Cisco Prisma II 1550 nm Optical Amplifiers Datenbogen
Prisma II Ancillary Modules
2
Head End Driver Amplifiers
Description
The Prisma II
™
platform is capable of utilizing a combination of modules which
address a variety of applications. The platform also supports important reliability-
enhancing features such as redundant power supplies, network switching, and
element management (with ICIM). The Prisma II Forward and Reverse Headend
Driver Amplifiers (FHEDA and RHEDA) are designed to add to this flexibility.
The FHEDA/RHEDA provide amplification and are typically an integral part of the
RF network in the headend or hub. The FHEDA/RHEDA feature a firmware
controllable, variable attenuator and equalizer to provide optimum signal levels.
The FHEDA/RHEDA are powered externally by the Prisma II power supply, which
reduces heat and extends the life of the amplification circuit.
enhancing features such as redundant power supplies, network switching, and
element management (with ICIM). The Prisma II Forward and Reverse Headend
Driver Amplifiers (FHEDA and RHEDA) are designed to add to this flexibility.
The FHEDA/RHEDA provide amplification and are typically an integral part of the
RF network in the headend or hub. The FHEDA/RHEDA feature a firmware
controllable, variable attenuator and equalizer to provide optimum signal levels.
The FHEDA/RHEDA are powered externally by the Prisma II power supply, which
reduces heat and extends the life of the amplification circuit.
Features
• Designed to operate in the Prisma II platform
• Compact size saves headend space
• 46 to 1002 MHz pass band (FHEDA)
• 5 to 200 MHz pass band (RHEDA)
• Internal current-sensing circuitry monitors the operation of the amplification circuit
• Full ROSA / TNCS control & monitoring capable
• Variable Gain (14 to 24 dB) and Variable EQ (0 to 9 dB)
Forward and Reverse Headend Driver Amps
Forward and Reverse Headend Driver Amps
Variable
Attenuator
RF Input
Test Point
Microprocessor
RF Output
RF Input
ICIM
Front Panel
(optional module)
LCI User
Interface Connector
(on chassis)
Variable
Equalizer
Composite RF
Output
Dectector
Amplifier