4s4p什麼意思pstn

"4s4p" is not a term that is widely recognized in the context of PSTN (Public Switched Telephone Network) or telecommunications in general. It's possible that it could be a shorthand or an acronym used in a specific context or by a particular organization, but without further information, it's difficult to provide a precise definition.

If you're referring to "4s4p" in the context of battery specifications, it could mean "4 series, 4 parallel" which is a configuration for connecting batteries. In this configuration, four batteries are connected in series (4s) and then four sets of these series-connected batteries are connected in parallel (4p). This results in a battery pack that has a higher voltage due to the series connection and a higher capacity due to the parallel connection.

However, if you're asking about this term in the context of PSTN or telecommunications, it's likely that you're referring to a different term or there's a misunderstanding in the acronym or phrase. Could you please provide more context or clarify your question so I can give you a more accurate answer?