Cisco 4000 Series Hardware Installation Manual page 124

Chapter 4 Configure Initial Router Settings on Cisco 4000 Series ISRs
Verify Initial Configuration on Cisco 4000 Series ISRs
software is a program that is separate from the Cisco IOS XE software. During normal startup, the ROM
Monitor initializes the router, and then control passes to the Cisco IOS XE software. After the
Cisco IOS XE software takes over, the ROM Monitor is no longer in use. For more information, see the
ROMMON Overview section of the Upgrading Field-Programmable Hardware Devices for Cisco 4000
Series ISRs
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
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