[time-nuts] Needed: The Real Serial USB Fix

[Bob Camp]

Hi

We've had better luck with the FTDI based parts than with the other USB serial gizmos. Even they do drop out every so often. With the modern drivers it's a lot more rare than it once was. With 32 ports on a system and several systems it's a once or twice a year sort of thing now. 

Bob

On Jan 27, 2013, at 2:28 PM, Peter Gottlieb <nerd at verizon.net> wrote:

> It came down to startup issues.  If every fifth time the system was turned on it wouldn't initialize properly and not see an airflow or whatever sensor, it required the calling of a tech from the test group to come over and get it going.  We run Labview but it was always a Windows problem as the devices wouldn't show up in Device Manager.
> 
> Peter
> 
> 
> 
> On 1/27/2013 1:48 PM, Jim Lux wrote:
>> On 1/27/13 9:30 AM, Peter Gottlieb wrote:
>>> At work we simply use multi port serial cards (*no* USB intermediary) or
>>> Ethernet to serial adapters.  Any use of USB for critical test equipment
>>> was pretty much banned here years ago.
>>> 
>>> 
>> Why the proscription against USB?
>> Because of difficulty with USB device drivers? Or the plethora of serial port emulators that have unforeseen interactions with software that thinks it's talking to a real serial port? or what?
>> 
>> 
>> 
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