
Configuring Serial Interfaces on Cisco IOS XR Software
Information About Serial Interfaces
High Level 
Table 10 provides a 
Table 10  | Overview: Configuring a T3 Serial Interface on a Clear Channel SPA  | 
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Step | Task | Module | Section | 
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1.  | Use the  | “Configuring Clear Channel T3/E3  | “Setting the Card Type for the Clear  | 
  | command to set serial mode for the  | Controllers and Channelized T3  | Channel SPAs”  | 
  | SPA to be T3, if necessary.  | Controllers on Cisco IOS XR  | 
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  | Note By default, the   | Software”  | 
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  | T3/E3 SPA is set to run in  | 
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  | T3 mode.  | 
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2.  | Configure the T3 controller  | “Configuring Clear Channel T3/E3  | “Setting the Card Type for the Clear  | 
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  | Controllers and Channelized T3  | Channel SPAs”  | 
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  | Controllers on Cisco IOS XR  | 
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  | Software”  | 
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3.  | Configure the serial interface that is  | “Configuring Serial Interfaces on  | “Configuring the Serial Interfaces”  | 
  | associated with the T3 controller  | Cisco IOS XR Software”  | 
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  | you configured in Step 2.  | 
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  | Table 11 provides a   | ||
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Table 11  | Overview: Configuring an E3 Serial Interface on a Clear Channel SPA  | ||
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Step  | Task  | Module  | Section  | 
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1.  | Use the   | Configuring Clear Channel T3/E3  | Setting the Card Type for the Clear  | 
  | command to set serial mode for the  | Controllers and Channelized T3  | Channel SPAs  | 
  | SPA to be E3.  | Controllers on Cisco IOS XR Software  | 
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2.  | Configure the E3 controller  | Configuring Clear Channel T3/E3  | Setting the Card Type for the Clear  | 
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  | Controllers and Channelized T3  | Channel SPAs  | 
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  | Controllers on Cisco IOS XR Software  | 
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3.  | Configure the serial interface that is  | Configuring Serial Interfaces on  | Configuring the Serial Interfaces  | 
  | associated with the E3 controller  | Cisco IOS XR Software  | 
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  | you configured in Step 2.  | 
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Cisco IOS XR Interface and Hardware Component Configuration Guide