Cisco Router IOS XR Getting Started Manual page 21

Chapter 1 Introduction to Cisco IOS XR Software
Figure 1-3
1 Cisco CRS-1 16-Slot Line Card Chassis (two
required)
2 Cisco CRS-1 Fabric Card Chassis (four
required)
For more information on multishelf systems, see
on a Multishelf System."
OL-10957-02
Four-FCC Multishelf System
1
Cisco CRS-1 Multishelf System Overview
2 1
3 Cisco Catalyst 6509 Switch (two suggested)
Chapter 3, "Bringing Up the Cisco IOS XR Software
Cisco IOS XR Getting Started Guide
3
INPUT FAN OUTPUT INPUT FAN OUTPUT
OK OK FAIL OK OK FAIL
INPUT FAN OUTPUT INPUT FAN OUTPUT
OK OK FAIL OK OK FAIL
3
1-5