
Chapter 1 Product Description
1-3
Figure 1- 2 OC3/STM1 Multi-Service Drop (E3) with DS0 Digital Cross-Connect
1.2.3 OC3/STM1 DS1 Drop with DS0 Digital Cross-Connect
All optical ports in this application have 1+1 protection. The V4100 could have up to three E1 drops instead
of DS3 drops. The application is intended to allow any 28 T1s or 21 E1s inside any DS0 port or STM1 port
to cross-connect with any other T1s or E1s inside any DS0 or STM1 port.
Figure 1- 3 OC3/STM1 DS1 Drop with DS0 Digital Cross-Connect
Loop-V 4100
OC3/STM1
1+1
Protection
63 E1 / 84T1
OC3/STM1
OC3/STM1
OC3/STM1
1+1
Protection
OC3/STM1 DS1 Drop with DS0 Digital Cross Connect
. . . . .
Loop-V 4200-28
Loop-V 4100
...
T1/ E1
V.35
Router
OC3/STM1
1+1
Protection
E3
OC3/STM1
OC3/STM1
OC3/STM1
1+1
Protection
E3
E3
OC3/STM1 Multi-Service Drop with DS0 Digital Cross Connect