Frequently Asked Questions

Questions about optical networking? Browse our FAQs to learn more.

What is the difference between the muxponder and transponder systems?
  1. The muxponder systems have an integrated filter for muxing the channels together. The muxponder solutions support point-to-point, linear, or ring topologies. The muxponder systems can be expanded by stacking systems to a maximum of 40 channels, and can mix and match 10G and 100G systems.
  2. The transponder systems do not have an integrated filter, but require an external DMD (DarkStar Mux/Demux) filter to aggregate the DWDM channels together. The transponder supports ring, linear, point-to-point, and mesh topologies. The transponder solutions can be expanded by stacking systems up to 96 channels, which means 9.6TB on the line-side and 11TB on the client-side. Again, you can have a mix of 10G and 100G systems for each of those 96 channels.
Do I need to open a maintenance window to add clients?
Do you have a GUI interface for programming and system management?
Do you have to be certified by XKL to install, provision, or operate XKL equipment?
What kind of power supply options are available?
What type of protection does XKL support?
What is the maximum distance supported without adding in-line amplifiers?
What is the cost for licensing, warranty and other recurring fees?
Does XKL code its lasers?
Do you support 100G client side services?
Do you support OTN G.709?

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