If you value anything at all stay away from Ceragon. Probably the worst brand of hardware and definitely the worst support I have encountered.
Took them nearly a year to fix an ARP bug that locked up the radio, took half a dozen people, two of which flew on site to see it for themselves. On 1/18/09, 3-dB Networks <wi...@3-db.net> wrote: > To expand on one point made by Bob... > > If you need to add T-1's you can do that using Psuedowire with some boxes > from Dragonwave... but you will probably find the ODU/IDU combo a bit easier > to play with. > > To add a point for an all outdoor version CAT5 cable is much cheaper than > LMR-400 and others... > > Daniel White > 3-dB Networks > http://www.3dbnetworks.com > > >>-----Original Message----- >>From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >>Behalf Of Bob Moldashel >>Sent: Sunday, January 18, 2009 4:38 PM >>To: WISPA General List >>Subject: Re: [WISPA] Ceragon, Dragonwave and whatelse? >> >>Well....a couple of notes... >> >>I personally would use an all ODU version because it makes servicing a >>breeze and also swapping out a bad radio quick and simple. No guessing >>about is it the indoor unit, is it the outdoor unit, is it the interface >>cable??? Get an all ODU like the Dragonwave Horizon and you run CAT5 >>and you're done. If you get a cable issue you either can't log in or see >>no handshake with your switch/router or..If one of the POE lines are bad >>your radio will continue to reboot. Troubleshoot the radio on the ground >>with a patch cable and you rule out your cabling system. >> >>Like was mentioned elsewhere here if you are concerned with theft you >>can lock the radios in place. This can be done by putting a security >>screw in place of the grounding screw and use a cable assembly to lock >>it up. If the theft concern is that high you should probably consider >>another location. >> >>With weather being a concern you could always install a second parallel >>link on the same antenna using a DPRM mount. Then if one link fails the >>other could be engaged to carry the traffic. >> >>I do not see this link really working (high 9's reliability) without 4' >>antennas. That of course leads to new mounting issues. At 6 Ghz. you >>are looking at 6' minimum dishes. Figure 600-800 lbs per antenna with >>mount not to say the least about cost, shipping and installation. >> >>I personally like Dragonwave for 2 reasons. 1 - The service facility is >>in this part of the hemisphere which allows me to get equipment >>overnight in emergencies. 2 - One year advanced replacement is only >>$500/year per radio. Allows me to sleep easily. >> >>This does not mean I do not like Ceragon. They are just doing some >>growing pains things at the moment and most of the stuff is serviced >>overseas unless it is an interface or something simple. >> >>Dragonwave support is very responsive though you do have to leave your >>name with a service and they call you back. I have installed more than >>45 Dragonwave links in the past 2 years and have only had 2 failures. >> >>There are other options but history, price or delivery will kill them as >>an option. >> >>And stay away from equipment that does switching for you. Do all your >>control external to the radio. >> >>Bob >> >> >> >> >>Paolo Di Francesco wrote: >>> Dear All, >>> >>> we are considering to move to licensed frequencies for back hauling >>and >>> therefore some hints would be really appreciated. We are looking at 2 >>> main manufacturers (Ceragon/Dragonwave) so the problem is "which one >>> fits better for our needs"? >>> >>> Just to summarize: >>> >>> a) links are around 20-25 miles >>> b) antennas: the smaller the better >>> c) robustness is very important >>> d) average life: 3 years >>> >>> >From what I have read in the data sheets I have done the following >>> considerations: >>> >>> 1) Dragonwave Horizon is nice but only if your site is well protected >>> from "sabotage and stealing". The "all outdoor" approach is nice but >>it >>> has the drawback that if somebody takes the whole unit they will have >>a >>> brand new unit working. With the IDU/ODU approach they will have only >>> half of the "banknote", so after the first or second time, they will >>not >>> spend time having something useless. >>> 2) Dragonwave Horizon can be a problem if you don't use fiber from the >>> unit down to your switch. In few words, we have sites with huge amount >>> or EM fields, so even using shielded cables (e.g. Belden 1300A) we get >>> only few ethernet megabits. So we should use fiber to go up the tower, >>> but maybe be IDU/ODU approach is more robust (comments welcome). >>> 3) All outdoor means that when you have to re-use the devices >>somewhere >>> else, you have to buy a whole new thing instead of just swapping the >>ODU. >>> 4) In any case the (all outdoor or IDU/ODU) when the tower is frozen >>> (and when I mean frozen I mean a whole block of ice) then it does not >>> change much, you have to wait the better season to work on that. >>> 5) Performances look more or less the same. >>> 6) I don't know much about prices, I have looked on some website, I am >>> still exploring this aspect >>> 7) Is anybody using the software-switch capabilities on this devices >>or >>> just using them as transparent bridges for your router/switch? Do you >>> need to reset them often? >>> >>> Comments are welcome. >>> >>> Am I missing some other good brand? >>> >>> Thank you. >>> >>> >> >> >> >>------------------------------------------------------------------------ >>-------- >>WISPA Wants You! Join today! >>http://signup.wispa.org/ >>------------------------------------------------------------------------ >>-------- >> >>WISPA Wireless List: wireless@wispa.org >> >>Subscribe/Unsubscribe: >>http://lists.wispa.org/mailman/listinfo/wireless >> >>Archives: http://lists.wispa.org/pipermail/wireless/ > > > > -------------------------------------------------------------------------------- > WISPA Wants You! 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