Re: Laptop with a serial port
I've used them in commercial use(receipt printers and cigarette machines0 and never had a swap out , not for alarms but once you get the ini file correct telling the software what pins to use I can't see there being an issue..most triggers will only be 4 pins at most.
I have also used them for connecting a serial lead through rj45 port to create terminal sessions to cisco routers and switches ..can't imagine an alarm having a more complicated interface than IOS on a router.