(V3) User Manual

User’s Manual of IGSW-24040T
4.4.4 SFP Module Information
The IGS-20040MT supports the SFP module with digital diagnostics monitoring (DDM) function. This feature is also known
as digital optical monitoring (DOM). You can check the physical or operational status of an SFP module via the SFP Module
Information page. This page shows the operational status, such as the transceiver type, speed, wavelength, optical output
power, optical input power, temperature, laser bias current and transceiver supply voltage in real time. You can also use the
hyperlink of port no. to check the statistics on a specific interface. The SFP Module Information screen in Figure 4-4-4 appears.
Figure 4-4-4: SFP Module Information for Switch page Screenshot
The page includes the following fields:
Object Description
 Type
Display the type of current SFP module; the possible types are:
 1000BASE-SX
 1000BASE-LX
 100BASE-FX
 Speed
Display the speed of current SFP module; the speed value or description is
obtained from the SFP module. Different vendors SFP modules might show
different speed information.
 Wave Length(nm)
Display the wavelength of current SFP module; the wavelength value is obtained
from the SFP module. Use this column to check if the wavelength values of two
nodes match while the fiber connection fails.
 Distance(m)
Display the support distance of current SFP module; the distance value is
obtained from the SFP module.
 Temperature(C)
– SFP DDM Module Only
Display the temperature of current SFP DDM module; the temperature value is
gotten from the SFP DDM module.
 Voltage(V)
– SFP DDM Module Only
Display the voltage of current SFP DDM module; the voltage value is gotten from
the SFP DDM module.
 Current(mA)
– SFP DDM Module Only
Display the ampere of current SFP DDM module; the ampere value is gotten
from the SFP DDM module.
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