I wish there was a 48vdc version of the AD-155B. On Mon, Feb 6, 2017 at 8:23 PM, George Skorup <[email protected]> wrote:
> The BCMU360 is decent for small to medium sized sites. And it's jumper > selectable between 24 and 48 volts. There's an internal DC-DC converter to > take the 12VDC battery up to your selected output. The charging is limited > to 12W. I have a few with 30-40Ah of battery connected. Recharge time is > usually 12-14 hours. I had a 95W site running on the 37Ah for almost 5 > hours. It never went down. Again, read the fine print. It's limited to 240W > continuous and 360W for 3.5 minutes. If it's in a not so temperature > controlled cabinet, don't even try to put more than 200-225 watts of gear > on it. I have a few sites running a couple ApexPlus radios (75W a piece x > 2) and other misc stuff, 450APs and a couple ePMP PTPs. It's near the limit. > > The regular BCM is a different story. There doesn't appear to be any > charge current limiting. I'm fairly sure I killed a TSP360. I hooked up a > string of 20Ah batteries to a BCM48 and it was pulling 10-12 amps out of > the power supply. I could smell it starting to cook. I gave up on it. I do > only the BCMU360 and a Mean Well SDR-240-48 now. Really small cheap-o sites > get Mean Well AD-155's. > > For anything over 200 watts, do yourself a favor now and look at real > rectifier solutions from Alpha, Eltek, Emerson or the new ICT 1U shelf > which looks pretty good. That's where I'm going for the sites that need > more power and/or more run time. A good rectifier shelf will have no > problem with 100+ Ah of batteries and proper maintenance of them, like > equalization, etc. > > On 2/6/2017 3:53 PM, Josh Baird wrote: > > I was simply referring to the time necessary to actually charge the string > of batteries.. in your case, it doesn't sound like that is an issue (and > it's not in my environment most of the time either). I'm not sure if there > are other problems with using a large string like that on the BCM - but > maybe someone more knowledgeable like George or Ken can chime in? > > Josh > > On Mon, Feb 6, 2017 at 4:32 PM, Adam Moffett <[email protected]> wrote: > >> Interesting....we have BCM48A and TSP-600 with 4x100ah. >> >> We're not normally getting back to back power outages, so I don't really >> care how long the charge time is. >> >> How are we pushing it other than the recharge time? If we're doing >> something wrong I really do want to know. >> >> >> >> ------ Original Message ------ >> From: "Josh Baird" <[email protected]> >> To: "[email protected]" <[email protected]> >> Sent: 2/6/2017 4:15:10 PM >> Subject: Re: [AFMUG] OT: Good source to buy these TSP 360-148 >> >> >> Yeah - I'm not sure the BCMU or BCM is the best solution for that large >> of a battery string. If it did work (I guess it probably would), it would >> likely take weeks to charge a string of 4x100Ah batteries. You may want to >> take a look at Eltek/Emerson or the new ICT shelf that was recently >> announced on this list. >> >> The largest string we have on the BCMU is 4x33Ah, and I have even been >> told this is pushing it, especially with decent charge times. >> >> On Mon, Feb 6, 2017 at 3:30 PM, Paul McCall <[email protected]> wrote: >> >>> 48v. can be as much as 5 or 6 amps on some tower. 120 to 150ah >>> batteries (right now 2 of them, but was moving to 4) >>> >>> >>> >>> *From:* Af [mailto:[email protected]] *On Behalf Of *Josh Baird >>> *Sent:* Monday, February 6, 2017 3:25 PM >>> *To:* [email protected] >>> *Subject:* Re: [AFMUG] OT: Good source to buy these TSP 360-148 >>> >>> >>> >>> How large are your batteries? How large the load? >>> >>> >>> >>> On Mon, Feb 6, 2017 at 3:16 PM, Paul McCall <[email protected]> wrote: >>> >>> Hey guys I am completely new to Traco, so am feeling my way through. It >>> seems like power supply itself is not relevant. But the BCM is. Someone >>> suggested using a TSP-BCM24 or TSP-BCM48 instead if I already have 2 >>> or 4 batteries in place, >>> >>> >>> >>> What say you? >>> >>> >>> >>> *From:* Af [mailto:[email protected]] *On Behalf Of *George Skorup >>> *Sent:* Monday, February 6, 2017 3:08 PM >>> >>> >>> *To:* [email protected] >>> *Subject:* Re: [AFMUG] OT: Good source to buy these TSP 360-148 >>> >>> >>> >>> Not sure about the HRP. I've had SDR's running for years now. >>> >>> On 2/6/2017 2:01 PM, Paul McCall wrote: >>> >>> The meanwell is really a good alternative to this? Just as good? >>> >>> � >>> >>> *From:* Af [mailto:[email protected] <[email protected]>] *On >>> Behalf Of *Ken Hohhof >>> *Sent:* Monday, February 6, 2017 3:00 PM >>> *To:* [email protected] >>> *Subject:* Re: [AFMUG] OT: Good source to buy these TSP 360-148 >>> >>> � >>> >>> Or Mean Well HRP series. >>> >>> � >>> >>> *From:* Af [mailto:[email protected] <[email protected]>] *On >>> Behalf Of *George Skorup >>> *Sent:* Monday, February 6, 2017 1:45 PM >>> *To:* [email protected] >>> *Subject:* Re: [AFMUG] OT: Good source to buy these TSP 360-148 >>> >>> � >>> >>> PSUI is who we order Traco stuff from. Do you need 360W? The Mean Well >>> SDR-240-48 is an alternative. That's what I'm using with the Traco >>> BCMU360's. If you read the fine print, it's worthless to put 360W behind >>> the BCMU. They're rated 240W continuous and 360W for 3.5 minutes. And the >>> SDR-240 is ~$70 vs ~$270 for the TSP360. >>> >>> If you really need it, there's the SDR-480-48, which is only 1/2 the >>> price of a TSP360. >>> >>> On 2/6/2017 1:28 PM, Paul McCall wrote: >>> >>> Been buying them from one source and they are out of stock.� Need to >>> get a few on the road today if possible >>> >>> � >>> >>> TSP 360-148 >>> >>> � >>> >>> Paul McCall, President >>> >>> PDMNet, Inc. / Florida Broadband, Inc. >>> >>> 658 Old Dixie Highway >>> >>> Vero Beach, FL 32962 >>> >>> 772-564-6800� >>> >>> [email protected] >>> >>> www.pdmnet.com >>> >>> www.floridabroadband.com >>> >>> � >>> >>> � >>> >>> � >>> >>> >>> >>> >>> >> >> > >
