Optic light-level checker

Paste the transceiver readings from your switch (for example show interfaces transceiver). Each line should start with the port name and end with transmit and receive power in dBm. Nothing you paste leaves your browser.

Low receive below (dBm)High receive above (dBm)Low transmit below (dBm)Hot above (°C)

Limits are typical for 10G long-reach optics. Set them from your optic's datasheet.