Cisco 800M Series Configuration Manual

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C H A P T E R39Cisco 800M Series Integrated Services Routers Software Configuration Guide4Configuring the Serial InterfaceThis chapter describes configuring the serial interface for Cisco 800M Series ISRs in the followingsections:• Configuring the Serial Interface, page 39• Features Supported by Serial Module, page 39• Information About Configuring Serial Interfaces, page 41• How to Configure Serial Interfaces, page 45• Configuration Examples, page 47Configuring the Serial InterfaceThe Cisco 800M Series Integrated Services Router (ISR) provides serial WAN connectivity to remotesites using Cisco High-Level Data Link Control (HDLC), Point-to-Point Protocol (PPP), or Frame Relayencapsulation through the pluggable, serial WAN interface module. The Cisco 800M Series ISR supportsboth synchronous and asynchronous modes of communication.Features Supported by Serial ModuleThe Cisco 800M Series ISR has 2 WAN slots that can host single-port serial module or multi-mode 3Gmodule and supports the following combinations.• Serial module in slot 0 and 3G module in slot 1• 3G module in slot 0 and serial module in slot 1• Serial module in slot 0 and serial module in slot 1The features supported by the single-port serial module on Cisco 800M Series ISR is given as follows:• Supports the following encapsulations :– HDLC– PPP– Frame Relay– Serial Line Internet Protocol (SLIP)• Supports the following serial protocols