atcomsystems.ca/forum Forums General General Telephone & Systems Information Battery Backup

This is the one that I went to. The same size (600)from Minuteman had a lot of 30 day or less charger failures. That has been since Pana bought them and put the Minuteman name on their Chinese products. APC just doesn't cut it on their small ones. I even tried Leviton but they are as bad as Minuteman. I've had good luck on the CH so far.

Thanks Ken. :toast:

I think Tony has some valid questions. Some UPS units put out a square wave and that can cause problems with some KSU's.

Other KSU's can use the battery units that plug directly into the KSU power supply providing a long reserve time.

Express Communications

Excellent point, Larry. On that motel job with the TransTel the Minuteman Pro 1100 ran for more than two days during the ice storm last year. This is the one I use for the bank jobs where there is more than just a KSU.....

That is what I was getting at. We usually use a combination, depending on those criteria. We only install and service Toshiba systems, so we use Telcom1.net BBU's for our systems and if they want more up-time, we'll install multiple units with. Then if they have small hub, switch, router, etc. we'll install some >$100 wall mountable unit from APC. If they have more sensitive equipment that must have a longer up-time, then we'll install a specialty unit.

We use true sign wave for all our installs. We either put up a shelf or there is one provided. We have been using the Leviton and Tetrex. Don't know the part #'s but they are a 750 for the smaller and for the bigger jobs we use an 1150. With the True Sign Wave we have voltage regulation, surge and battery back up. We need that here in Central Florida. They are great for the brown outs, which we have a lot of.

Cosmo

Kevin, we haven't had rolling blackouts for years. Just your normal every now and then power outages.

Only the phone system will be plugged into the battery backup. This will go on Panasonic tda50, NEC DSX and ESI. Would like about 30 minutes of uptime

Maybe it's just because I'm powering servers but we never voluntarily install anything smaller then 1500va. Usually when the customer wants smaller we let them know it's against advisement and then do whatever they want.

I've been a fan of the MinuteMan Endeavor and EnterprisePlus rackmounts and the Pro-E stand alones. Like Ken said I've been noticing some change-up's in the product offering but haven't seem much change in the stuff I'm using. The EnterprisePlus got a little bit of a case remodel but the guts seem the same.

I used to be a fan of TrippLite but they kind of fell to the wayside for some reason. Became hard to buy their stuff and they started getting expensive. They still make decent stuff and have some unique or specialty-purpose UPS'.

Ken: Those Eaton UPS units are actualy MGE units in a different case. Eaton bought the small UPS division of MGE a while back. Definitely good stuff. I also liked Adler but they're so damn hard to find!

For small installations when wall mounting is required I've used this:
APC BH500NET

Note that this is a stand-by, not an on-line (true sine-wave) UPS, ie battery power switches on in the absence of AC. You gain in sturdiness what you lose in responsiveness.
It has worked as advertised when there was need to.

As a side note, you may want to tape over the unused outlets on the UPS to prevent "others" from plugging in equipment that may draw too much power from the UPS on battery and trip the overload or steal battery life from your phone equipment. I've seen this frequently in the IT field. Of course if the UPS has a non-battery backup side of outlets, those would be fine for regular uses.