Good quality, low cost surge protectors

E

ecborgoyn

Active Member
Any recommendations for good quality low-cost indoor and/or outdoor surge protectors for gigabit (CAT5/5e) POE+ (11at) circuits.  Best to have 110 punch-down connections but I could deal with RJ45 connections if the price was right.  I see that Ubiquiti has a low cost device, but it's RJ45 and not 11at POE compliant.  But, some of the circuits would only need 11af POE...  My thought is to install 11at capable SPD devices.
 
Residential application and cost is always an issue.. (sorry, I'm frugal).
 
The circuits would terminate at a rack mount switch, but my preference is to keep the SPD's OUT of the rack for surge isolation sake.
 
Thoughts or recommendations?
 
 
 
Thanks.  Looks like Ditek has the broadest product line..  I knew about them but was perhaps looking for lower price-point.  Best price I can find for the Ditek CAT6/POE+/110-block is about $85.  A bit pricey considering the component costs, but SPD's tend to be expensive in general.  Ditel has a gigabit/POE+/RJ45 device that retails for about half the price.  I don't need the 10GB spec and I can work-around the different termination mechanism...   Decisions..  This device is also available in a multi-device panel or rack-mount version.  Maybe I don't understand the normal wiring configuration.  Most data SPD's have RJ45 connectors.  It would make more sense to me to use 110-block's to terminate 'field cables' directly at the SPD.  Maybe I'm missing the use-case.
 
I was able to find ditek devices on ebay for very good prices but did get one that didn't work. I don't know any way to test a surge suppressor and they were all claimed to be new but one device just didn't pass a signal through it. 
 
Mike.
 
Testing is most likely destructive.  Sorry to read about the ebay device quality issues.
 
I'll probably just need to bite-the-bullet and spend the SPD 'insurance' dollars..  I have to run 2 or 3 100MB POE drops to my barn/shed (for new surveillance cameras).  I thought about a small ethernet switch in the barn and only one link to the switch in the house.  It's only about a 35' conduit run, but I've been beefing up my SPD's around the house recently.  A switch in the barn would to be POE+ powered and have extended temp range.
 
I also plan to install some sensors on my ElkM1G system out in the barn.  Same SPD issues.  Here I would put an input expander in the barn and run the Elk 485 bus (with appropriate SPD).
 
I have a detached garage with two cat6 cables connected between buildings. One is used to carry IP cameras, computers and iptv and the second is to carry rs-485 data bus for the M1. The ethernet uses two switches in the detached building and the rs-485 is connected to an Elk data hub with input and output expanders and a keypad.
 
I currently have the IP protected by a ditek spd but haven't gotten around to doing the rs-485 cable yet. From what I have read it is best to install spd's on each end of the cable as close to where it enters the building as possible. However, any protection is better than no protection.
 
Mike.
 
ecborgoyn said:
Testing is most likely destructive.  Sorry to read about the ebay device quality issues.
Click to expand...
I don't blame ditek for the failed device, you never know what you're getting on ebay.
 
I just looked my my old ebay listings and see that I bought a Ditek  DTK-LVLP 4 and  a DITEK DTK-110C6A One was for ethernet and the other for rs-485 but I don't remember the specs of each off the top of my head.
 
Also a correction to my earlier post - I protected both cables (not only 1) on the garage end but have yet to put spd's on the house end of the cables.
 
Mike..
 
Thanks for the details.  I fully understand not having the time for the projects....  I purchased SPD's for AC power lines to/from the barn a few years ago and still haven't installed them.  (both a power feed TO the barn and a genset feed FROM the barn).
I'd at least like to get SPD's on the house side of the data cables.   But ideally at both ends.  Hence my interest in cost-effective devices.
 
ecborgoyn said:
Thanks for the details.  I fully understand not having the time for the projects....  I purchased SPD's for AC power lines to/from the barn a few years ago and still haven't installed them.  (both a power feed TO the barn and a genset feed FROM the barn).
I'd at least like to get SPD's on the house side of the data cables.   But ideally at both ends.  Hence my interest in cost-effective devices.
Click to expand...
I lost a set top box and an ethernet switch in the house to lightning shortly after putting the cables underground which got me off my butt to install spds in the first place. I had to learn the hard way. Thunderstorms are predicted here this weekend and i hope that you don't have to hear me crying here in teh next few days. Hopefully the devicfes in the garage can drain enough current if and when necessary.
 
Mike.
 
You must log in or register to reply here.
Back
Top