Cisco Prisma II bdr Dig Rev 2 1 Dual Mux Sys for High Density Installations Installation Guide
78-741939-01 Rev C Reverse Balancing the Node with the Enhanced Digital Reverse Modules
3-7
Reverse Balancing Procedure
Overview
Baseband digital reverse technology is designed to have a constant link gain,
regardless of the length of fiber or amount of passive optical loss in the link. That is,
if the RF signal amplitude of all ports in all nodes is set to a constant value, the signal
level at the output of the receiver will be balanced automatically to a constant power
level. Minor differences in levels can be trimmed out at the receiver with no penalty
to link performance.