Avaya CS 1000E Upgrade Procedures page 73

Figure 5
Typical three cabinet SA system
Avaya Communication Server 1000E Upgrade
Upgrading Small System hardware
Note: A High Speed Pipe package (410) must be activated in order to
install any type of redundancy option. For more information, see
"Appendix A: Upgrading to High Availability" on
Page 73 of 226
page 201.
Hardware Upgrade Procedures