7
Performance Route Processor Installation and Configuration Guide
OL-11656-01
Product Overview
In addition to the functionality listed for the PRP-1, the PRP-2 provides the
following additional functions:
•
One IEEE 802.3 10/100/1000-megabits-per-second (Mbps) Ethernet port
•
Two building integrated timing system (BITS) ports for connecting to an
external clock source
PRP Components
The PRP-1 contains the following components:
•
PowerPC processor—Motorola PowerPC 7450 central processing unit
(CPU). The CPU runs at an external bus clock speed of 133 MHz and an
internal clock speed of 667 MHz.
•
SDRAM—Up to 2 gigabytes (GB) of Cisco-approved synchronous dynamic
random-access memory (SDRAM) on two dual in-line memory modules
(DIMMs). 512 MB of SDRAM is the default shipping configuration.
SDRAM is field replaceable only when using Cisco-approved DIMMs.
•
SRAM—2 megabytes (MB) of static random-access memory (SRAM) for
secondary CPU cache memory functions. SRAM is
not
user configurable or
field replaceable.
•
NVRAM—2 MB of nonvolatile RAM (NVRAM). NVRAM is
not
user
configurable or field replaceable.
•
Memory—Additional memory components include onboard Flash memory
and up to two Flash disks.
•
Sensors—Air-temperature sensors for environmental monitoring.
