Optical transceiver

Answered Question
Feb 5th, 2009
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Hi,


i have catalyst express 500 switch with transceivers modules GLC-SX-MM, 1000BASE-SX SFP.


Is possible to change the speed of this transceivers to 100Mbit?


... i need it know, because on other side of link is a opical/metallic converter ( AT-MC101XL

Fast Ethernet 100BASE-TX to 100BASE-FX (ST) Multi-Mode Fibre (2km), Stand-Alone Media Converter)


I think converter and tranciever are not compatible. Isn`t it?

Thank.

Correct Answer by Tom Randstrom about 8 years 4 months ago

Unfortunately, the GLC-SX-MM is not switchable to 100Mb operation. You need to purchase a 100Base-FX SFP module for your switch.


According to the following document, these are the 100Mb interfaces compatible with the Express 500:


GLC-GE-100FX

GLC-FE-100FX

GLC-FE-100LX

GLC-FE-100BX-D

GLC-FE-100BX-U


This document details the interop and specifications of these SFPs:


Cisco Small Form-Factor Pluggable (SFP) Transceiver Modules Maintenance and Troubleshooting

<http://www.cisco.com/en/US/products/hw/modules/ps4999/products_tech_note09186a00807a30d6.shtml#model>


Hope this helps!


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Correct Answer
Tom Randstrom Thu, 02/05/2009 - 07:09
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Unfortunately, the GLC-SX-MM is not switchable to 100Mb operation. You need to purchase a 100Base-FX SFP module for your switch.


According to the following document, these are the 100Mb interfaces compatible with the Express 500:


GLC-GE-100FX

GLC-FE-100FX

GLC-FE-100LX

GLC-FE-100BX-D

GLC-FE-100BX-U


This document details the interop and specifications of these SFPs:


Cisco Small Form-Factor Pluggable (SFP) Transceiver Modules Maintenance and Troubleshooting

<http://www.cisco.com/en/US/products/hw/modules/ps4999/products_tech_note09186a00807a30d6.shtml#model>


Hope this helps!


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