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System Overview
3
Chapter 1
System Overview
This chapter provides an overview of the G10 CMTS.
!
System Description on page 3
!
Field-Replaceable Units (FRUs) on page 6
!
G10 CMTS Features and Functions on page 7
!
G10 CMTS Components on page 8
!
G10 CMTS Management on page 10
!
G10 CMTS Hardware Overview on page 10
System Description
The JUNOSg software runs on the G10 cable modem termination system (CMTS) and
provides both IP routing (Layer 3) and IEEE 802.1 bridging (Layer 2), as well as software for
interface, network, cable services, and chassis management. The G10 CMTS manages
Internet voice and data. It functions as the interface between the service networks—Internet,
Public Switched Telephone Network (PSTN)—and the
hybrid fiber/coax
(HFC) network of
subscribers, as shown in Figure 1 on page 4. This is the “last mile” of broadband service, with
the CMTS typically located in the cable headend or distribution hub. It is targeted at the
following data and voice aggregation applications:
!
Large CATV hub sites—DOCSIS multiservice, residential, and commercial IP network
access over HFC networks maintained by cable television (CATV)
multiple service
operators
(MSOs) needing enhanced integrated data, voice, and video in large
metropolitan areas.
!
Small CATV hub sites—Smaller hub sites aggregated over metropolitan fiber rings
supporting Gigabit Ethernet.
Figure 2 on page 5 illustrates a typical cable headend architecture.
Содержание G10 CMTS
Страница 8: ... JUNOSg 3 0 G10 CMTS Hardware Guide viii ...
Страница 18: ... JUNOSg 3 0 G10 CMTS Hardware Guide 2 ...
Страница 34: ...G10 CMTS Hardware Overview JUNOSg 3 0 G10 CMTS Hardware Guide 18 ...
Страница 46: ...DOCSIS Module JUNOSg 3 0 G10 CMTS Hardware Guide 30 Figure 12 DOCSIS Module Front Panel HotSwap ...
Страница 55: ... Hardware Component Overview Chassis Control Module 39 Figure 15 Chassis Control Module Front Panel Eth0 ...
Страница 72: ...Chassis Rear Modules JUNOSg 3 0 G10 CMTS Hardware Guide 56 Figure 21 Hard Disk Module Rear Panel C O M Eth ...
Страница 82: ... JUNOSg 3 0 G10 CMTS Hardware Guide 66 ...
Страница 112: ...Rack Mounting JUNOSg 3 0 G10 CMTS Hardware Guide 96 Figure 25 Air Flow Through Chassis ...
Страница 116: ...Rack Mounting JUNOSg 3 0 G10 CMTS Hardware Guide 100 Figure 29 Rack Fully Populated with Three G10 CMTS Chassis ...
Страница 118: ...Install Power Supplies JUNOSg 3 0 G10 CMTS Hardware Guide 102 Figure 30 Power Supply Installation 1 2 ...
Страница 138: ...Connect to Power Sources JUNOSg 3 0 G10 CMTS Hardware Guide 122 Figure 39 DC Power Transition Module ...
Страница 148: ... JUNOSg 3 0 G10 CMTS Hardware Guide 132 ...
Страница 156: ...Upstream RF Measurement JUNOSg 3 0 G10 CMTS Hardware Guide 140 ...
Страница 188: ... JUNOSg 3 0 G10 CMTS Hardware Guide 172 ...
Страница 196: ...Radio Frequency RF Specifications JUNOSg 3 0 G10 CMTS Hardware Guide 180 ...
Страница 202: ...EIA Channel Plans JUNOSg 3 0 G10 CMTS Hardware Guide 186 ...
Страница 203: ... 187 Part 5 Index Index on page 189 ...
Страница 204: ... JUNOSg 3 0 G10 CMTS Hardware Guide 188 ...
Страница 209: ... Index 193 Index V ventilation 69 89 95 101 124 161 162 167 video servers 7 voltage power supply 27 ...
Страница 210: ... Index JUNOSg 3 0 G10 CMTS Hardware Guide 194 ...