1-We have connected Router 1 to port 1 on the RPS and Router 2 to port 2 on the RPS, and you can see the 2 LEDs related to the 2 ports connected to the 2 routers are in standby mode (solid green)

You can see the 2 routers are connected to the RPS, and the PS (Internal power supply) LEDs on both of them are solid green

Power off Router 1, RPS LED on the router is green, PS LED is amber, router delivers its power from the RPS.

Port 1 LED on the RPS is blinking green, and Port 2 LED is blinking amber, so the router 2 is not backed up from the RPS now.

Powering the Router 1 on again.

Power off Router 2

Powering 2 router on again

Power off the 2 routers, Router 1 is backed up by RPS, and Router 2 is powered off.