68kMLA Classic Interface

This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.

Click here to select a new forum.
Connecting Macintosh serial to USB on PC with Munt
Posted by: grieverheart on 2023-11-07 01:39:11
I would like to connect my Quadra 840AV to a PC that has Munt running, emulating the Roland MT32. I was wondering if I can put together a cable that connects the Mac's serial port to USB. Would I need some kind of TTL adapter like this one? Has anyone tried doing this?
Posted by: Phipli on 2023-11-07 02:22:01
I would like to connect my Quadra 840AV to a PC that has Munt running, emulating the Roland MT32. I was wondering if I can put together a cable that connects the Mac's serial port to USB. Would I need some kind of TTL adapter like this one? Has anyone tried doing this?
No, not TTL, you'd want RS422 to RS232, then RS232 to USB.
Posted by: Phipli on 2023-11-07 02:31:05
Alternatively, get one of these :

www.ebay.co.uk

KEYSPAN USA-28X B Dual Port RS422-USB Converter | eBay

<p>KEYSPAN USA-28X B Dual Port RS422-USB Converter. </p><br /><p>Excellent condition - barely used </p>
www.ebay.co.uk

I don't understand why there are hardly any on eBay and they're that price. They're only really useful for this, and can be replaced with a cable. A year or so ago there were loads on eBay and at prices down to £5.

Hopefully you can still find one somewhere.

Anyone got any idea why they've all vanished off eBay? @joshc?
Posted by: Skate323k137 on 2023-11-07 02:51:24
Serial midi interfaces are a dime a dozen, maybe a cheap macman for the Mac and USB midi interface for the computer? For MT32 the UM-ONE MKII is rock solid.
Posted by: joshc on 2023-11-07 03:09:23
Anyone got any idea why they've all vanished off eBay? @joshc?
No idea. Probably goes in waves. It certainly wasn't me. 😀 I only have one, and it was gifted to me.

A similar thing happened with AAUI adapters, there were loads and then there weren't many on eBay anymore.
1