
Chapter 1 Product Description
1-2
1.2 Applications
1.2.1 OC3/STM1 Multi-Service Drop (DS3) with DS0 Digital Cross-Connect
In this application all optical ports have 1+1 protection. The V4100 could have up to three DS3 drops. Any
DS0 inside any DS3 or STM1 port could be cross-connected to any other DS0 inside any DS3 or STM1 port.
Figure 1- 1 OC3/STM1 Multi-Service Drop (DS3) with DS0 Digital Cross-Connect
1.2.2 OC3/STM1 Multi-Service Drop (E3) with DS0 Digital Cross-Connect
In this application all optical ports have 1+1 protection. The V4100 could have up to three E3 drops. Any
DS0 inside any E3 or STM1 port could be cross-connected to any other DS0 inside any E3 or STM1 port.
Loop-V 4200-28
Loop-V 4100
...
T1/ E1
V.35
Router
OC3/STM1
1+1
Protection
DS3
OC3/STM1
OC3/STM1
OC3/STM1
1+1
Protection
DS3
DS3
OC3/STM1 Multi-Service Drop with DS0 Digital Cross Connect