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This topic comprises 2 pages: 1 2
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Author
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Topic: USB to Serial adaptors
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Steve Guttag
We forgot the crackers Gromit!!!
Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
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posted 05-19-2014 10:44 AM
For the older laptops that had a PCMCIA slot, I used SocketCom's serial adapter. That was the best...it was every bit as good as a hard serial port.
For my current Win 7 machine(Thinkpad W520), I'm using Brain Box's serial adapter, which is also a hardware solution and also works on most everything but a JSD80. So, far, even using the Keyspan USB adapter hasn't been able to connect to a JSD80 serial only processor. Win 7 on a JSD80 Ethernet processor hasn't been an issue though.
One of these days, I'll figure out the right combination of device/drivers to get the JSD80 to work well enough. We don't have many to contend with and most were updated for DCinema to Ethernet. Another possibility, I guess is to get an Ethernet to RS232 adapter, like Lantronix and just turn the JSD80 into an Ethernet device.
On the CP650, everything I've tried has worked...including the Keyspan adapter on Win 7 or Win XP.
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Marcel Birgelen
Film God
Posts: 3357
From: Maastricht, Limburg, Netherlands
Registered: Feb 2012
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posted 05-27-2014 03:30 AM
quote: Carsten Kurz
Actually, both is possible, depending on the implementation. e.g. under OS X, you could have a native supported USB-Serial adaptor which establishes serial ports for OS X. These ports could be forwarded to a VM running windows as COM-Ports. But you could as well forward the Mac USB-Ports to the VM and install windows drivers for the USB serial. One or the other variant could work or not, depending on VM software, driver robustness, USB adressing scheme, etc.
VMWare also supports "hardware bypasses", I've used it a few times for stuff like USB dongles containing license keys. It is, however, very flaky and I've never seen it working with an USB/Serial convertor. The primary problem is that USB doesn't have a fixed addressing scheme, you have to identify USB devices by other means, like their hardware IDs.
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