Руководство По Установке для Cisco Cisco Prisma II EDR Receiver
78-715189-01 Rev C
Introduction
1-1
Chapter 1
Introduction
Overview
Introduction
This chapter presents a general introduction to both the Prisma
®
II Forward
Headend Driver Amplifiers and Prisma II Reverse Headend Driver Amplifiers
(HEDA). Descriptions of the front and rear panels are included with block diagrams.
The Prisma II Forward Headend Driver Amplifier and the Prisma II Reverse
The Prisma II Forward Headend Driver Amplifier and the Prisma II Reverse
Headend Driver Amplifier are separate modules with different part numbers.
However, with the exception of their application and a few important signal
adjustments, they are installed and function in almost exactly the same manner.
Therefore, except in the few places where their operation differs, the two HEDA
modules are referred to as one module for the purposes of this guide.
Qualified Personnel
Only appropriately qualified and trained personnel should attempt to install this
product.
WARNING:
Allow only qualified personnel to install, operate, maintain, and service this
product. Otherwise, personal injury or equipment damage may occur.
In This Chapter
This chapter contains the following topics.
Topic
See Page
HEDA Description
1-2
The HEDA Front Panel
1-5
The HEDA Rear Panel
1-7