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mac57

 
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Member Since: Apr 29, 2006
Location: St. Somewhere
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Mac Specs: iMac 27" 3.4 GHz, 256 GB SSD, 2 TB HDD, 8 GB RAM

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There are none on the machine, but you can get USB to RS-232 converters. Here are a few links:

http://www.usbgear.com/usa/item_288.html

http://www.keyspan.com/products/usb/USA28x/

http://www.ramelectronics.net/html/usb_serial.htm

Hopefully one of these will do the trick. If not, Google "USB RS-232" and keep following the pages of links until you find what you want.

My Macs: iMac 27" 3.4 GHz, Mac Pro 3.2 GHz, PowerMac G5 Quad 2.5 GHz, G4 Cube with 1.2 GHz Upgrade
My iStuff: 64GB iPhone 5, 64GB iPad4, 30GB iPod Video, 16GB iPod Touch
My OS': Mac OS X Lion, Mac OS X Snow Leopard, Mac OS X Tiger, Mac OS 9.2.2, openSUSE 10.3
I was on the Mac-Forums honor roll for September 2007
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