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SFP Modules, Optical Cables for GLC-FE-100FX

Translator
Community Manager
Community Manager

Let me make sure Cisco's SFP module, GLC-FE-100FX.

While the GLC-FE-100FX specification states MMF, the wavelength is 1310nm.
My understanding is that1310nm is generally recognized as a single specification.
Do you see any problems if I use a common MMF 850/1300nm optical cable for connection?

Thank you very much.

3 Replies 3

Tom Randstrom
VIP Alumni
VIP Alumni

According to the data sheet (link below), and referring to Table 1, the GLC-FE-100FX module is 1300nm MMF. 

GLC-FE-100FX_Spec.jpg

https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/fast-ethernet-sfp-modules/datasheet-c78-486906.html

Good luck. 

Translator
Community Manager
Community Manager

The following material that tells us about GLC-FE-100FX is written as 1310nm instead of 1300nm.https://www.cisco.com/web/JP/product/hs/ifmodule/sfps/prodlit/pdf/sfpfesp_ds.pdf

As written in Japanese local language, sorry if this may cause any inconvenient for you, Tom, and other global users. I thought it might be probably a typo.

Having authored many technical documents myself, it is difficult to get the documents 100% correct. 

The IEEE 802.3 specification outlines it as a multimode interface.  The operating wavelength is specified as 1270 through 1380 nm, so technically, therefore, the wavelength could be 1300 or 1310, but multimode fiber.