[vcf-midatlantic] Modem banks
Richard Cini
rich.cini at gmail.com
Tue Sep 1 21:28:52 EDT 2020
If you look on eBay now, there’s a modern-ish MultiTech modem rack that literally has 7 desktop modems in it. On the rear of the crate, the DB25 sticks out and they have a power harness with 5.5mm coaxial power plugs.
The one I had years ago was the more conventional plugin card type. Killing myself for not keeping it.
http://www.classiccmp.org/cini
Long Island S100 User’s Group
Get Outlook<https://aka.ms/qtex0l> for iOS
________________________________
From: vcf-midatlantic <vcf-midatlantic-bounces at lists.vcfed.org> on behalf of Dave McGuire via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org>
Sent: Tuesday, September 1, 2020 8:14:18 PM
To: Kimberley Hart via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org>
Cc: Dave McGuire <mcguire at neurotica.com>
Subject: Re: [vcf-midatlantic] Modem banks
On 9/1/20 4:39 PM, Kimberley Hart via vcf-midatlantic wrote:
> Port master 2/e with 30 sportster modems hanging off it. That is how Erol’s
> internet started. They used the spinner racks from their video store to
> hold them all. I knew someone that worked there a little later, but the
> story was passed down.
We did exactly that at Digex, we pushed those PM-2Es hard. In the
beginning we held the modems on rack-mounted shelves, but we had a lot
of problems with overheating, We initially spaced them out with Legos
(yes, Legos!), but we quickly replaced them with custom-made metal trays
with spacer pins as soon as we could afford to do so.
(When courting $100K+/mo contracts with datacenter tours, one must
establish credibility and build trust...and one doesn't do that with Legos.)
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
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