Cisco RFGW-10, Руководство по установке оборудования

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1-4
Cisco RF Gateway 10 Hardware Installation Guide
OL-16264-04
Chapter 1 Overview
Cisco RFGW-10 IOS Software
Table 1-1 DOCSIS and EuroDOCSIS Downstream Data Rates
Cisco RFGW-10 IOS Software
The Cisco RFGW-10 UEQAM runs the Cisco IOS software, which is stored on the compact flash
memory disks that fit in the single compact flash memory slot on the front of the Supervisor Cards. The
compact flash can store a Cisco IOS image or the configuration file.
In addition to the flash memory disks, each Supervisor module contains onboard flash memory that
stores a boot loader. The loader executes following a system reset to reload and execute the Cisco IOS
software on the flash memory disks.
The Supervisor module also stores the system configuration in the onboard flash memory. The
configuration information read from the flash memory is buffered in the operational memory following
initialization, and is written to the flash memory device when the configuration is saved.
Each line card also contains an onboard flash memory that is used to store a boot loader, similar in
function to that used on the Supervisor card. However, the line card loader executes following a system
reset, line card reset, or line card insertion to reload and executes any code that must run on the line card.
Software images may also be stored on an external TFTP server. Based on the configuration, the proper
image might be downloaded from the TFTP server and executed.
Downstream Channel
Width, MHz Modulation Scheme,
bit/symbol
Baud Rate, MSym/sec Raw Bit Rate, Mb/sec
Throughput (Bit Rate
- Overhead), Mb/sec
6 64 QAM (6)
256 QAM (8)
5.056
5.360
30.34
42.88
27
38
8 64 QAM (6)
256 QAM (8)
6.952
6.952
41.71
55.62
37
48