Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Fiber module for cata switches

Hi,

I have mm fiber connect two buildings using GBIC (part #30.0759.01)on Cata 4500 one site with GLC-LH-SM 30-1299-01 on 3650-8 port POE switch at another site. I can not see link on switches. I am not sure if these two GBICs can work together. I appreciate it very much for your help.

Thanks!

Steve

3 REPLIES
Silver

Re: Fiber module for cata switches

If your GBIC (part #30.0759.01)is Multimode and you are connecting it to GLC-LH-SM 30-1299-01 which is Singlemode.Link will not be up asthe sizeof a Multimode is 50/62.5micron whereas size of Singlemode is 8-10micron.

So your multimode GBICcannot send enough power in Single mode fiber.

If distance between your building need single mode fiber then you have to change your GBIC which it multimode(GBIC: WS-G5484)can go upto 550m this to like (GBIC: WS-G5486)which can go 10km on Sinle mode.

Sobottomline either both haveto be MM(multimode) or both have to be SM(single mode)

New Member

Re: Fiber module for cata switches

Thanks!

I will change the module and see what happen.

thanks again.

Steve

Re: Fiber module for cata switches

What is the length of the multimode fiber between the buildings or what is the total fiber loss?

429
Views
0
Helpful
3
Replies