Appendix C
Expanded Fiber Tray
illustration.
Multi-Wave O-Band Demultiplexer Configuration Example
As the demand for bandwidth continues to grow and clusters of homes decrease into
smaller serving areas, networks can become capacity constrained or ''fiber starved.''
A cost-effective approach to solving this problem uses multiple wavelengths on a
single fiber.
The Prisma II™ Multi-Wavelength (O-Band) system solution enables dramatic
bandwidth increase over a single optical fiber. This system uses forward transmitters
capable of co-propagating multiple wavelengths in the 1320 nm to 1335 nm window
down a single fiber using wavelength division multiplexing (WDM), with each
transmitter carrying a full RF load.
The multi-wavelength solution is ideal for segmentation of node service areas
because they enable the reuse of existing fiber up to six times, over distances of up to
30 kilometers.
GS7000 NodeHeadend
Rtrn RX
Fwd TX
Rtrn TX
Fwd RX
WDMs WDMs
Rtrn RX
Fwd TX
Rtrn TX
Fwd RX
Rtrn RX
Fwd TX
Rtrn TX
Fwd RX
Rtrn RX
Fwd TX
Rtrn TX
Fwd RX
Service Group 4
Service Group 3
Service Group 4
Service Group 1
Service Group 2
Service Group 3
Service Group 2
Service Group 1
Service Group 4
Service Group 3
Service Group 4
Service Group 1
Service Group 2
Service Group 3
Service Group 2
Service Group 1