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4200G + SFP

 
John_Matrix
Occasional Visitor

4200G + SFP

Hello all!



I just installed a 4200G 12 ports + SFP module.



But the fiber link is still down.



 



I've "activated" the port who it has the SFP module in the web interface.



Must I do something else?



 



Thank you a lot!



 



 



PS : an SFP module can work at 100Mbps? Because our fiber part is 100Mbps.



4 REPLIES
Fred_Mancen_1
Super Advisor

Re: 4200G + SFP

Are you using the SFP 100BASE-FX/SX? The 4200G does support SFP transceivers at 100Mbps, at the two last slots.



FAST ETHERNET SFP TRANSCEIVERS:


3Com 100BASE-FX SFP (Dual-Mode) 3CSFP9-81


3Com 100BASE-LX SFP (Dual-Mode) 3CSFP9-82



John_Matrix
Occasional Visitor

Re: 4200G + SFP

Hello Fred!



No I have a 1000BASE-SX SFP.



When I use a SFP, I must connect it on one of the last port ?



 



Thank you!



Fred_Mancen_1
Super Advisor

Re: 4200G + SFP

You are using the 3CSFP91 transceiver. This SFP works only at 1Gbps and in any slot. In order to work at 100Mbps you have to purchase a different SFP Transceiver (one of that two I mentioned above), and this one works only at the two last slots.



Regards



John_Matrix
Occasional Visitor

Re: 4200G + SFP

Hello Fred,



Thank you for your answer, I will buy a new SFP module.



 



Regards.