Cisco 2600 Series Hardware Installation Manual page 98

Appendix B Maintaining the Router
Replacing the Boot ROM
Figure B-13 System Card Layout for Cisco 261x, Cisco 262x, and Cisco 265x Routers
Duart
reset Reset
Pin 1
Primary memory
Boot
(DRAM DIMMs)
System-code SIMM
ROM
(Flash memory)
Advanced Interface
Lattice
Module
U22 U23
PCI connector
Ethernet AUX
Ethernet Console
Cisco 2600 Series Routers Hardware Installation Guide
B-30
OL-2171-02