Cisco Systems AS5850 manual Cpu, Eeprom Nvram

Chapter 1 Cisco AS5850 Product Overview

Field-Replaceable Units

•Boots and reloads software images

•Provides source clocks used by all feature cards and power supplies

•Provides a BITS input BNC connector

•Connects to an external alarm source through a connector located on the front panel

Install the RSC card in the Cisco AS5850 in either slot 6 or slot 7. The card plugs directly into the backplane.

The RSC card consists of the following components:

•CPU

–RSC (QED RM7000 - 250MHz)

–ERSC (Broadcom BCM1250 - 650MHZ).

•1Gigabyte of DDR memory on ERSC

•I/O controller

•Compact Flash memory card

•Boot Flash memory

•EEPROM

•NVRAM

•Packet switch ASICs

•Fast Ethernet, console, auxiliary and two Gigabit Ethernet interfaces

For detailed specification tables, refer to Appendix A, “Cisco AS5850 Specifications.”

Figure 1-6shows the RSC components.

Figure 1-6 RSC Components

Backplane connector

SDRAM

MIN	T	MIN	HIST
	HIS
S		US	35589
MBU		MB
R		R
PW		PW

Compact flash Gigabit Ethernet ports

Note The universal gateway supports two RSCs for a redundant connection to the network backbone or for a split backplane configuration.

Cisco AS5850 Universal Gateway Hardware Installation Guide

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