HP DC SAN Backbone Director Switch Hardware Reference Guide (5697-2158, August 2012)

Figure 16 3-way ICL cable connections (configuration 1)
4. Chassis 31. Chassis 1
5. ICL connector (ICL 1)2. Core switch blades
6. ICL connector (ICL 0)3. Chassis 2
Using the optional HP DC SAN Director Inter-Chassis Link cable kit 35