Procurve 2910al-24 fiber Stacking

[Tchotchof]

Hi All,

I'm currently setting up a distribution network for my company. I have two 2910 which will be installed on 2 different floors.

I've add two X121 Gbic for the connection between the 2 switches.

In the lab : 2 switch connected with a LC-LC fiber (62um) - Forced the Gbic port from Auto to 1000FDx and they come up.

Everything is tested and OK.

My issue : 

When the switches are installed in the rack on different floors, connected to the building fiber network with fiber cords => Gbic ports are not coming up...

I've changed the fiber cords, cross the plugs... Nothing happens

My Questions : 

- Is X121 Gbi the rigth choice and may be an issue ?

- I'm using OM1 fiber cord (62,5um) but not sure about the fiber type of the building . Could be a cause ?

- Do you see any other point I can check/change ?

Thanks in advance for your help.

Christophe

[Arimo]

Hi

Since it works in the lab, I'd say get someone onsite to check the building fiber type and measure if it's actually working.

[Tchotchof]

Hi,

Thanks for the reply.

That's what I've done today and it seems that the fiber in the building is a OS1 9/125um single mode.(What I can find from the reference printed on it); and my GBIC are SFP LC SX HP X121(J4858C) which are only multimode.

I think (and correct me if I'm wrong) that if I change the Gbic to the J4859C model it should work.

Thanks 

Christophe