Cisco AS5850 Посібник з встановлення обладнання - Сторінка 15
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Chapter 1
Cisco AS5850 Product Overview
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
•
–
–
1Gigabyte of
•
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
Figure 1-6
Figure 1-6
SDRAM
The universal gateway supports two RSCs for a redundant connection to the network backbone or for
Note
a split backplane configuration.
78-10573-06 0A
RSC (QED RM7000 - 250MHz)
ERSC (Broadcom BCM1250 - 650MHZ).
DDR memory on ERSC
shows the RSC components.
RSC Components
Appendix A, "Cisco AS5850 Specifications."
Compact flash
Gigabit Ethernet ports
Cisco AS5850 Universal Gateway Hardware Installation Guide
Field-Replaceable Units
Backplane
connector
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