[c-nsp] 15km optics

[Paul Stewart]

Hi Ray..

Use the ZX SFP and check the levels - if needed, put attenuators inline to
drop the signal back down.... we have some runs with ZX in place at 12-15km
and no attenuation with no issues - they have been in place for several
years now...

I don't have the specs but the receiver sensitivity I believe is the key
(what highs and lows it can tolerate).... someone may have a more technical
explanation for you ;)

Take care,

Paul


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Ray Burkholder
Sent: Friday, March 13, 2009 11:48 AM
To: 'cisco-nsp'
Subject: [c-nsp] 15km optics

I have a carrier which has about 13km to 15km of fibre to their CO.  They
run 1310 nm alcatel equipment on their end.  I was wanting to use a Cisco
GLC-LH-SM on my end but that is rated for 10km.  The GLC-ZX-SM is 1550 nm
70km device which is incompatible.  

Does anyone have suggestions on how to complete this link?  inexpensive
optical regenerator?  small intermediate alcaltel box?   a cisco SFP running
1310 nm and has longer range?

Ray


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