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Why Crestron can use USB to RS232 adapter for programmatically control SX20

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Why Crestron can use USB to RS232 adapter for programmatically control SX20 but have com port notebook cannot(use Putty and hypertrm)?

I try speed 9600,38400,115200,but Putty and hypertrm is no report and cannot enter the function key .

Can i use USB to RS232 adapter connect SX20 like MXP? have any questions is the need to pay attention to it?

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Rising star

This community does not provide technical support and is not staffed with technical support experts.  I recommend you post this and future technical support questions to the Cisco Support Community (https://supportforums.cisco.com/index.jspa) where our Cisco technical support experts provide assistance. Another option is to open a ticket with the Cisco Technical Assistance Center (www.cisco.com/go/support) to get expert debugging assistance.


We do encourage you to participate in the Cisco Collaboration Community and to also join our Cisco Collaboration User Group program!  In the community, we encourage your discussion/sharing around collaboration topics and Cisco Collaboration Solutions, including business and IT requirements, industry trends, process, culture/organization issues, how collaboration can be used to transform businesses, vendor selection, adoption, training, architecture, licensing, and product features/functionality. If you are a customer or partner, you can also join the user group program to be eligible for member-only events and influence product direction.


We hope to hear from you again.

Kelli Glass, Moderator for the Cisco Collaboration Community

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