Grass Valley Kayenne XL Package Installation v.7.0.4 - Manual (Page 79)

Kayenne XL Package — Installation and Service Manual 79
Network Cabling
The PCU Ethernet switch to Frame Ethernet switch cable connection is
used for Menu Panel communications. The second cable connects the Panel
PCU directly to the Frame’s Ethernet switch. Using two cables provides
additional Ethernet communications throughput (to support Image Store
file operations) and also offers redundancy. Because the Menu Panel and
the Control Panel have independent cable connections, failure of one of
these cables will not completely disable the Kayenne system. Either the
Menu Panel or the Control Panel will remain operational after a single
network cable failure.