[App_rpt-users] USB protection

CHARLES BENN cbenn7 at verizon.net
Wed Nov 9 03:57:55 UTC 2011


Agree- I saw that the rated speed seemed slow
Charlie


________________________________
From: Bote Man <bote_radio at botecomm.com>
To: App_rpt-users at ohnosec.org
Sent: Tuesday, November 8, 2011 9:10 PM
Subject: Re: [App_rpt-users] USB protection

Maybe you ought to order just 1 for testing. I read in the URI write-up
that just because it says USB 2.0 doesn't mean that it can keep up the
data rate required:

"USB hubs are not recommended.  However, if a hub must be used, make
sure it is rated at USB 
2.0 High Speed.  Some hubs are USB 2.0 compliant but are rated only at
Full Speed (12Mbps) 
not High Speed (480Mbps).  Do not connect any USB 1.x devices to either
the same external hub 
or to the host computer’s internal root hub."

Note the docs from the protector web site:

Compatibility     USB 1.1 (1.5Mbps) / USB 2.0 (12Mbps).
Actual speed     USB 1.1 (1.5Mbps)

You might protect your USB device, but then it might not talk to your
computer with this device inserted in the line.

Bote


> -----Original Message-----
> From: Lu Vencl
> Sent: Tuesday, 08 November, 2011 11:37
> 
> Just got this from a fellow ham. Good for repeater sites.  I am
ordering 7.
>
https://www.usconverters.com/index.php?main_page=product_info&cPath=67&p
roducts_id=339
> 
> 


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