Arris CHP Max5000, Equipment Manual

Page: 15 / 267

1508685 Rev D Introduction 1-3
Figure 1.2
CHP Max System
Block Diagram
Chassis
The 2RU CHP Max5000 chassis mounts in a 19-inch or 23-inch rack. Each chassis holds up to
10 application modules, 2 power supply modules, and 1 management module.
Modules slide into the chassis’ open front; RF and optical connections are made to the
application modules installed in the chassis. Eight chassis-mounted fans cool the plug-in
modules.
Each chassis accepts either a Craft Management Module (CMM or CMM-1) or System
Management Module (SMM, SMM-1, or SMM-2) for local and remote element management.
A serial peripheral interface (SPI) bus on the backplane routes alarms and control signals
between the modules in the chassis and the management module.
For a detailed description of the chassis, see Chapter 2.
Power Supplies
AC or DC switched-mode power supply modules convert input power to DC voltages that are
fed into the chassis’ power bus, which routes voltages to the application modules.
One CHP Max power supply module provides enough power for one fully-loaded chassis.
Install a second power supply for load sharing and redundancy. These power supplies are
fully isolated and share power load; should one power supply fail, the redundant power
supply supplies all power needed. Power supplies may be hot-swapped to eliminate system
down-time during replacement.
For a detailed description of the AC and DC power supply modules, see Chapter 3 and
Chapter 4, respectively.