Juniper Networks G10 CMTS manual Headend Architecture

System Description

Figure 2: Headend Architecture								•
								•
			Head End					•
								•
								•
								•
								•
	Upconverter	Analog						•
		Video
Broadcast Channels:								•
Satellite, Fiber,	Upconverter	Digital	Combiner					•
Cable,		Video
Others				54-750 MHz				•
	Upconverter	Other						•
			QAM					•
								•
			Data
	Remote	Operations						•
PSTN	Dial-Up	System						•
	Access
		Support	Upconverters	Splitter
	Server							•
		Security &
								•
		Access
		Control
	Backbone				E/O	O/E		•
			Mod
	Transport							•
Backbone	Adapter,	Network
								•
Network	Switch,	Termination
	LAN, or		Demod		5-42 MHz			•
	Hub
Remote	Local		CMTS	Combiner				•
								•
	Server
Server				and
	Facility
Facility				Signal				•
				Router
								•
	Interactive	Audio / Video
								•
ATM	Cable						Fib
			Demod
	Gateway						U
								•
								•
								•
								•
					Coax Cable			•
								•
Video								•
								•
	Data							•
								•
								•
								•
								•
Telephony			High-speed					•
								•
			Data
								•
								•
								•
								•
								•
								•
								•
								•
								•
								•
								•
								•
								•
								•
								•
								•

System Overview 5