Re: [enterasys] AP 1602

Fri, 20 Mar 2009 04:58:22 -0700

Title: AP 1602

Hi,

I can't speak from authority, but the 1602 is a rebranded MP 372 (Or is it MP 422?). It's dual radio with .a as well as .b/g

The choice of 1602 has to do with warranty and branding of the installations. I don't find the price is that different.

Back when these projects were costed there wasn't much of a price difference. I think the MP-422 wasn't out then, but the MP-372 was.


I can't believe the amount of away messages one receive when posting on this list!


Kind regards,

Kim Pedersen
CNCS Ltd.
Fitzville
Haggatt Hall
Barbados
+1 246 429 8682




Borel, Reese wrote:

Kim,

Out of curiosity, the 1602 is a Trapeze designed product?  Is it based on the Trapeze 371? Single b/g radio?

 

I know, curiosity killed the cat. . .  Just wondering, due to price, why you would choose the 1602 over a 422. 

 

Thanks

Reese

 

From: Kim Pedersen [mailto:[email protected]]
Sent: Friday, March 20, 2009 6:29 AM
To: Enterasys Customer Mailing List
Subject: Re: [enterasys] AP 1602

 


Hi Jimmy,

I think I can throw in a couple of cents worth here:

The 1602 (And 4102s too AFAIK/Remember) need the antenna to provide DC Short or else the external antenna port won't activate and remains "stuck" using the internal antenna regardless of which antenna you set the AP to use in the software settings.

The Enterasys/Trapeze branded antennas all provide the DC Short, so they work. Most other 3rd party antennas don't.

Many amplifiers will provide the DC Short, so if you insert on of those between the omni and the AP, it will work correctly.

This bit us in the behind when we were installing a distributed antenna system using 70 1602s for the WiFi signal.

As a cheaper and simpler alternative to using amplifiiers, we found a lightning arrestor at L-Com that provides the DC short.
(http://www.l-com.com/productfamily.aspx?id=6194)

Our installation had 70 access points, and we ended up getting a 140 of these arrestors.

Yes, they are only rated for operation between 2.3-2.7GHz, but they do the trick for the 5GHz antenna port as well (With an increase in VSWR)



Hope it helps, and saves you some of the many hours we spent on the problem.


P.S. We opened a product improvement case with Enterasys, but after a year they determined this couldn't be done. I think it must be a limitation in the Trapeze design of the hardware, as well as HiPath is the future now


Kind regards,

Kim Pedersen
CNCS Ltd.
Fitzville
Haggatt Hall
Barbados
+1 246 429 8682



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