These are EDFA1's and they have 3 modes: constant-pump current mode, constant-pump power mode and constant-output power mode. What I'm looking for is what mode to be running and how to config them to only get 10db gain out instead of the default 23db gain
Are these existing EDFA-1's? The EDFA-1 only offers constant gain of 23dB, and this will require attenuators to adjust the input/output levels accordingly to get 10dB gain.
The different modes you mention offer varying levels of control, but typically constant gain mode is used within a DWDM network as it allows you to ensure stability across all your wavelengths to keep them within tolerance under most conditions (eg add/drop of wavelengths).
For example, in constant output power mode, if you suddenly lost half your wavelengths, the remaining wavelengths would be given extra gain to try to maintain the higher output power. The resulting power levels could overdrive the receivers and the service would fail - and vice versa.
What does the rest of the network consist of? ONS15216/ONS15454?
If possible, you might want to consider the ONS15216 EDFA-2 which includes a built-in VOA on the EDFA ingress to control input (and hence output) power. You may need to consider the impact on OSNR depending on where the attenuation is used within your network.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.