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Look at the CP 4 and you’ll see many options of which includes RS-232. Win 10 can easily run RS232 ports and the hardware is available. I use StarTech PCIe boards on new builds. As for laptops, I don’t even try to run an observatory on one especially if imaging. I use the Ethernet connection as primary with a RS232 backup.
From: firstname.lastname@example.org <email@example.com> On Behalf Of Peter Natscher
Sent: Thursday, July 16, 2020 1:43 PM
Subject: [ap-ug] RS-232
Why does Astro-Physics continue to use RS-232 in their CP mount electronics? This adds to the difficulty of upgrading the electronics with current computers, especially operating in Win 10. What other telescope mount maker uses RS-232? These plugs are not on current laptops, they are so old system developed in 1968! Today's electronics only need USB.