Librenms, which table to use the optic signal dbm information in mysql db

[Batmagnai_Erdene]

Dears,
I am using a librenms database(mysql) to connect to Grafana. Librenms which table to use the optic signal (dbm) in mysql db. I cannot find that table.

BRs’
Batmagnai.E

[rhinoau]

There are in sensors table, based on device_id and the sensor_class is dbm

example:

select * from sensors where sensor_class = 'dbm' and device_id = (select device_id from devices where hostname = 'xxxxxxx');