I have found three sources for a multiple serial port USB device:
1. Comtrol Rocketport. 4 ports but supports on 7 or 8 bit data so won't
handle FSK keying. It is on back-order at most places.
2. www.connecttech.com Their White Heat product does 4 ports, supports 5,6,
7, 8 bits. They have not replied to email after 24hours. Not sure where to
buy.
3. www.svbus.com Silicon Valley Bus. 4 ports. Not clear about less than 7
data bits. They also have not replied to email after 24 hours. Order
direct.
I gave up for now and ordered another Rocketport PCI for my new machine.
I'll worry about getting the USB version later.
73,
Mike WA0SXV
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