Key points in this article
Why confirmation first
A status light is a language users learn. Changing it without confirmation forces everyone to relearn and invites error. Before altering anything, confirm the site, the power state, and who owns the meaning of each blinking state shown.
What to confirm
Map each state to one clear meaning and test it with real users. Confirm the change will not clash with an existing blink. The front line shows most trouble came from assuming people already know what a new signal means instantly.
Keep meaning clear
Check equipment status before use. Confirm billing stopped and verify the amount. Stop and report if a cable is damaged or connector loose. Save records so any confusion about the light can be traced and fixed quickly by staff. A small, steady effort on confirm before changing the light and keep the meaning unambiguous protects both users and the equipment over the long run. When confirm before changing the light and keep the meaning unambiguous are treated as normal practice, far fewer surprises reach the service team later.