Page 207 - Optical Switching And Networking Handbook

09_200023_CH08/Batesx 1/17/01 8:20 AM Page 192

192 Chapter 8

Location "A" Location "B"
Figure 8-4 Dumb Terminals
Host
Point-to-point Controller
applications using
low-speed
communications DS1

Router
Router
LAN
E1
CODEC
CODEC
Video DS1 TV

2-DS1

PBX
PBX

Location "A" Location "B"
Figure 8-5 Dumb Terminals
Bundled services Host
Controller
on a point-to-point
DS1
SONET OC-1 circuit 1.5 DS1

Router Router
LAN 16 Mbps
16 Mbps
OC-12
MUX OC1 Telco Telco OC1 MUX
CODEC
CODEC
6 Mbps
Video 6 Mbps TV
1.5 DS1
DS1
DS1 1.5 DS1

PBX PBX