A SERVICE OF

logo

Open as PDF
next previous
Designing and Expanding the Network 2 - 33
Example: Network with Three Concentrators and a Fourth
Concentrator in Full Redundancy Configuration
In the following example, three concentrators are active.
Figure 2-12. Network With 3 Concentrators
Concentrator B is a redundant concentrator for Concentrator A. The fiber
equivalent distance between transceivers attached to Concentrators C and
D is:
3 * 560 m + 500 m + 1000 m + 500 m + 500 m = 4180 meters
Because the sum is less than 4200 meters, the configuration is legal.
Primary Link
Backup Link
Normal Link
10BASE-FL Transceivers
500 m
1 km
1 km
500 m
500 m
500 m
500 m
Transceivers
Concentrator A
Concentrator B
Concentrator DConcentrator C
10BASE-FL
Fiber cable