QSFP optical module Read Digital Diagnostic Monitoring(DDM/DOM)

The hardware device in this demonstration is 40G-QSFP-SR

All QSFP packaged fiber modules can be used for reference

Prepare multi-mode optical fiber modules and multi-mode loopback modules

After the software opens, log in.

Perform the following steps:

1) Select QSFP Tab

2) Page size set to :8(This value is usually 8, but there are exceptions that vary depending on the IC. If reading fails, consult the module vendor)

    ReadIIC set to  :1(This value is filled in according to the usage, the smaller the value)

3)Check "DDM" in "Read/Write Options"

4) Click "Read" in "Read Options"(If a large number of optical modules are to be read, select Auto and click Read.)

5) Connect the optical fiber module and loopback module to the QSFP port

6) As shown in the figure, the power of the optical module is displayed.(Click "Stop" when finished)