[Ham-Mac] Re USB Interfaces for Ham Radio

[Udo Wiemers]

Jan-Henrik Preine <Jan-Henrik.Preine@ik.fh-hannover.de> wrote:
---
>K6VKV@aol.com wrote:
>
>> I too have the problem of USB devices dropping off line.  In my case, I have
>> two USB zip drives that vanish from the desktop when mounted.  One is
>> connected via a Belkin USB hub, the other is via a SCSI interface adaptor
>> (also Belkin) plugged into the Belkin hub.
>> 
>> When this happens, the Belkin devices' lights go out.  Belkin has never
>> enlightened me as to the meaning of the lights.
>> 
>> My computer is a 400 MHz iMac DVD SE.  Also on my USB hub is a floppy drive
>> and an Epson scanner.  System is 9.0.4.
>> 
>> I would appreciate any enlightenment.
>> 
>> John Mason  K6VKV
>> Morro Bay California
>> _______________________________________________
>> http://mailman.qth.net/mailman/listinfo/ham-mac
>> 
>
>It happened to me quite often on several PowerMacs and iMacs. I had to
>unplug and plug the hub to get the devices recognized again. I used the
>Energy Saver Control Panel set to never go to sleep but dimm the screen and
>now it happens quite seldom.

This is not only a mac-problem. The same hapens on my notebook which is connected to my inhouse network with a usb -> 10baseT adaptor. When the comp falls into the energy save mode it drops the connection to the net. Unplugging and reconnecing the usb helps...

Bye...     dg3mgw  Udo