Cisco Prisma II Installation And Operation Manual page 14

Overview of the bdr Transmit Processor,
Transmitter Block Diagram
A block diagram of the Prisma II bdr 2:1 Redundant Transmit Processor with two
Prisma II bdr Transmitter sub-modules is shown below.
RF Input A
A/D Input T.P.
-20 dB
RF Input B
A/D Input T.P.
-20 dB
1-4
0 to 10 dB
Variable A/D
Attenuator
0 to 10 dB
Variable
A/D
Attenuator
Data Input
Laser
Driver
Transmitter
Sub-module
DFB
Laser
Optical Output
Introduction
Continued
Transmit
Secondary
Processor
TDM
Mux
Primary
Transmitter
Sub-module
Data
Outputs
2.5 Gbps
Data Input
Laser
Driver
DFB
Laser
Optical Output
78-715192-01 Rev C