Cisco Prisma II bdr Dig Rev 2 1 Dual Mux Sys for High Density Installations Guía De Instalación
Reverse Balancing the Node with the Enhanced Digital Reverse Modules 78-741939-01 Rev C
3-8
Reverse Balancing Procedure,
Continued
Reverse Balancing and Alignment Procedure
Follow these steps to reverse balance and align the node with the digital reverse
modules.
1.
Open the housing. Refer to Opening the Housing in Section A of
Chapter 2.
2.
Refer to the reverse system design print and inject the proper level into
the forward output test point of a port of the RF launch amplifier with a
reverse sweep transmitter or a CW signal generator. The insertion loss of
all forward output test points is 20 dB (relative to corresponding port).
Note: This illustration and others shows the double-wide laser module
Note: This illustration and others shows the double-wide laser module
only. The single-wide module is similar except for size. The instructions
are the same for both.