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Moxa Managed Ethernet Switch (UI_2.0_FW_5.x) User Manual
114
Fiber Digital Diagnostics Monitoring (SFP DDM and Fiber
Check)
Optical fiber is commonly used for long distance data transmission. However, when link issues occur, it is
very costly to troubleshoot fiber cables and fiber transceivers at remote sites. To solve this problem, Moxa
industrial Ethernet switches provide digital diagnostics and monitoring (DDM) functions on Moxa SFP’s
and/or fixed type (multi-mode SC/ST and single-mode SC connectors) optical fiber links and allow users to
measure optical parameters and its performance from a central site. This function can greatly facilitate the
troubleshooting process for optical fiber links and reduce costs for onsite debugging. Two different
categories of Moxa switches support Fiber Digital Diagnostics Monitoring functions: SFP DDM and Fiber
Check.
Type
Models Supported
SFP DDM
IKS-6726A, IKS-6728A, IKS-6728A-8PoE, IKS-G6524A, IKS-G6824A, ICS-G7526A, ICS-
G7826A, ICS-G7528A, ICS-G7828A, ICS-G7748A, ICS-G7848A, ICS-G7750A, ICS-
G7850A, ICS-G7752A, ICS-G7852A Series
Fiber Check
EDS-510E, EDS-518E, EDS-528E, EDS-G508E, EDS-G512E, EDS-G516E
SFP Digital Diagnostic Monitor
Parameter
Description
Port
Switch port number that the SFP is plugged into
Model Name
Moxa SFP model name
Temperature (°C)
SFP casing temperature
Voltage (V)
Voltage supplied to the SFP
Tx power (dBm)
The amount of light being transmitted into the fiber optic cable
Rx power (dBm)
The amount of light being received from the fiber optic cable
NOTE
Certain tolerances exist between real data and measured data.
Parameters
Tolerance
Temperature (°C)
±3°C
Voltage (V)
±0.1 V
Tx power (dBm)
±3 dB
Rx power (dBm)
±3 dB