Cisco7603 and Cisco7603-S routers

Supervisor engines

Both, the Cisco7603 and the Cisco7603-S router have three horizontal slots being numbered from top to bottom.
While slot 1 is reserved for the supervisor engine, slot 2 can contain an optional redundant supervisor engine.
When installing a redundant supervisor engine, both supervisor engines must be identical.
The GBIC uplink ports are fully functional on the redundant supervisor engine in stand by

Supported supervisor engines in the Cisco7603 router

• Supervisor engine 2
  
  • WS-X6K-S2-PFC2
    
  • WS-X6K-S2-MSFC2
    
  • WS-X6K-S2U-MSFC2
    

• Supervisor engine 720
  
  • WS-SUP720
    
  • WS-SUP720-3B
    
  • WS-SUP720-3BXL
    

While being supported in the WS-C6503 and WS-C6503-E chassis, the supervisor engine 32 is not supported in the ciso7603 router

Supported supervisor engines in the Cisco7603-S router

• Supervisor engine 32
  
  • WS-SUP32-GE-3B
    
  • WS-SUP32-10GE-3B
    

• Supervisor engine 720
  
  • WS-SUP720
    
  • WS-SUP720-3B
    
  • WS-SUP720-3BXL
    

• Route switch processor 720
  
  • RSP720-3C-GE
    
  • RSP720-3CXL-GE
    

the supervisor engine 2 is not longer supported in the Cisco7603-S router.