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Transition Networks 

 

 

 

      

 

 

 

TN-SFP-xx25G-xR-S Series User 

Guide 

33815 Rev. A 

                                   

https://www.transition.com 

Page 1 of 9

 

User Guide 

TN-SFP-xx25G-xR-S Series  

Cisco Compatible 10G/25GBase SFP28 Modules 
10G/25GBase-X, SFP28 With DMI (LC) 

Transceiver Modules 

 

SFP28 Optical Transceiver with LC connector 

 

MSA Compliant 

 

Compliant with 10GBase-xR 

 

Compliant with 25GBase-xR 

 

Compliant with 5G eCPRI 

 

3.3V Power Supply 

 

Power dissipation < 1.2 Watts 

 

Compliant with SFF-8431 and SFF-8472 

 

RoHS Compliant 

Contents 

Introduction ................................................................................................................................................................1 
Description .................................................................................................................................................................2 
Ordering Information (Duplex) ...................................................................................................................................2 
Specifications and Standards ......................................................................................................................................2 
Optical Specifications .................................................................................................................................................3 
Applications ................................................................................................................................................................3 
SFP Unpacking ............................................................................................................................................................3 
SFP Installation ...........................................................................................................................................................3 

Cautions .................................................................................................................................................................3 
Installing an SFP Module ........................................................................................................................................3 
Fiber Cable Physical Characteristics .......................................................................................................................4 
Connecting Fiber Cables .........................................................................................................................................4 
Removing an SFP Module ......................................................................................................................................4 

Diagnostic Monitoring Interface (DMI) ......................................................................................................................6 
DDMI (Digital Diagnostics Monitoring Interface) .......................................................................................................7 
Contact Us ..................................................................................................................................................................8 
For More Information .................................................................................................................................................8 
Compliance Information .............................................................................................................................................8 
Record of Revisions ....................................................................................................................................................9 

 

Introduction 

The Transition Networks TN-SFP-xx25G-xR-S Series 25G SFP28 transceiver modules are designed to install in any 
SFP28 port allowing for 25G/10GBase-X interfaces to the network via the SFP28 connector. The TN-SFP-xx25G-
xR-S transceivers are Cisco Compliant and are designed for bi-directional serial-optical data communication such 
as 25G Ethernet at speeds up to 26.5 Gbps.  
 

Summary of Contents for TN-SFP Series

Page 1: ...andards 2 Optical Specifications 3 Applications 3 SFP Unpacking 3 SFP Installation 3 Cautions 3 Installing an SFP Module 3 Fiber Cable Physical Characteristics 4 Connecting Fiber Cables 4 Removing an...

Page 2: ...se RRHs must be connected to baseband units sitting at centralized locations The connection between the RRUs and the base station is often called fronthaul While 4G LTE uses CPRI Common Public Radio I...

Page 3: ...s into the fiber bore of the SFP transceiver module as this will cause the optics to not operate properly Clean the optic surfaces of the optical fiber before you plug them back in to the optical bore...

Page 4: ...future use 10 Attach an appropriate cable into the SFP module port 11 Attach the other end of the cable into the other device 12 Observe the status LED s See the related manual for details Fiber Cable...

Page 5: ...eases the SFP transceiver module from the socket connector Grasp the actuator button between your thumb and index finger and carefully pull the SFP transceiver module straight out of the module slot b...

Page 6: ...t Measured transmit bias current in microamperes DMI Bias Alarm Alarm status for measured transmit bias current for the interface DMI Tx Power Measured transmit power in microwatts and in decibels rel...

Page 7: ...port If the DMI read value falls below the preset value an intrusion is detected and a trap is generated The default is 0 uW The range is 0 65 535 uW Port The device s port number Vendor The SFP vendo...

Page 8: ...g foa htm Compliance Information Class I Laser Compliance This product has been tested and found to comply with the limits for FDA Class I laser for IEC60825 EN60825 and 21CFR1040 specifications Trans...

Page 9: ...il of 27 January 2003 Transition Networks will accept post usage returns of this product for proper disposal The contact information for this activity can be found in the Contact Us portion of this do...

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