OptiX OSN 7500 
Technical Manual - System Description  3 Hardware 
 
Huawei Technologies Proprietary 
2-1 
2 Functions 
This chapter introduces the functions of the OptiX OSN 7500 as follows: 
 
Capacity 
 
Service 
 
Interface 
 
Intelligent features 
 
Networking 
 
Resilient packet ring 
 
Protection 
2.1  Capacity 
2.1.1  Cross-Connect Capacity 
The OptiX OSN 7500 provides two types of SDH cross-connect board: GXCSA and 
GXCSB. Table 2-1 shows their cross-connect capacity.