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Blowing Network Cards - in Iraq

post #1 of 9
2/3/05 at 5:57am
Thread Starter 
Hi All,

Need some big-time help here...

We have numourus D800's and LAT C840's in our operation cell, along with GX470 desktops...

We have replaced to date 10 NIC cards or had to put PCMCIA cards into Lappys because they have been getting blown. All the techs here believe the cards are getting toasted through the Cat-5 cables..

Is there any way to build a filter to protect the NIC's?

Any help would be greatly appreciated!
SFC U
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post #2 of 9
2/3/05 at 5:49pm
Wish I knew....I will do a search and see what I can come up with to help....Be safe

Nick

Niagara Falls Canada and PROUD OF THE USA ARMY
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post #3 of 9
2/3/05 at 7:02pm
Steveuzi,

Wish I could help you folks, but in the meantime . . . THANKS to ALL!
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post #4 of 9
2/4/05 at 12:26am
SFC U - APC makes a device that provides surge protection for connected RJ11 & RJ45 cables.

Keep 5 yards.
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post #5 of 9
2/4/05 at 2:31am
I guess you could try and be crazy, install a fuse between the two wires... Or if you can get a small enough capacitor, solder them between whichever two you think are delivering current. The problem with that is, you'll probably attenuate the signal, and either slow it down, or make it unstable. Good luck!
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post #6 of 9
2/6/05 at 3:12pm
There is prolly sand in the network hub lol
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post #7 of 9
2/8/05 at 8:02am
Thread Starter 
Dust... that is a friggin understatement! ! We have CASES and CASES of canned air to clear these computers out... I actually ordered some fine filtering material that we are going to use to put over the fan ports....
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post #8 of 9
2/8/05 at 9:30am
I agree that the LAN surge protectors are useful. I imagine that you have a grounding issue. This may be caused by dust, but likely is from a 2-3 prong adapter , etc. I imagine that your PCs are becoming the path of least resistance. Not good. I suggest that you work your way back from the PC and check that each of the devices (hubs, routers, etc) is properly grounded. If your network cables are laying on the ground, get them up off the ground and certainly out of any damp spots or put them in some kind of conduit. Before any of you junior engineers or geography majors begin hipshooting, I am a communications soldier and just came from a year in Iraq. Good for you SFC U, way to use all available resources. Hooah!
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post #9 of 9
2/8/05 at 9:34am
Quote:
Originally Posted by Steveuzi
I actually ordered some fine filtering material that we are going to use to put over the fan ports....
Try pantyhose. For a more complete protection for your D800's you might look at these cases:
http://protectcovers.com/grabngo_laptop_cases.htm

The largest one pefectly fits D800's size. These are designed to protect the laptop while in the case and are meant to be kept there all the time. When opened , there is access to all the ports (even at the back where there are two velcro flaps) except of course the bottom where the velcro holds it together.
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