So, you can use the same Mac OSX driver they distribute which happens to support Lion. Prolific Technology’s PL2303 device is essentially the same product as the ATEN UC232A adapter. The question is can I actually get a driver that supports Lion in 64 bit mode for this adapter. I find a post that mentions that because this particular adapter was only supported with the original 32 bit drivers that Lion essentially disabled support because of the default 64 bit subsystem. So, I did some more searching, looking for people having problems getting this working with Mac OSX Lion. However, I did discover a number of posts referring to a company by the name of Prolific having a product that was 100% compatible if not identical to this particular ATEN device. I find out that ATEN has basically disappeared. So I do a quick Google search looking for any info on this product. So, now I know that it is made by ATEN International Co. Vendor ID: 0x0557 (ATEN International Co. I highlighted it in the USB Device Tree and found this: I drilled into the USB menu option and found the device listed as ‘Composite Device’. That was solved easily enough by plugging it into my Macbook and opening up the ‘About This Mac’ option on the Apple menu and clicking the More Info… button and then the System Report button. The first challenge was that I did not even know the manufacturer or part number of this particular USB Serial adapter. So, I thought I would add a post here covering the details. It took me a few weeks of trial and error and searching around to finally resolve the issue. So, I was determined to figure out how to get it to work, as I no longer have any physical machines running Windows or with serial ports. I had a VM running Windows XP and I was not able to get it to work properly in that environment either. However, I had tried using it on my Macbook running OSX Lion and noticed that it did not show up in my device list in ZTerm. I have never had an issue using it with Windows machines. This device also supports energy saving suspend and resume operations.I’ve had this USB Serial adapter for many years which I use to attach to network equipment consoles for initial configuration and setup. This eliminates the setup hassle found with traditional serial port connections. This makes the USB interface transparent to serial peripherals, allowing them to easily interface with USB computers. This USB PDA/Serial Adapter provides PDAs, digital cameras, modems, and ISDN terminal adapters with high quality serial connections at a data transfer rate of over 230Kbps. The PDA/USB Serial Adapter has a standard type A USB plug. The USB PDA/ Serial Adapter (UC232A) provides you with an external serial (DB- 9 male) Plug-n-Play connection for use with computers, notebooks, and hand held computing devices that support USB. Works with cellular phones, PDAs, digital cameras, modems or ISDN terminal adapter.Full compliance with the USB Specification.
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March 2023
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