[c-nsp] Fixed 75ohm Attenuators

[Greg Boehnlein]

On Tue, 25 Oct 2005, Robert Boyle wrote:

> 
> I know people were discussing attenuator cables here a few weeks ago. I 
> recently ran into a problem with massive LCVs on a PA-MC-T3 card connecting 
> to our own mux which is in the same rack. I fixed the problem and now have 
> zero errors after adding 13db of attenuation. The cisco attenuator kit 
> (PA-ATTEN-KIT) is a direct ship only item and it costs about $125-150 with 
> a 2-3 week lead time. I found another vendor which has the same attenuators 
> in stock and ships the same day for a comparable price. Just in case anyone 
> needs them.
> 
> http://www.rf-attenuators-dividers-terminations-switches.com/JFW_75ohm_Fixed_Products.aspx#75FP-XXX-2G%20BNC
> 
> I have no financial interest in or affiliation with them. I had an 
> excellent experience with this company and I just wanted to pass on the 
> info. It was hard to find attenuators with the right frequency response, 
> attenuation value, and M-F BNC connectors, but they have them in stock.

That is really expensive. I bought two sets of attenuators at $2.10 apiece 
in 2 db increments from 2 to 20 db. Total cost was under $50 w/ shipping.

These were the parts: 
http://www.e-meca.com/rf-attenuator/fixed-attenuator-bnc.htm

So you'll want part numbers:

675-02-2
675-04-2
675-06-2
675-08-2
675-10-2
675-12-2
675-14-2
675-16-2
675-18-2
675-20-2
 
> If you have never needed them, check out these pages from Cisco and 
> remember this in the back of your head for when you have massive errors on 
> a circuit which the telco loops as clean even after you replace the cables 
> and the PA. :)
> 
> http://www.cisco.com/warp/public/121/d3e3_tshoot.shtml
> 
> http://www.cisco.com/univercd/cc/td/doc/product/core/cis7505/portadpt/multi_ch/mc_t3/2695prep.htm#wp1026903
> 
> http://www.cisco.com/univercd/cc/td/doc/product/core/7206/fru/12884att.htm
> 
> -Robert
> 
> 
> Tellurian Networks - The Ultimate Internet Connection
> http://www.tellurian.com | 888-TELLURIAN | 973-300-9211
> "Well done is better than well said." - Benjamin Franklin
> 
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