - Backside

The EP-1000 is a line-interactive UPS, and is equipped with AVR (automatic voltage regulator), which is an internal regulator supposed to provide stable input voltage from the mains without switching to battery-power.


An UPS should offer surge-protection and battery back-up protection. When the AC mains are fine, it doesn’t do anything else but provide surge-protection, and depending on the model voltage regulation. However, when the main fails, it switches over to a back-up power supply, usually via its SLA batteries (sealed-lead acid), which are akin to a car batteries, but feature gel electrolytes instead of liquid sulfuric acid. 

FSP UPS EP 1000 - Side 

FSP’s Line Interactive EP1000 features 1000VA / 600Watt power-capacity. VA refers to AC or apparent power-rating, while Watt is the DC or actual power-used rating. For most batteries, the Watt figure is usually a smaller number – about 60% of the VA figure, which is clearly evidenced by the EP1000.

This power is given by two Shimastu NP7-2 batteries manufactured by Chinese operator Shimastu Electronic Technology, with a capacity of 7 Ah and the operating voltage of 12V. To replace these two batteries, you would need to dissassemble the UPS, and that's not necessarily a good idea, since you could get electrocuted when trying to do so.

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