Cisco GLC-BX-D Compatible 1000BASE-BX-D BiDi SFP 1490nm-TX/1310nm-RX 10km DOM Transceiver Module

Hello Friend, The BIDI transcievers you mentioned is with DDM info, you can get the light from the DDM info. DDM is Digital-diagnostic-monitoring which provides a user with critical information concerning the status of the transmitted and received signals. This approach allows for better fault isolation and error detection. Digital diagnostics monitor the SFP module’s temperature, receiver power, transmitter bias current, and transmitter power. Usually, the output of the physical value of each parameter is an analog voltage or current from the Trans impedance amplifier, the laser driver, or the post amplifier. Engineers use ADCs to digitize those physical values. With the digitized value, a microcontroller can then either process data as part of a control loop, trigger an alarm, or just record the data into a register. By FS.COM on July 22, 2017