The tutorial has been tested on a Riello UPS with a Netman 102 card.
Once connected to the console (parameter: 9600 baud 8N1), this menu appears:
Scroll down to the “Services 1” line and press “enter”. In the next menu, go to “SNMP community” + enter.
Edit your community, here I've set it to “public”.
Press “Ech” and then confirm