Many imagers use the Digital Loggers Web Switch Pro’s to control power to devices in their observatories. The ASCOM driver on the ASCOM web site allows an astronomy app to control one switch. However, many observatories have multiple switches that need to be controlled.
Digital Loggers support page now has new ASCOM drivers available that allow up to three of those switches to be controlled by SGPro.
Check out:
https://www.digital-loggers.com/ascom.html
If your Web Switch Pro is older than 2019, it may need to have its firmware updated to work with this driver.
Charlie