APC UPS Serial connection

It looks like the intention is to go from a serial port on a UPS to a USB port on a router. For routers that only have a console port, is it possible to make a cable to go from the UPS Rj45(RJ50) serial port to the Mikrotik RJ45 console port and have that work?

We’re looking to replace/install a bunch of UPS’s and the BR1500MS2 is $275 while the SMC1500C is $503. As far as I can tell, the only real difference is the management port (that you have to buy a subscription to use after 6 months now). I’m just looking to get alerts when we lose commercial power.