I have an RB333 currently with 3x R52s, Two running at 2.4Ghz, the 3rd at 5.8Ghz Turbo
It appears one of the 2.4Ghz cards has problems. Signal from clients has dropped around 15db, when running a scan from the other two cards in the same board i get -30 RSSI from a working card and -45 RSSI from the dead card.
Im looking at getting an XR2, SR2 or a R52H to replace it and get more power at the same time, my question is which do you reccomend and and will all 3 fit in an RB333? will the RB333 power them all OK?
Thanks, currently i only have 18v 600mA over 20m of POE cable, is this under powering the RB333?
I’m leaning towards the XR2 as its 600mW… i would like the extra power but ive used some 400mW Seano NMP-8602’s in the past and found them to just kill everything else around them on all 2.4Ghz channels.
Has anyone had experience with the XR2 next to other 2.4Ghz cards? do they effect other cards on the different channels etc?
18V 600mA seems a little bit low, because it’s just ~11W of power. The RB333 itself uses ~3W, one R52H could peak up to 3W while XR2 power consumption could build up even more. Low power could result in instability and frequent reboots, hangs and so on, but you would probably have encountered them already..
Speaking of cards, R52H is kinda nice, works stable, performance is quite ok, but I’ve heard some complaints about them loosing power (there’s even an article which explains how to check if your R52 is broken). As for ubiquiti products, can’t say anything from my personal experience, because I never used them, but actually feedbacks I have seen on internet were less or more positive.
The trashing of all (or many) wireless channels might occur with cheap and poor wireless cards, which use low quality (often high-power) transmitters, as well such thing often happens with external amplifiers. R52H and SR2 shouldn’t do such a thing, as for XR higher power might result in more instability. But I don’t think it would expand on more than two side channels..
yeah, sr2 is a good card, maybe the best. works fine with default tx-power.
same with xr2. using these cards we have to use default tx-power, good antennas and 10-15 stations connected to a card maximum.
The XR2 card is thicker and can only be inserted in the top pci slot of the x33 boards, for your config. I have a similar setup using a 433 board but I am unhappy with the performance. It appears to be really bursty for me with 2 x SR5 (backhaul) and XR2 for clients. I am more concerned once summer hits and temps get back to the +30C.
SR2 is much more sensitive to failures like losing power and so (diversity switch problem). XR2 should be much more durable and it is stronger, obiously.
Regarding number of associated clients, both can work fine with much higher number than 10-15 but each client has to have fine signal and connection speed. One bad client and performances go much down.
Here is cite from another thread about XR2 vs. SR2:
3 XR2’s or SR2’s will fit but it’s not recommended or advised. It’s a tight fit.
I’m looking at the same senario and opted to replace an RB433 / 3 R52H’s with 3 RB411AH’s with 1 XR2 in each.
I’ve never seen a performance problem with SR2 or XR2. Everything MUST be grounded good or you’ll end up with a bunch of dead cards as they are very sensitive.