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Re: Using USB for multiple serial ports?
- To: ukha_d@xxxxxxx
- Subject: Re: Using USB for multiple serial ports?
- From: "James Traynor" <james@xxxxxxx>
- Date: Wed, 22 Nov 2000 19:36:26 -0000
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
I have had many problems with usb ports. Windows historicly doesn't
like serial on shared interupts, all usb serials share the same irq.
The mscomm32 activex component used in many programs to access the
serial port will crash with 2 serial usb's running. However try
installing modems on USB serial ports and I have never had any
problems. I guess TAPI is imune to the interupt problem. I run 5
serials on my machine normal on irq 2,3,5,7(printer disabled) and one
on usb and have not had any problems.
James
--- In ukha_d@xxxxxxx, "Mark McCall" <mark@a...> wrote:
> I'm about to rebuild my HA server on a new motherboard that has 2
USB ports and I'm hopeful that this will solve my serial port
problems.
>
> Does anyone have experience of USB to multiple serial devices and
do these work OK with HomeVision, Comfort, Caller ID boxes etc etc.
>
> Thanks
>
> Mark
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